| |
Records |
Links |
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Author |
Li, L.L.; Xu, W.; Peeters, F.M. |
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| |
Title |
Intrinsic optical anisotropy of [001]-grown short-period InAs/GaSb superlattices |
Type |
A1 Journal article |
| |
Year |
2010 |
Publication |
Physical review : B : condensed matter and materials physics |
Abbreviated Journal |
Phys Rev B |
|
| |
Volume |
82 |
Issue |
23 |
Pages |
235422-235422,10 |
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| |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
|
| |
Abstract |
We theoretically investigate the intrinsic optical anisotropy or polarization induced by the microscopic interface asymmetry (MIA) in no-common-atom (NCA) InAs/GaSb superlattices (SLs) grown along the [001] direction. The eight-band K⋅P model is used to calculate the electronic band structures and incorporates the MIA effect. A Boltzmann equation approach is employed to calculate the optical properties. We found that in NCA InAs/GaSb SLs, the MIA effect causes a large in-plane optical anisotropy for linearly polarized light and the largest anisotropy occurs for light polarized along the [110] and [11̅ 0] directions. The relative difference between the optical-absorption coefficient for [110]-polarized light and that for [11̅ 0]-polarized light is found to be larger than 50%. The dependence of the in-plane optical anisotropy on temperature, photoexcited carrier density, and layer width is examined in detail. This study is important for optical devices which require the polarization control and selectivity. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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| |
Language |
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Wos |
000286768800007 |
Publication Date |
2010-12-13 |
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| |
Series Editor |
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Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1098-0121;1550-235X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
3.836 |
Times cited |
18 |
Open Access |
|
|
| |
Notes |
; This work was supported partly by the Flemish Science Foundation (FWO-VL), the Belgium Science Policy (IAP), the NSF of China (Grants No. 10664006, No. 10504036, and No. 90503005), Special Funds of 973 Project of China (Grant No. 2005CB623603), and Knowledge Innovation Program of the Chinese Academy of Sciences. ; |
Approved |
Most recent IF: 3.836; 2010 IF: 3.774 |
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| |
Call Number |
UA @ lucian @ c:irua:88909 |
Serial  |
1717 |
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| Permanent link to this record |
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| |
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Author |
Fedina, L.; Gutakovskii, A.; Aseev, A.; van Landuyt, J.; Vanhellemont, J. |
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| |
Title |
Intrinsic point defect clustering in Si: a study by HVEM and HREM in situ electron irradiation |
Type |
H3 Book chapter |
| |
Year |
1997 |
Publication |
|
Abbreviated Journal |
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| |
Volume |
|
Issue |
|
Pages |
63-92 |
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| |
Keywords |
H3 Book chapter; Electron microscopy for materials research (EMAT) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Kluwer Academic |
Place of Publication |
s.l. |
Editor |
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Language |
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Wos |
|
Publication Date |
0000-00-00 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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| |
ISSN |
|
ISBN |
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Additional Links |
UA library record |
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| |
Impact Factor |
|
Times cited |
|
Open Access |
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| |
Notes |
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Approved |
Most recent IF: NA |
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| |
Call Number |
UA @ lucian @ c:irua:21412 |
Serial |
1718 |
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| Permanent link to this record |
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Author |
Conings, B.; Drijkoningen, J.; Gauquelin, N.; Babayigit, A.; D'Haen, J.; D'Olieslaeger, L.; Ethirajan, A.; Verbeeck, J.; Manca, J.; Mosconi, E.; Angelis, F.D.; Boyen, H.G.; |
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| |
Title |
Intrinsic thermal instability of methylammonium lead trihalide perovskite |
Type |
A1 Journal article |
| |
Year |
2015 |
Publication |
Laser physics review |
Abbreviated Journal |
Adv Energy Mater |
|
| |
Volume |
5 |
Issue |
5 |
Pages |
1500477 |
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| |
Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
Organolead halide perovskites currently are the new front-runners as light absorbers in hybrid solar cells, as they combine efficiencies passing already 20% with deposition temperatures below 100 °C and cheap solution-based fabrication routes. Long-term stability remains a major obstacle for application on an industrial scale. Here, it is demonstrated that significant decomposition effects already occur during annealing of a methylammonium lead triiode perovskite at 85 °C even in inert atmosphere thus violating international standards. The observed behavior supports the view of currently used perovskite materials as soft matter systems with low formation energies, thus representing a major bottleneck for their application, especially in countries with high average temperatures. This result can trigger a broader search for new perovskite families with improved thermal stability. |
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| |
Address |
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Corporate Author |
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Thesis |
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| |
Publisher |
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Place of Publication |
S.l. |
Editor |
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| |
Language |
|
Wos |
000359374900005 |
Publication Date |
2015-06-03 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1614-6832; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
16.721 |
Times cited |
