Records |
Author |
Neyts, E.; Eckert, M.; Mao, M.; Bogaerts, A. |
Title |
Numerical simulation of hydrocarbon plasmas for nanoparticle formation and the growth of nanostructured thin films |
Type |
A1 Journal article |
Year |
2009 |
Publication |
Plasma physics and controlled fusion |
Abbreviated Journal |
Plasma Phys Contr F |
Volume |
51 |
Issue |
|
Pages |
124034,1-124034,8 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
This paper outlines two different numerical simulation approaches, carried out by our group, used for describing hydrocarbon plasmas in their applications for either nanoparticle formation in the plasma or the growth of nanostructured thin films, such as nanocrystalline diamond (NCD). A plasma model based on the fluid approach is utilized to study the initial mechanisms giving rise to nanoparticle formation in an acetylene plasma. The growth of NCD is investigated by molecular dynamics simulations, describing the interaction of the hydrocarbon species with a substrate. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Oxford |
Editor |
|
Language |
|
Wos |
000271940800045 |
Publication Date |
2009-11-12 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0741-3335;1361-6587; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.392 |
Times cited |
2 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.392; 2009 IF: 2.409 |
Call Number |
UA @ lucian @ c:irua:79132 |
Serial |
2405 |
Permanent link to this record |
|
|
|
Author |
Herrebout, D.; Bogaerts, A.; Gijbels, R.; Goedheer, W.J.; Vanhulsel, A. |
Title |
A one-dimensional fluid model for an acetylene rf discharge: a study of the plasma chemistry |
Type |
A1 Journal article |
Year |
2003 |
Publication |
IEEE transactions on plasma science |
Abbreviated Journal |
Ieee T Plasma Sci |
Volume |
31 |
Issue |
|
Pages |
659-664 |
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 |
000184833400022 |
Publication Date |
2003-08-21 |
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 |
26 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 1.052; 2003 IF: 0.840 |
Call Number |
UA @ lucian @ c:irua:44021 |
Serial |
2462 |
Permanent link to this record |
|
|
|
Author |
Bultinck, E.; Mahieu, S.; Depla, D.; Bogaerts, A. |
Title |
Particle-in-cell/Monte Carlo collisions model for the reactive sputter deposition of nitride layers |
Type |
A1 Journal article |
Year |
2009 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
Volume |
6 |
Issue |
S:1 |
Pages |
S784-S788 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
A 2d3v Particle-in-cell/Monte Carlo collisions (PIC/MCC) model was constructed for an Ar/N2 reactive gas mixture in a magnetron discharge. A titanium target was used, in order to study the sputter deposition of a TiNx thin film. Cathode currents and voltages were calculated self-consistently and compared with experiments. Also, ion fluxes to the cathode were calculated, which cause sputtering of the target. The sputtered atom fluxes from the target, and to the substrate were calculated, in order to visualize the deposition of the TiNx film. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Weinheim |
Editor |
|
Language |
|
Wos |
000272302900149 |
Publication Date |
2009-09-16 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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 |
2 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.846; 2009 IF: 4.037 |
Call Number |
UA @ lucian @ c:irua:79364 |
Serial |
2558 |
Permanent link to this record |
|
|
|
Author |
Schweigert, I.V.; Schweigert, V.A.; Peeters, F.M. |
Title |
Perturbation of collisional plasma flow around a charged dust particle: kinetic analysis |
Type |
A1 Journal article |
Year |
2005 |
Publication |
Physics of plasmas |
Abbreviated Journal |
Phys Plasmas |
Volume |
12 |
Issue |
11 |
Pages |
113501,1-9 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Woodbury, N.Y. |
Editor |
|
Language |
|
Wos |
000233569600046 |
Publication Date |
2005-11-07 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1070-664X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.115 |
Times cited |
15 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.115; 2005 IF: 2.182 |
Call Number |
UA @ lucian @ c:irua:56048 |
Serial |
2575 |
Permanent link to this record |
|
|
|
Author |
Kolev, I.; Bogaerts, A. |
Title |
PIC – MCC numerical simulation of a DC planar magnetron |
Type |
A1 Journal article |
Year |
2006 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