1691 |
Open Access |
|
|
| |
Notes |
FWO G004413N; GOA Solarpaint |
Approved |
Most recent IF: 16.721; 2015 IF: 16.146 |
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| |
Call Number |
c:irua:127298UA @ admin @ c:irua:127298 |
Serial |
1719 |
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| Permanent link to this record |
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| |
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Author |
Vertes, A.; Gijbels, R.; Adams, F. |
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| |
Title |
Introduction |
Type |
H3 Book chapter |
| |
Year |
1993 |
Publication |
|
Abbreviated Journal |
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| |
Volume |
|
Issue |
|
Pages |
1-6 |
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| |
Keywords |
H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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| |
Abstract |
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| |
Address |
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Corporate Author |
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Thesis |
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Publisher |
Wiley |
Place of Publication |
New York |
Editor |
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Language |
|
Wos |
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Publication Date |
0000-00-00 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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| |
ISSN |
|
ISBN |
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Additional Links |
UA library record |
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| |
Impact Factor |
|
Times cited |
|
Open Access |
|
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| |
Notes |
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Approved |
no |
|
| |
Call Number |
UA @ lucian @ c:irua:6122 |
Serial |
1720 |
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| Permanent link to this record |
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| |
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Author |
Dunin-Borkowski, R.E.; Lichte, H.; Tillmann, K.; Van Aert, S.; Van Tendeloo, G. |
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| |
Title |
Introduction to a special issue in honour of W. Owen Saxton, David J. Smith and Dirk Van Dyck on the occasion of their 65th birthdays |
Type |
Editorial |
| |
Year |
2013 |
Publication |
Ultramicroscopy |
Abbreviated Journal |
Ultramicroscopy |
|
| |
Volume |
134 |
Issue |
|
Pages |
1-1 |
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| |
Keywords |
Editorial; Electron microscopy for materials research (EMAT) |
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Abstract |
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| |
Address |
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Corporate Author |
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Thesis |
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Publisher |
Elsevier science bv |
Place of Publication |
Amsterdam |
Editor |
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| |
Language |
|
Wos |
000324474900001 |
Publication Date |
2013-07-24 |
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| |
Series Editor |
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Series Title |
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Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0304-3991; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
2.843 |
Times cited |
1 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 2.843; 2013 IF: 2.745 |
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| |
Call Number |
UA @ lucian @ c:irua:109917 |
Serial |
1721 |
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| Permanent link to this record |
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Author |
Wang, X.F.; Vasilopoulos, P.; Peeters, F.M. |
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| |
Title |
Inverse flux quantum periodicity of magnetoresistance oscillations in two-dimensional short-period surface superlattices |
Type |
A1 Journal article |
| |
Year |
2004 |
Publication |
Physical review : B : condensed matter and materials physics |
Abbreviated Journal |
Phys Rev B |
|
| |
Volume |
69 |
Issue |
|
Pages |
035331,1-11 |
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| |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
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| |
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
Lancaster, Pa |
Editor |
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| |
Language |
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Wos |
000188883800075 |
Publication Date |
2004-01-30 |
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| |
Series Editor |
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Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1098-0121;1550-235X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
3.836 |
Times cited |
10 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 3.836; 2004 IF: 3.075 |
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| |
Call Number |
UA @ lucian @ c:irua:69379 |
Serial |
1722 |
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| Permanent link to this record |
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Author |
Mao, M.; Bogaerts, A. |
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| |
Title |
Investigating the plasma chemistry for the synthesis of carbon nanotubes/nanofibres in an inductively coupled plasma enhanced CVD system : the effect of different gas mixtures |
Type |
A1 Journal article |
| |
Year |
2010 |
Publication |
Journal of physics: D: applied physics |
Abbreviated Journal |
J Phys D Appl Phys |
|
| |
Volume |
43 |
Issue |
20 |
Pages |
205201,1-205201,20 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
A hybrid model, called the hybrid plasma equipment model (HPEM), was used to study an inductively coupled plasma in gas mixtures of H2 or NH3 with CH4 or C2H2 used for the synthesis of carbon nanotubes or carbon nanofibres (CNTs/CNFs). The plasma properties are discussed for different gas mixtures at low and moderate pressures, and the growth precursors for CNTs/CNFs are analysed. It is found that C2H2, C2H4 and C2H6 are the predominant molecules in CH4 containing plasmas besides the feedstock gas, and serve as carbon sources for CNT/CNF formation. On the other hand, long-chain hydrocarbons are observed in C2H2-containing plasmas. Furthermore, the background gases CH4 and C2H2 show a different decomposition rate with H2 or NH3 addition at moderate pressures. |
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| |
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
London |
Editor |
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| |
Language |
|
Wos |
000277373400009 |
Publication Date |
2010-05-05 |
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| |
Series Editor |
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Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0022-3727;1361-6463; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
2.588 |
Times cited |
52 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 2.588; 2010 IF: 2.109 |
|
| |
Call Number |
UA @ lucian @ c:irua:82067 |
Serial |
1723 |
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| Permanent link to this record |
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| |
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Author |
Mao, M.; Bogaerts, A. |
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| |
Title |
Investigating the plasma chemistry for the synthesis of carbon nanotubes/nanofibres in an inductively coupled plasma-enhanced CVD system : the effect of processing parameters |
Type |
A1 Journal article |
| |
Year |
2010 |
Publication |
Journal of physics: D: applied physics |
Abbreviated Journal |
J Phys D Appl Phys |
|
| |
Volume |
43 |
Issue |
31 |
Pages |
315203-315203,15 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
A parameter study is carried out for an inductively coupled plasma used for the synthesis of carbon nanotubes or carbon nanofibres (CNTs/CNFs), by means of the Hybrid Plasma Equipment Model. The influence of processing parameters including gas ratio for four different gas mixtures typically used for CNT/CNF growth (i.e. CH4/H2, CH4/NH3, C2H2/H2 and C2H2/NH3), inductively coupled plasma (ICP) power (501000 W), operating pressure (10 mTorr1 Torr), bias power (01000 W) and temperature of the substrate (01000 °C) on the plasma chemistry is investigated and the optimized conditions for CNT/CNF growth are analysed. Summarized, our calculations suggest that a lower fraction of hydrocarbon gases (CH4 or C2H2, i.e. below 20%) and hence a higher fraction of etchant gases (H2 or NH3) in the gas mixture result in more 'clean' conditions for controlled CNT/CNF growth. The same applies to a higher ICP power, a moderate ICP gas pressure above 100 mTorr (at least for single-walled carbon nanotubes), a high bias power (for aligned CNTs) and an intermediate substrate temperature. |
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| |
Address |
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| |
Corporate Author |
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Thesis |
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| |
Publisher |
|
Place of Publication |
London |
Editor |
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| |
Language |
|
Wos |
000280275200007 |
Publication Date |
2010-07-17 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0022-3727;1361-6463; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
2.588 |
Times cited |
17 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 2.588; 2010 IF: 2.109 |
|
| |
Call Number |
UA @ lucian @ c:irua:88365 |
Serial |
1724 |
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| Permanent link to this record |
| |
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| |
|
Author |
Stuer, C.; van Landuyt, J.; Bender, H.; de Wolf, I.; Rooyackers, R.; Badenes, G. |
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| |
Title |
Investigation by convergent beam electron diffraction of the stress around shallow trench isolation structures |
Type |
A1 Journal article |
| |
Year |
2001 |
Publication |
Journal of the electrochemical society |
Abbreviated Journal |
J Electrochem Soc |
|
| |
Volume |
148 |
Issue |
11 |
Pages |
G597-G601 |
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| |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
Convergent beam electron diffraction (CBED) is used in this study to investigate the stress distribution around shallow trench isolation (STI) structures. Attention is given to the influence of the different processing parameters and the width and spacing of the structures. The use of a wet or a dry pregate oxidation is found to have a strong influence on the stress behavior. Isolated lines show more stress, leading to the formation of defects in the silicon substrate if a wet pregate oxidation is used. The CBED analyses are compared with micro-Raman and bright-field transmission electron microscopy measurements. (C) 2001 The Electrochemical Society. |
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Address |
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Corporate Author |
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Thesis |
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| |
Publisher |
|
Place of Publication |
New York, N.Y. |
Editor |
|
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| |
Language |
|
Wos |
000171653100038 |
Publication Date |
2002-07-26 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0013-4651; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
3.259 |
Times cited |
13 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 3.259; 2001 IF: 2.033 |
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| |
Call Number |
UA @ lucian @ c:irua:103394 |
Serial |
1725 |
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| Permanent link to this record |
| |
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| |
|
Author |
Cloots, R.; Rulmont, A.; Krekels, T.; Van Tendeloo, G.; Diko, P.; Ausloos, M. |
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| |
Title |
Investigation by electron diffraction microscopy of (RE)BaCuOS polycrystalline ceramic compounds: interpretation of unexpected superstructures and influence of secondary phases |
Type |
A1 Journal article |
| |
Year |
1993 |
Publication |
Journal of crystal growth |
Abbreviated Journal |
J Cryst Growth |
|
| |
Volume |
129 |
Issue |
|
Pages |
394-404 |
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| |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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| |
Abstract |
|
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| |
Address |
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| |
Corporate Author |