Volume |
3 |
Issue |
2 |
Pages |
127-134 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Weinheim |
Editor |
|
Language |
|
Wos |
000235628300005 |
Publication Date |
2006-02-02 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1612-8850;1612-8869; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.846 |
Times cited |
27 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.846; 2006 IF: 2.298 |
Call Number |
UA @ lucian @ c:irua:56077 |
Serial |
2621 |
Permanent link to this record |
|
|
|
Author |
Georgieva, V.; Bogaerts, A. |
Title |
Plasma characteristics of an Ar/CF4/N2 discharge in an asymmetric dual frequency reactor: numerical investigation by a PIC/MC model |
Type |
A1 Journal article |
Year |
2006 |
Publication |
Plasma sources science and technology |
Abbreviated Journal |
Plasma Sources Sci T |
Volume |
15 |
Issue |
|
Pages |
368-377 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
Institute of Physics |
Place of Publication |
Bristol |
Editor |
|
Language |
|
Wos |
000240655500010 |
Publication Date |
2006-04-28 |
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 |
35 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 3.302; 2006 IF: 2.346 |
Call Number |
UA @ lucian @ c:irua:57550 |
Serial |
2630 |
Permanent link to this record |
|
|
|
Author |
Van Gaens, W.; Bogaerts, A. |
Title |
Reaction pathways of biomedically active species in an Ar plasma jet |
Type |
A1 Journal article |
Year |
2014 |
Publication |
Plasma sources science and technology |
Abbreviated Journal |
Plasma Sources Sci T |
Volume |
23 |
Issue |
3 |
Pages |
035015-35027 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
In this paper we analyse the gas phase production and loss pathways for several biomedically active species, i.e. N2(A), O, O3, O2(a), N, H, HO2, OH, NO, NO2, N2O5, H2O2, HNO2 and HNO3, in an argon plasma jet flowing into an open humid air atmosphere. For this purpose, we employ a zero-dimensional reaction kinetics model to mimic the typical experimental conditions by fitting several parameters to experimentally measured values. These include ambient air diffusion, the gas temperature profile and power deposition along the jet effluent. We focus in detail on how the pathways of the biomedically active species change as a function of the position in the effluent, i.e. inside the discharge device, active plasma jet effluent and afterglow region far from the nozzle. Moreover, we demonstrate how the reaction kinetics and species production are affected by different ambient air humidities, total deposited power into the plasma and gas temperature along the jet. It is shown that the dominant pathways can drastically change as a function of the distance from the nozzle exit or experimental conditions. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
Institute of Physics |
Place of Publication |
Bristol |
Editor |
|
Language |
|
Wos |
000337891900017 |
Publication Date |
2014-05-22 |
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 |
34 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 3.302; 2014 IF: 3.591 |
Call Number |
UA @ lucian @ c:irua:117075 |
Serial |
2820 |
Permanent link to this record |
|
|
|
Author |
Bogaerts, A.; Yusupov, M.; Van der Paal, J.; Verlackt, C.C.W.; Neyts, E.C. |
Title |
Reactive molecular dynamics simulations for a better insight in plasma medicine |
Type |
A1 Journal article |
Year |
2014 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
Volume |
11 |
Issue |
12 |
Pages |
1156-1168 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
In this review paper, we present several examples of reactive molecular dynamics simulations, which contribute to a better understanding of the underlying mechanisms in plasma medicine on the atomic scale. This includes the interaction of important reactive oxygen plasma species with the outer cell wall of both gram-positive and gram-negative bacteria, and with lipids present in human skin. Moreover, as most biomolecules are surrounded by a liquid biofilm, the behavior of these plasma species in a liquid (water) layer is presented as well. Finally, a perspective for future atomic scale modeling studies is given, in the field of plasma medicine in general, and for cancer treatment in particular. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Weinheim |
Editor |
|
Language |
|
Wos |
000346034700007 |
Publication Date |
2014-09-29 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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 |
22 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.846; 2014 IF: 2.453 |
Call Number |
UA @ lucian @ c:irua:121269 |
Serial |
2822 |
Permanent link to this record |
|
|
|
Author |
de Bleecker, K.; Bogaerts, A.; Goedheer, W. |
Title |
Role of the thermophoretic force on the transport of nanoparticles in dusty silane plasmas |
Type |
A1 Journal article |
Year |
2005 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
71 |
Issue |
|
Pages |
066405,1-9 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000230275000081 |
Publication Date |
2005-06-21 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
25 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2005 IF: 2.418 |
Call Number |
UA @ lucian @ c:irua:52907 |
Serial |
2927 |
Permanent link to this record |
|
|
|
Author |
Berezhnoi, S.; Kaganovich, I.; Misina, M.; Bogaerts, A.; Gijbels, R. |
Title |
Semianalytical description of nonlocal secondary electrons in a radio-frequency capacitively coupled plasma at intermediate pressures |
Type |
A1 Journal article |
Year |
1999 |
Publication |
IEEE transactions plasma science |
Abbreviated Journal |
Ieee T Plasma Sci |
Volume |
27 |
Issue |
|
Pages |
1339-1347 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Wos |
000083453000014 |
Publication Date |
2002-08-24 |
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 |
7 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 1.052; 1999 IF: 1.085 |
Call Number |
UA @ lucian @ c:irua:28314 |
Serial |
2980 |
Permanent link to this record |
|
|
|
Author |
Cai, H.-bo; Yu, W.; Zhu, S.-ping; Zheng, C.-yang; Cao, L.-hua; Li, B.; Chen, Z.Y.; Bogaerts, A. |
Title |
Short-pulse laser absorption in very steep plasma density gradients |
Type |
A1 Journal article |
Year |
2006 |
Publication |
Physics of plasmas |
Abbreviated Journal |
Phys Plasmas |
Volume |
13 |
Issue |
|
Pages |
094504,1-4 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Woodbury, N.Y. |
Editor |
|
Language |
|
Wos |
000240877800057 |
Publication Date |
2006-09-15 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1070-664X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.115 |
Times cited |
17 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.115; 2006 IF: 2.258 |
Call Number |
UA @ lucian @ c:irua:59375 |
Serial |
2995 |
Permanent link to this record |
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|
|
Author |
Liu, Y.H.; Chen, Z.Y.; Huang, F.; Yu, M.Y.; Wang, L.; Bogaerts, A. |
Title |
Simulation of disk- and band-like voids in dusty plasma systems |
Type |
A1 Journal article |
Year |
2006 |
Publication |
Physics of plasmas |
Abbreviated Journal |
Phys Plasmas |
Volume |
13 |
Issue |
|
Pages |
052110,1-6 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Woodbury, N.Y. |
Editor |
|
Language |
|
Wos |
000237943000011 |
Publication Date |
2006-05-12 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1070-664X; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.115 |
Times cited |
20 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.115; 2006 IF: 2.258 |
Call Number |
UA @ lucian @ c:irua:57858 |
Serial |
3011 |
Permanent link to this record |
|
|
|
Author |
Tinck, S.; Bogaerts, A.; Shamiryan, D. |
Title |
Simultaneous etching and deposition processes during the etching of silicon with a Cl2/O2/Ar inductively coupled plasma |
Type |
A1 Journal article |
Year |
2011 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
Volume |
8 |
Issue |
6 |
Pages |
490-499 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
In this article, surface processes occurring during the etching of Si with a Cl2/O2/Ar plasma are investigated by means of experiments and modeling. Cl2-based plasmas are commonly used to etch silicon, while a small fraction of O2 is added to protect the sidewalls from lateral etching during the shallow trench isolation process. When the oxygen fraction exceeds a critical value, the wafer surface process changes from an etching regime to a deposition regime, drastically reducing the etch rate. This effect is commonly referred to as the etch stop phenomenon. To gain better understanding of this mechanism, the oxygen fraction is varied in the gas mixture and special attention is paid to the effects of oxygen and of the redeposition of non-volatile etched species on the overall etch/deposition process. It is found that, when the O2 flow is increased, the etch