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Thesis |
|
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| |
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
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| |
Language |
|
Wos |
A1993KY53000003 |
Publication Date |
0000-00-00 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0022-0248 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
1.698 |
Times cited |
5 |
Open Access |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ lucian @ c:irua:7503 |
Serial |
1726 |
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| Permanent link to this record |
| |
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| |
|
Author |
Aerts, R.; Tu, X.; De Bie, C.; Whitehead, J.C.; Bogaerts, A. |
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| |
Title |
An investigation into the dominant reactions for ethylene destruction in non-thermal atmospheric plasmas |
Type |
A1 Journal article |
| |
Year |
2012 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
|
| |
Volume |
9 |
Issue |
10 |
Pages |
994-1000 |
|
| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
A crucial step, which is still not well understood in the destruction of volatile organic compounds (VOCs) with low temperature plasmas, is the initiation of the process. Here, we present a kinetic model for the destruction of ethylene in low temperature plasmas that allows us to calculate the relative importance of all plasma species and their related reactions. Modifying the ethylene concentration and/or the SED had a major impact on the relative importance of the radicals (i.e., mainly atomic oxygen) and the metastable nitrogen (i.e., more specifically N2(equation image)) in the destruction process. Our results show that the direct destruction by electron impact reactions for ethylene can be neglected; however, we can certainly not neglect the influence of N2(equation image)). |
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| |
Address |
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Corporate Author |
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Thesis |
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| |
Publisher |
|
Place of Publication |
Weinheim |
Editor |
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| |
Language |
|
Wos |
000309750300008 |
Publication Date |
2012-07-30 |
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| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1612-8850; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
2.846 |
Times cited |
46 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 2.846; 2012 IF: 3.730 |
|
| |
Call Number |
UA @ lucian @ c:irua:101765 |
Serial |
1727 |
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| Permanent link to this record |
| |
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| |
|
Author |
Saeed, A.; Khan, A.W.; Shafiq, M.; Jan, F.; Abrar, M.; Zaka-ul-Islam, M.; Zakaullah, M. |
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| |
Title |
Investigation of 50 Hz pulsed DC nitrogen plasma with active screen cage by trace rare gas optical emission spectroscopy |
Type |
A1 Journal article |
| |
Year |
2014 |
Publication |
Plasma science & technology |
Abbreviated Journal |
Plasma Sci Technol |
|
| |
Volume |
16 |
Issue |
4 |
Pages |
324-328 |
|
| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
Optical emission spectroscopy is used to investigate the nitrogen-hydrogen with trace rare gas (4% Ar) plasma generated by 50 Hz pulsed DC discharges. The filling pressure varies from 1 mbar to 5 mbar and the current density ranges from 1 mA.cm(-2) to 4 mA.cm(-2). The hydrogen concentration in the mixture plasma varies from 0% to 80%, with the objective of identifying the optimum pressure, current density and hydrogen concentration for active species ([N] and [N-2]) generation. It is observed that in an N-2-H-2 gas mixture, the concentration of N atom density decreases with filling pressure and increases with current density, with other parameters of the discharge kept unchanged. The maximum concentrations of active species were found for 40% H-2 in the mixture at 3 mbar pressure and current density of 4 mA.cm(-2). |
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| |
Address |
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| |
Corporate Author |
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Thesis |
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| |
Publisher |
Institute of Plasma Physics, the Chinese Academy of Sciences |
Place of Publication |
Beijing |
Editor |
|
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| |
Language |
|
Wos |
000335909600005 |
Publication Date |
2014-04-29 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1009-0630; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
0.83 |
Times cited |
5 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 0.83; 2014 IF: 0.579 |
|
| |
Call Number |
UA @ lucian @ c:irua:117686 |
Serial |
1728 |
|
| Permanent link to this record |
| |
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| |
|
Author |
Oleshko, V.; Schryvers, D.; Gijbels, R.; Jacob, W. |
|
| |
Title |
Investigation of Ag, Ag2S and Ag(Br,I) small particles by HREM and AEM |
Type |
H3 Book chapter |
| |
Year |
1998 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
293-294 |
|
| |
Keywords |
H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
s.l. |
Editor |
|
|
| |
Language |
|
Wos |
|
Publication Date |
0000-00-00 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Additional Links |
UA library record |
|
| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: NA |
|
| |
Call Number |
UA @ lucian @ c:irua:20553 |
Serial |
1729 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Musolino, N.; Bals, S.; Van Tendeloo, G.; Clayton, N.; Walker, E.; Flukiger, R. |
|
| |
Title |
Investigation of (Bi,Pb)2212 crystals : observation of modulation-free phase |
Type |
A1 Journal article |
| |
Year |
2004 |
Publication |
Physica: C : superconductivity |
Abbreviated Journal |
Physica C |
|
| |
Volume |
401 |
Issue |
1-4 |
Pages |
270-272 |
|
| |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
We report the complete disappearance of the structural modulation in heavily lead-doped Bi2-xPbxSr2CaCu2O8+delta crystals observed by transmission electron microscopy. Crystals with a nominal lead content of x = 0.8, corresponding to an effective lead content of x = 0.39, yield the non-modulated phase. The superconducting properties of this modulation-free phase (beta phase) have been studied and compared to those of undoped crystals displaying the modulated phase (alpha phase). Magnetisation measurements reveal that the irreversibility field H-irr(T) and relaxation rates are strongly improved within the beta phase. Measurements of the lower critical field, H-cl, show that the anisotropy factor, E, is considerably reduced in the modulation-free crystals. This is the signature of stronger coupling between CuO2 layers which in turn deeply influences the effectiveness of the pinning. These measurements explain the enhanced pinning properties in moderately Pb-doped crystals in which the a phase and P phase coexist. The enhanced pinning is not only due to the alpha/beta interfaces, which act as effective pinning centers: the emergence of modulation-free domains, characterized by a strongly reduced anisotropy, also significantly contribute to this effect. (C) 2003 Elsevier B.V. All rights reserved. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
|
| |
Language |
|
Wos |
000187852100050 |
Publication Date |
2003-10-17 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0921-4534; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
1.404 |
Times cited |
9 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 1.404; 2004 IF: 1.072 |
|
| |
Call Number |
UA @ lucian @ c:irua:94809 |
Serial |
1730 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Tinck, S.; Boullart, W.; Bogaerts, A. |
|
| |
Title |
Investigation of etching and deposition processes of Cl2/O2/Ar inductively coupled plasmas on silicon by means of plasmasurface simulations and experiments |
Type |
A1 Journal article |
| |
Year |
2009 |
Publication |
Journal of physics: D: applied physics |
Abbreviated Journal |
J Phys D Appl Phys |
|
| |
Volume |
42 |
Issue |
|
Pages |
095204,1-095204,13 |
|
| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
In this paper, a simulation method is described to predict the etching behaviour of Cl2/O2/Ar inductively coupled plasmas on a Si substrate, as used in shallow trench isolation for the production of electronic devices. The hybrid plasma equipment model (HPEM) developed by Kushner et al is applied to calculate the plasma characteristics in the reactor chamber and two additional Monte Carlo simulations are performed to predict the fluxes, angles and energy of the plasma species bombarding the Si substrate, as well as the resulting surface processes such as etching and deposition. The simulations are performed for a wide variety of operating conditions such as gas composition, chamber pressure, power deposition and substrate bias. It is predicted by the simulations that when the fraction of oxygen in the gas mixture is too high, the oxidation of the Si substrate is superior to the etching of Si by chlorine species, resulting in an etch rate close to zero as is also observed in the experiments. |
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
London |
Editor |
|
|
| |
Language |
|
Wos |
000265531000030 |
Publication Date |
2009-04-16 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0022-3727;1361-6463; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
2.588 |
Times cited |
23 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 2.588; 2009 IF: 2.083 |
|
| |
Call Number |
UA @ lucian @ c:irua:75601 |
Serial |
1731 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
de Bleecker, K.; Bogaerts, A.; Goedheer, W.; Gijbels, R. |
|
| |
Title |
Investigation of growth mechanisms of clusters in a silane discharge with the use of a fluid model |
Type |
A1 Journal article |
| |
Year |
2004 |
Publication |
IEEE transactions on plasma science |
Abbreviated Journal |
Ieee T Plasma Sci |
|
| |
Volume |
32 |
Issue |
2 |
Pages |
691-698 |
|
| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
New York, N.Y. |
Editor |
|
|
| |
Language |
|
Wos |
000222278400026 |
Publication Date |
2004-06-30 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0093-3813; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
1.052 |
Times cited |
29 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 1.052; 2004 IF: 1.042 |
|
| |
Call Number |
UA @ lucian @ c:irua:46379 |
Serial |
1732 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Bogaerts, A.; Gijbels, R.; Grozeva, M.; Sabotinov, N. |
|
| |
Title |
Investigation of laser output power saturation in the He-Cu+ IR hollow cathode discharge laser by experiments and numerical modeling |
Type |
A1 Journal article |
| |
Year |
2003 |
Publication |
Physica scripta |
Abbreviated Journal |
Phys Scripta |
|
| |
Volume |
T105 |
Issue |
|
Pages |
90-97 |
|
| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
|
Place of Publication |
Stockholm |
Editor |
|
|
| |
Language |
|
Wos |
000184344900014 |
Publication Date |
2003-07-31 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0031-8949; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
1.28 |
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 1.28; 2003 IF: 0.688 |
|
| |
Call Number |
UA @ lucian @ c:irua:44019 |
Serial |
1733 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Brammertz, G.; Oueslati, S.; Buffiere, M.; Bekaert, J.; El Anzeery, H.; Messaoud, K.B.; Sahayaraj, S.; Nuytten, T.; Koble, C.; Meuris, M.; Poortmans, J.; |
|
| |
Title |
Investigation of properties limiting efficiency in Cu2ZnSnSe4-based solar cells |
Type |
A1 Journal article |
| |
Year |
2015 |
Publication |
IEEE journal of photovoltaics |
Abbreviated Journal |
Ieee J Photovolt |
|
| |
Volume |
5 |
Issue |
5 |
Pages |
649-655 |
|
| |
Keywords |
A1 Journal article; Engineering sciences. Technology; Condensed Matter Theory (CMT) |
|
| |
Abstract |
We have investigated different nonidealities in Cu2ZnSnSe4CdSZnO solar cells with 9.7% conversion efficiency, in order to determine what is limiting the efficiency of these devices. Several nonidealities could be observed. A barrier of about 300 meV is present for electron flow at the absorberbuffer heterojunction leading to a strong crossover behavior between dark and illuminated currentvoltage curves. In addition, a barrier of about 130 meV is present at the Moabsorber contact, which could be reduced to 15 meV by inclusion of a TiN interlayer. Admittance spectroscopy results on the devices with the TiN backside contact show a defect level with an activation energy of 170 meV. Using all parameters extracted by the different characterization methods for simulations of the two-diode model including injection and recombination currents, we come to the conclusion that our devices are limited by the large recombination current in the depletion region. Potential fluctuations are present in the devices as well, but they do not seem to have a special degrading effect on the devices, besides a probable reduction in minority carrier lifetime through enhanced recombination through the band tail defects. |