process changes from successful etching to the formation of a rough surface, and eventually to the actual growth of an oxide layer which completely blocks the etching of the underlying Si. The size of this etch stop island was found to increase as a function of oxygen flow, while its thickness was dependent on the amount of Si etched. This suggests that the growth of the oxide layer mainly depends on the redeposition of non-volatile etch products. The abrupt change in the etch rate as a function of oxygen fraction was not found back in the oxygen content of the plasma, suggesting the competitive nature between oxidation and chlorination at the wafer. Finally, the wafer and reactor wall compositions were investigated by modeling and it was found that the surface rapidly consisted mainly of SiO2 when the O2 flow was increased above about 15 sccm. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Weinheim |
Editor |
|
Language |
|
Wos |
000292116800003 |
Publication Date |
2011-03-29 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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 |
5 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.846; 2011 IF: 2.468 |
Call Number |
UA @ lucian @ c:irua:90926 |
Serial |
3014 |
Permanent link to this record |
|
|
|
Author |
Nelissen, K.; Matulis, A.; Partoens, B.; Kong, M.; Peeters, F.M. |
Title |
Spectrum of classical two-dimensional Coulomb clusters |
Type |
A1 Journal article |
Year |
2006 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
73 |
Issue |
1 |
Pages |
016607,1-7 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000235008800095 |
Publication Date |
2006-01-17 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
33 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2006 IF: 2.438 |
Call Number |
UA @ lucian @ c:irua:56611 |
Serial |
3075 |
Permanent link to this record |
|
|
|
Author |
Kozák, T.; Bogaerts, A. |
Title |
Splitting of CO2 by vibrational excitation in non-equilibrium plasmas : a reaction kinetics model |
Type |
A1 Journal article |
Year |
2014 |
Publication |
Plasma sources science and technology |
Abbreviated Journal |
Plasma Sources Sci T |
Volume |
23 |
Issue |
4 |
Pages |
045004 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
We present a zero-dimensional kinetic model of CO2 splitting in non-equilibrium plasmas. The model includes a description of the CO2 vibrational kinetics (25 vibrational levels up to the dissociation limit of the molecule), taking into account state-specific VT and VV relaxation reactions and the effect of vibrational excitation on other chemical reactions. The model is applied to study the reaction kinetics of CO2 splitting in an atmospheric-pressure dielectric barrier discharge (DBD) and in a moderate-pressure microwave discharge. The model results are in qualitative agreement with published experimental works. We show that the CO2 conversion and its energy efficiency are very different in these two types of discharges, which reflects the important dissociation mechanisms involved. In the microwave discharge, excitation of the vibrational levels promotes efficient dissociation when the specific energy input is higher than a critical value (2.0 eV/molecule under the conditions examined). The calculated energy efficiency of the process has a maximum of 23%. In the DBD, vibrationally excited levels do not contribute significantly to the dissociation of CO2 and the calculated energy efficiency of the process is much lower (5%). |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
Institute of Physics |
Place of Publication |
Bristol |
Editor |
|
Language |
|
Wos |
000345761500014 |
Publication Date |
2014-06-17 |
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 |
170 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 3.302; 2014 IF: 3.591 |
Call Number |
UA @ lucian @ c:irua:117398 |
Serial |
3108 |
Permanent link to this record |
|
|
|
Author |
Ferreira, W.P.; Partoens, B.; Peeters, F.M.; Farias, G.A. |
Title |
Structural phase transitions and unusual melting behavior in a classical two-dimensional Coulomb bound cluster |
Type |
A1 Journal article |
Year |
2005 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
71 |
Issue |
|
Pages |
021501,1-4 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000228245700023 |
Publication Date |
2005-02-09 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
8 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2005 IF: 2.418 |
Call Number |
UA @ lucian @ c:irua:62445 |
Serial |
3251 |
Permanent link to this record |
|
|
|
Author |
Apolinario, S.W.S.; Partoens, B.; Peeters, F.M. |
Title |
Structure and spectrum of anisotropically confined two-dimensional clusters with logarithmic interaction |
Type |
A1 Journal article |
Year |
2005 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
72 |
Issue |
|
Pages |
046122,1-7 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
We studied the structural and spectral properties of a classical system consisting of a finite number of particles, moving in two dimensions, and interacting through a repulsive logarithmic potential and held together by an anisotropic harmonic potential. Increasing the anisotropy of the confinement potential can drive the system from a two-dimensional (2D) to a one-dimensional (1D) configuration. This change occurs through a sequence of structural transitions of first and second order which are reflected in the normal mode frequencies. Our results of the ground state configurations are compared with recent experiments and we obtained a satisfactory agreement. The transition from the 1D line structure to the 2D structure occurs through a zigzag transition which is of second order. We found analytical expressions for the eigenfrequencies before the zigzag transition, which allowed us to obtain an analytical expression for the anisotropy parameter at which the zigzag transition occurs as a function of the number of particles in the system. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000232931200034 |
Publication Date |
2005-10-18 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
22 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2005 IF: 2.418 |
Call Number |
UA @ lucian @ c:irua:62448 |
Serial |
3295 |
Permanent link to this record |
|
|
|
Author |
Kong, M.; Partoens, B.; Matulis, A.; Peeters, F.M. |
Title |
Structure and spectrum of two-dimensional clusters confined in a hard wall potential |
Type |
A1 Journal article |
Year |
2004 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
69 |
Issue |
|
Pages |
036412,1-10 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000220729400077 |
Publication Date |
2004-04-01 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
42 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2004 IF: NA |
Call Number |
UA @ lucian @ c:irua:62442 |
Serial |
3298 |
Permanent link to this record |
|
|
|
Author |
Yang, W.; Nelissen, K.; Kong, M.; Zeng, Z.; Peeters, F.M. |
Title |
Structure of binary colloidal systems confined in a quasi-one-dimensional channel |
Type |
A1 Journal article |
Year |
2009 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
79 |
Issue |
4 |
Pages |
041406,1-041406,6 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
The structural properties of a binary colloidal quasi-one-dimensional system confined in a narrow channel are investigated through modified Monte Carlo simulations. Two species of particles with different magnetic moment interact through a repulsive dipole-dipole force are confined in a quasi-one-dimensional channel. The impact of three decisive parameters (the density of particles, the magnetic-moment ratio, and the fraction between the two species) on the transition from disordered phase to crystal-like phases and the transitions among the different mixed phases are summarized in a phase diagram. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000265941300077 |
Publication Date |
2009-04-23 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
11 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2009 IF: 2.400 |
Call Number |
UA @ lucian @ c:irua:77021 |
Serial |
3308 |
Permanent link to this record |
|
|
|
Author |
Liu, Y.H.; Chen, Z.Y.; Yu, M.Y.; Wang, L.; Bogaerts, A. |
Title |
Structure of multispecies charged particles in a quadratic trap |
Type |
A1 Journal article |
Year |
2006 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
73 |
Issue |
|
Pages |
047402,1-4 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000237146800099 |
Publication Date |
2006-04-17 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
25 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2006 IF: 2.438 |
Call Number |
UA @ lucian @ c:irua:57859 |
Serial |
3312 |
Permanent link to this record |
|
|
|
Author |
Cao, L.-H.; Yu, W.; Xu, H.; Zheng, C.-Y.; Liu, Z.-J.; Li, B.; Bogaerts, A. |
Title |