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| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
|
Editor |
|
|
| |
Language |
|
Wos |
000353524800026 |
Publication Date |
2014-12-19 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
2156-3381;2156-3403; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
3.712 |
Times cited |
13 |
Open Access |
|
|
| |
Notes |
; ; |
Approved |
Most recent IF: 3.712; 2015 IF: 3.165 |
|
| |
Call Number |
c:irua:123717 |
Serial |
1734 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Tarakina, N.V.; Denisova, T.A.; Maksimova, L.G.; Baklanova, Y.V.; Tyutyunnik, A.P.; Berger, I.F.; Zubkov, V.G.; Van Tendeloo, G. |
|
| |
Title |
Investigation of stacking disorder in Li2SnO3 |
Type |
A1 Journal article |
| |
Year |
2009 |
Publication |
Zeitschrift für Kristallographie |
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
S:30 |
Pages |
375-380 |
|
| |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
A crystal structure investigation of the low temperature Li2SnO3 modification has been carried out. X-ray, neutron powder and electron diffraction data showed that this compound crystallizes in a monoclinic unit cell with parameters: a = 5.3033(2)Å, b = 9.1738(3)Å, c = 10.0195(2)Å, β ~ 100.042(2)º and has stacking disorder along the c-axis. Simulation of diffraction patterns with different stacking faults mainly reveal the presence of rotational stacking faults with a probability of about 40% . |
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| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
|
Place of Publication |
München |
Editor |
|
|
| |
Language |
|
Wos |
000271325700024 |
Publication Date |
2009-08-27 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0930-486X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
|
Times cited |
16 |
Open Access |
|
|
| |
Notes |
Iap |
Approved |
Most recent IF: NA |
|
| |
Call Number |
UA @ lucian @ c:irua:79987 |
Serial |
1735 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Kaganovich, I.; Misina, M.; Bogaerts, A.; Gijbels, R. |
|
| |
Title |
Investigation of the electron distribution functions in low pressure electron cyclotron resonance discharges |
Type |
H1 Book chapter |
| |
Year |
1999 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
543-544 |
|
| |
Keywords |
H1 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
|
|
| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
Kluwer Academic |
Place of Publication |
Dordrecht |
Editor |
|
|
| |
Language |
|
Wos |
000081413700057 |
Publication Date |
0000-00-00 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
|
Additional Links |
UA library record; WoS full record; |
|
| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: NA |
|
| |
Call Number |
UA @ lucian @ c:irua:24926 |
Serial |
1736 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Idrissi, H.; Schryvers, D. |
|
| |
Title |
Investigation of the elementary mechanisms controlling dislocation/twin boundary interactions in fcc metals and alloys : from conventional to advanced TEM characterization |
Type |
H2 Book chapter |
| |
Year |
2012 |
Publication |
|
Abbreviated Journal |
|
|
| |
Volume |
|
Issue |
|
Pages |
1213-1224 |
|
| |
Keywords |
H2 Book chapter; Electron microscopy for materials research (EMAT) |
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| |
Abstract |
|
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| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
Formatex Research Center |
Place of Publication |
S.l. |
Editor |
|
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| |
Language |
|
Wos |
|
Publication Date |
0000-00-00 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
|
ISBN |
978-84-939843-6-6 |
Additional Links |
UA library record |
|
| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: NA |
|
| |
Call Number |
UA @ lucian @ c:irua:104694 |
Serial |
1737 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Stevens, W.J.J.; Lebeau, K.; Mertens, M.; Van Tendeloo, G.; Cool, P.; Vansant, E.F. |
|
| |
Title |
Investigation of the morphology of the mesoporous SBA-16 and SBA-15 materials |
Type |
A1 Journal article |
| |
Year |
2006 |
Publication |
The journal of physical chemistry : B : condensed matter, materials, surfaces, interfaces and biophysical |
Abbreviated Journal |
J Phys Chem B |
|
| |
Volume |
110 |
Issue |
18 |
Pages |
9183-9187 |
|
| |
Keywords |
A1 Journal article; Laboratory of adsorption and catalysis (LADCA); Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
|
|
| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
|
Place of Publication |
Washington, D.C. |
Editor |
|
|
| |
Language |
|
Wos |
000237451300042 |
Publication Date |
2006-05-04 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
1520-6106;1520-5207; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
3.177 |
Times cited |
109 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 3.177; 2006 IF: 4.115 |
|
| |
Call Number |
UA @ lucian @ c:irua:58264 |
Serial |
1738 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Bogaerts, A.; Gijbels, R. |
|
| |
Title |
The ion- and atom-induced secondary electron emission yield: numerical study for the effect of clean and dirty cathode surfaces |
Type |
A1 Journal article |
| |
Year |
2002 |
Publication |
Plasma sources science and technology |
Abbreviated Journal |
Plasma Sources Sci T |
|
| |
Volume |
11 |
Issue |
|
Pages |
27-36 |
|
| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
| |
Abstract |
|
|
| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
Institute of Physics |
Place of Publication |
Bristol |
Editor |
|
|
| |
Language |
|
Wos |
000174336300003 |
Publication Date |
2002-08-25 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0963-0252;1361-6595; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
3.302 |
Times cited |
51 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 3.302; 2002 IF: 1.816 |
|
| |
Call Number |
UA @ lucian @ c:irua:40184 |
Serial |
1739 |
|
| Permanent link to this record |
| |
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| |
|
Author |
Frangis, N.; Nejim, A.; Hemment, P.L.F.; Stoemenos, J.; van Landuyt, J. |
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| |
Title |
Ion beam synthesis of β-SiC at 9500C and structural characterization |
Type |
A3 Journal article |
| |
Year |
1996 |
Publication |
Nuclear instruments and methods in physics research |
Abbreviated Journal |
|
|
| |
Volume |
B112 |
Issue |
|
Pages |
325-329 |
|
| |
Keywords |
A3 Journal article; Electron microscopy for materials research (EMAT) |
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| |
Abstract |
|
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| |
Address |
|
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| |
Corporate Author |
|
Thesis |
|
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| |
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
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| |
Language |
|
Wos |
|
Publication Date |
0000-00-00 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0167-5087 |
ISBN |
|
Additional Links |
UA library record |
|
| |
Impact Factor |
|
Times cited |
|
Open Access |
|
|
| |
Notes |
|
Approved |
no |
|
| |
Call Number |
UA @ lucian @ c:irua:15454 |
Serial |
1740 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Kalitzova, M.; Peeva, A.; Ignatova, V.; Lebedev, O.I.; Zollo, G.; Vitali, G. |
|
| |
Title |
Ion beam synthesis of Te and Bi nanoclusters in silicon: the effect of post-implantation high frequency electromagnetic field |
Type |
A1 Journal article |
| |
Year |
2006 |
Publication |
Nuclear instruments and methods in physics research: B: beam interactions with materials and atoms |
Abbreviated Journal |
Nucl Instrum Meth B |
|
| |
Volume |
242 |
Issue |
|
Pages |
209-213 |
|
| |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
|
| |
Abstract |
|
|
| |
Address |
|
|
| |
Corporate Author |
|
Thesis |
|
|
| |
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
|
| |
Language |
|
Wos |
000236225200056 |
Publication Date |
2005-09-15 |
|
| |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
| |
Series Volume |
|
Series Issue |
|
Edition |
|
|
| |
ISSN |
0168-583X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
| |
Impact Factor |
1.109 |
Times cited |
1 |
Open Access |
|
|
| |
Notes |
|
Approved |
Most recent IF: 1.109; 2006 IF: 0.946 |
|
| |
Call Number |
UA @ lucian @ c:irua:58051 |
Serial |
1741 |
|
| Permanent link to this record |
| |
|
| |
|
Author |
Frangis, N.; Nejim, A.; Hemment, P.L.F.; Stoemenos, J.; van Landuyt, J. |
|
| |
Title |
Ion beam synthesis of \beta-SiC at 950 degrees C and structural characterization |
Type |
A1 Journal article |
| |
Year |
1996 |
Publication |
Nuclear instruments and methods in physics research: B: beam interactions with materials and atoms
T2 – Symposium J on Correlated Effects in Atomic and Cluster Ion Bombardment and Implantation/Symposium C on Pushing the Limits of Ion Beam, Processing – Fr |
Abbreviated Journal |
Nucl Instrum Meth B |
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| |
Volume |
112 |
Issue |
1-4 |
Pages |
325-329 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
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Abstract |
The structure of beta-SiC formed by carbon implantation into Si at high temperatures (850-950 degrees C) at doses ranging between 0.2 X 10(18) to 1 X 10(18) cm(-2) at 200 keV, was studied by combined cross section and high resolution transmission electron microscopy (XTEM and HRTEM). Implantation was performed on (001) and (111) Si wafers. In both cases a buried beta-SiC layer was formed having the same orientation as the Si matrix. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Elsevier science bv |
Place of Publication |
Amsterdam |
Editor |
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Language |
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Wos |
A1996UW20100069 |
Publication Date |
2002-07-26 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
|
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| |
ISSN |
0168-583X; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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| |
Impact Factor |
1.124 |
Times cited |
9 |
Open Access |
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| |
Notes |
|
Approved |
no |
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| |
Call Number |
UA @ lucian @ c:irua:95886 |
Serial |
1742 |
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| Permanent link to this record |
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| |
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Author |
de Witte, H.; Conard, T.; Vandervorst, W.; Gijbels, R. |
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Title |
Ion-bombardment artifact in TOF-SIMS analysis of ZrO2/SiO2/Si stacks |
Type |
A1 Journal article |
| |
Year |
2003 |
Publication |
Applied surface science |
Abbreviated Journal |
Appl Surf Sci |
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| |
Volume |
203 |
Issue |
|
Pages |
523-526 |
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| |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
We analyzed ultra-thin ZrO2/SiO2/Si gate dielectrics under post-deposition anneals in dry O-2 at temperatures from 500 to 700 degreesC. TOF-SIMS profiling of ZrO2/SiO2/Si stacks is hampered by many sputter induced artifacts. The depletion of oxygen leads to a decrease in SIMS intensities. However, preferential sputtering is accompanied by transport of the depleted species towards the surface. Due to recoil implantation oxygen gets piled-up near the ZrO2/SiO2 interface. Either normal or radiation-enhanced diffusion transports oxygen back to the surface. Simultaneously also segregation of zirconium towards and through the interface is observed, resulting in a large zirconium tail in the underlying silicon substrate. (C) 2002 Elsevier Science B.V. All rights reserved. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Elsevier science bv |
Place of Publication |
Amsterdam |
Editor |
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Language |
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Wos |
000180527300119 |
Publication Date |
2002-12-30 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
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| |
ISSN |
0169-4332; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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| |
Impact Factor |
3.387 |
Times cited |
15 |
Open Access |
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Notes |