Terahertz radiation from oscillating electrons in laser-induced wake fields |
Type |
A1 Journal article |
Year |
2004 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
70 |
Issue |
|
Pages |
046408,1-7 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
Strong terahertz (1THz=1012Hz) radiation can be generated by the electron oscillation in fs-laser-induced wake fields. The interaction of a fs-laser pulse with a low-density plasma layer is studied in detail using numerical simulations. The spatial distribution and temporal evolution of terahertz electron current developed in a low-density plasma layer are presented, which enables us to calculate the intensity distribution of THz radiation. It is shown that laser and plasma parameters, such as laser intensity, pulse width, and background plasma density, are of key importance to the process. The optimum condition for wake-field excitation and terahertz emission is discussed upon the simulation results. Radiation peaked at 6.4 THz, with 900 fs duration and 9% bandwidth, can be generated in a plasma of density 5×1017cm−3. It turns out that the maximum radiation intensity scales as n03a04 when wake field is resonantly excited, where n0 and a0 are, respectively, the plasma density and the normalized field amplitude of the laser pulse. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000225689600086 |
Publication Date |
2004-10-14 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1539-3755;1550-2376; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
9 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2004 IF: NA |
Call Number |
UA @ lucian @ c:irua:49818 |
Serial |
3509 |
Permanent link to this record |
|
|
|
Author |
Kong, M.; Partoens, B.; Peeters, F.M. |
Title |
Topological defects and nonhomogeneous melting of large two-dimensional Coulomb clusters |
Type |
A1 Journal article |
Year |
2003 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
67 |
Issue |
2 |
Pages |
021608,1-8 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000181520200051 |
Publication Date |
2003-02-28 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1063-651X;1095-3787; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
45 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2003 IF: 2.202 |
Call Number |
UA @ lucian @ c:irua:62441 |
Serial |
3677 |
Permanent link to this record |
|
|
|
Author |
Kong, M.; Partoens, B.; Peeters, F.M. |
Title |
Transition between ground state and metastable states in classical two-dimensional atoms |
Type |
A1 Journal article |
Year |
2002 |
Publication |
Physical review : E : statistical physics, plasmas, fluids, and related interdisciplinary topics |
Abbreviated Journal |
Phys Rev E |
Volume |
65 |
Issue |
4 |
Pages |
046602,1-13 |
Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Lancaster, Pa |
Editor |
|
Language |
|
Wos |
000175146600036 |
Publication Date |
2002-07-27 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1063-651X;1095-3787; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.366 |
Times cited |
51 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.366; 2002 IF: 2.397 |
Call Number |
UA @ lucian @ c:irua:62440 |
Serial |
3697 |
Permanent link to this record |
|
|
|
Author |
Neyts, E.C.; Bal, K.M. |
Title |
Effect of electric fields on plasma catalytic hydrocarbon oxidation from atomistic simulations |
Type |
A1 Journal article |
Year |
2017 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
Volume |
14 |
Issue |
6 |
Pages |
e1600158 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
The catalytic oxidative dehydrogenation of hydrocarbons is an industrially important process, in which selectivity is a key issue. We here investigate the conversion of methanol to formaldehyde on a vanadia surface employing long timescale simulations, reaching a time scale of seconds. In particular, we compare the thermal process to the case where an additional external electric field is applied, as would be the case in a direct plasma-catalysis setup. We find that the electric field influences the retention time of the molecules at the catalyst surface. These simulations provide an atomic scale insight in the thermal catalytic oxidative dehydrogenation process, and in how an external electric field may affect this process. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Weinheim |
Editor |
|
Language |
|
Wos |
000403699900013 |
Publication Date |
2016-11-08 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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 |
2 |
Open Access |
Not_Open_Access |
Notes |
|
Approved |
Most recent IF: 2.846 |
Call Number |
UA @ lucian @ c:irua:144210 |
Serial |
4647 |
Permanent link to this record |
|
|
|
Author |
Fridman, A.; Lin, A.; Miller, V.; Bekeschus, S.; Wende, K.; Weltmann, K.-D. |
Title |
The plasma treatment unit : an attempt to standardize cold plasma treatment for defined biological effects |
Type |
A1 Journal article |
Year |
2018 |
Publication |
Plasma medicine |
Abbreviated Journal |
|
Volume |
8 |
Issue |
2 |
Pages |
195-201 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
Plasma bioscience and medicine are both rapidly growing fields. Their aim is to utilize cold physical plasmas for desired biological outcomes in medicine, biotechnology, agriculture, and general hygienic purposes. Great success has been achieved in many applications with individually designed plasma sources and plasma parameters. Although lab and application-specific tuning of plasmas is a great advantage of this technology, standardized units to define plasma treatments are required to facilitate comparison of the effects found by different researchers who do not use the same plasma sources. By drawing conclusions from over a century of plasma biomedical research, we propose that all researchers adopt the use of a standardized value, the plasma treatment unit (PTU), to describe the biological effects of different cold plasma sources and treatment regimens. It quantifies a key plasma effector in biological systems as an indicator and may provide the foundation for an analogous and clinically relevant unit in the future. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Wos |
|
Publication Date |
2018-06-13 |
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 |
Not_Open_Access |
Notes |
|
Approved |
Most recent IF: NA |
Call Number |
UA @ lucian @ c:irua:155652 |
Serial |
5123 |
Permanent link to this record |
|
|
|
Author |
Bekeschus, S.; Lin, A.; Fridman, A.; Wende, K.; Weltmann, K.-D.; Miller, V. |
Title |
A comparison of floating-electrode DBD and kINPen jet : plasma parameters to achieve similar growth reduction in colon cancer cells under standardized conditions |
Type |
A1 Journal article |
Year |
2018 |
Publication |
Plasma chemistry and plasma processing |
Abbreviated Journal |
Plasma Chem Plasma P |
Volume |
38 |
Issue |
1 |
Pages |
1-12 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
A comparative study of two plasma sources (floating-electrode dielectric barrier discharge, DBD, Drexel University; atmospheric pressure argon plasma jet, kINPen, INP Greifswald) on cancer cell toxicity was performed. Cell culture protocols, cytotoxicity assays, and procedures for assessment of hydrogen peroxide (H2O2) were standardized between both labs. The inhibitory concentration 50 (IC50) and its corresponding H2O2 deposition was determined for both devices. For the DBD, IC50 and H2O2 generation were largely dependent on the total energy input but not pulsing frequency, treatment time, or total number of cells. DBD cytotoxicity could not be replicated by addition of H2O2 alone and was inhibited by larger amounts of liquid present during the treatment. Jet plasma toxicity depended on peroxide generation as well as total cell number and amount of liquid. Thus, the amount of liquid present during plasma treatment in vitro is key in attenuating short-lived species or other physical effects from plasmas. These in vitro results suggest a role of liquids in or on tissues during plasma treatment in a clinical setting. Additionally, we provide a platform for correlation between different plasma sources for a predefined cellular response. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
New York |
Editor |
|
Language |
|
Wos |
000419479000001 |
Publication Date |
2017-09-06 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0272-4324 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.355 |
Times cited |
12 |
Open Access |
OpenAccess |
Notes |
|
Approved |
Most recent IF: 2.355 |
Call Number |
UA @ lucian @ c:irua:155653 |
Serial |
5084 |
Permanent link to this record |
|
|
|
Author |
Wang, L.; Wen, D.-Q.; Zhang, Q.-Z.; Song, Y.-H.; Zhang, Y.-R.; Wang, Y.-N. |
Title |
Disruption of self-organized striated structure induced by secondary electron emission in capacitive oxygen discharges |
Type |
A1 Journal article |
Year |
2019 |
Publication |
Plasma sources science and technology |