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Approved |
Most recent IF: 3.387; 2003 IF: 1.284 |
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Call Number |
UA @ lucian @ c:irua:51975 |
Serial |
1743 |
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| Permanent link to this record |
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Author |
van Oeffelen, L.; Van Roy, W.; Idrissi, H.; Charlier, D.; Lagae, L.; Borghs, G. |
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Title |
Ion current rectification, limiting and overlimiting conductances in nanopores |
Type |
A1 Journal article |
| |
Year |
2015 |
Publication |
PLoS ONE |
Abbreviated Journal |
Plos One |
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| |
Volume |
10 |
Issue |
10 |
Pages |
e0124171 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
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Abstract |
Previous reports on Poisson-Nernst-Planck (PNP) simulations of solid-state nanopores have focused on steady state behaviour under simplified boundary conditions. These are Neumann boundary conditions for the voltage at the pore walls, and in some cases also Donnan equilibrium boundary conditions for concentrations and voltages at both entrances of the nanopore. In this paper, we report time-dependent and steady state PNP simulations under less restrictive boundary conditions, including Neumann boundary conditions applied throughout the membrane relatively far away from the nanopore. We simulated ion currents through cylindrical and conical nanopores with several surface charge configurations, studying the spatial and temporal dependence of the currents contributed by each ion species. This revealed that, due to slow co-diffusion of oppositely charged ions, steady state is generally not reached in simulations or in practice. Furthermore, it is shown that ion concentration polarization is responsible for the observed limiting conductances and ion current rectification in nanopores with asymmetric surface charges or shapes. Hence, after more than a decade of collective research attempting to understand the nature of ion current rectification in solid-state nanopores, a relatively intuitive model is retrieved. Moreover, we measured and simulated current-voltage characteristics of rectifying silicon nitride nanopores presenting overlimiting conductances. The similarity between measurement and simulation shows that overlimiting conductances can result from the increased conductance of the electric double-layer at the membrane surface at the depletion side due to voltage-induced polarization charges. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000354916100012 |
Publication Date |
2015-05-15 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
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ISSN |
1932-6203; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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| |
Impact Factor |
2.806 |
Times cited |
11 |
Open Access |
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Notes |
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Approved |
Most recent IF: 2.806; 2015 IF: 3.234 |
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Call Number |
c:irua:126366 |
Serial |
1744 |
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| Permanent link to this record |
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Author |
Neyts, E.C.; Bogaerts, A. |
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Title |
Ion irradiation for improved graphene network formation in carbon nanotube growth |
Type |
A1 Journal article |
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Year |
2014 |
Publication |
Carbon |
Abbreviated Journal |
Carbon |
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Volume |
77 |
Issue |
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Pages |
790-795 |
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Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
Ion irradiation of carbon nanotubes very often leads to defect formation. However, we have recently shown that Ar ion irradiation in a limited energy window of 1025 eV may enhance the initial cap nucleation process, when the carbon network is in contact with the metal nanocatalyst. Here, we employ reactive molecular dynamics simulations to demonstrate that ion irradiation in a higher energy window of 1035 eV may also heal network defects after the nucleation stage through a non-metal-mediated mechanism, when the carbon network is no longer in contact with the metal nanocatalyst. The results demonstrate the possibility of beneficially utilizing ions in e.g. plasma-enhanced chemical vapour deposition of carbon nanotubes. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
Oxford |
Editor |
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Language |
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Wos |
000340689400083 |
Publication Date |
2014-06-11 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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| |
Series Volume |
|
Series Issue |
|
Edition |
|
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ISSN |
0008-6223; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
6.337 |
Times cited |
7 |
Open Access |
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Notes |
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Approved |
Most recent IF: 6.337; 2014 IF: 6.196 |
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Call Number |
UA @ lucian @ c:irua:118062 |
Serial |
1745 |
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| Permanent link to this record |
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Author |
Goossens, D.; Van 't dack, L.; Gijbels, R. |
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Title |
Ion microprobe analysis of rock-forming minerals from the Carnmenellis granite |
Type |
P3 Proceeding |
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Year |
1989 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
S.l. |
Editor |
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Language |
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Wos |
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Publication Date |
0000-00-00 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
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Call Number |
UA @ lucian @ c:irua:111514 |
Serial |
1746 |
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| Permanent link to this record |