Abbreviated Journal |
Plasma Sources Sci T |
Volume |
28 |
Issue |
5 |
Pages |
055007 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
Self-organized striated structure has been observed experimentally and numerically in CF4 plasmas in radio-frequency capacitively coupled plasmas recently (Liu et al 2016 Phys. Rev. Lett. 116 255002). In this work, the striated structure is investigated in a capacitively coupled oxygen discharge with the introduction of the effect from the secondary electron emission, based on a particle-in-cell/Monte Carlo collision model. As we know, the transport of positive and negative ions plays a key role in the formation of striations in electronegative gases, for which, the electronegativity needs to be large enough. As the secondary electron emission increases, electrons in the sheaths gradually contribute more ionization to the discharge. Meanwhile, the increase of the electron density, especially in the plasma bulk, leads to an increased electrical conductivity and a reduced bulk electric field, which would shield the ions' mobility. These changes result in enlarged striation gaps. And then, with more emitted electrons, obvious disruption of the striations is observed accompanied with a transition of electron heating mode. Due to the weakened field, the impact ionization in the plasma bulk is attenuated, compared with the enhanced ionization caused by secondary electrons. This would lead to the electron heating mode transition from striated (STR) mode to gamma-mode. Besides, our investigation further reveals that gamma-mode is more likely to dominate the discharge under high gas pressures or driving voltages. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Wos |
000467827800001 |
Publication Date |
2019-04-09 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0963-0252 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
3.302 |
Times cited |
2 |
Open Access |
Not_Open_Access: Available from 13.05.2020
|
Notes |
|
Approved |
Most recent IF: 3.302 |
Call Number |
UA @ admin @ c:irua:160365 |
Serial |
5270 |
Permanent link to this record |
|
|
|
Author |
Van der Paal, J.; Fridman, G.; Bogaerts, A. |
Title |
Ceramide cross-linking leads to pore formation: Potential mechanism behind CAP enhancement of transdermal drug delivery |
Type |
A1 Journal article |
Year |
2019 |
Publication |
Plasma processes and polymers |
Abbreviated Journal |
Plasma Process Polym |
Volume |
16 |
Issue |
16 |
Pages |
1900122 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
In recent years, cold atmospheric plasma (CAP) has been proposed as a novel method to enhance transdermal drug delivery, while avoiding tissue damage. However, the underlying mechanism for the increasing skin permeability upon CAP treatment is still undefined. We propose a mechanism in which CAP-generated reactive species induce cross-linking of skin lipids, leading to the generation of nanopores, thereby facilitating the permeation of drug molecules. Molecular dynamics simulations support this proposed mechanism. Furthermore, our results indicate that to achieve maximum enhancement of the permeability, the optimal treatment will depend on the exact lipid composition of the skin, as well as on the CAP source used. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Wos |
000479747500001 |
Publication Date |
2019-07-30 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
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 |
|
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.846 |
Call Number |
UA @ admin @ c:irua:161874 |
Serial |
6287 |
Permanent link to this record |
|
|
|
Author |
Sun, J.-Y.; Wen, D.-Q.; Zhang, Q.-Z.; Liu, Y.-X.; Wang, Y.-N. |
Title |
The effects of electron surface interactions in geometrically symmetric capacitive RF plasmas in the presence of different electrode surface materials |
Type |
A1 Journal article |
Year |
2019 |
Publication |
Physics of plasmas |
Abbreviated Journal |
Phys Plasmas |
Volume |
26 |
Issue |
6 |
Pages |
063505 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
Particle-in-cell/Monte Carlo collision (PIC/MCC) simulations are performed to investigate the asymmetric secondary electron emission (SEE) effects when electrons strike two different material electrodes in low pressure capacitively coupled plasmas (CCPs). To describe the electron-surface interactions, a realistic model, considering the primary electron impact energy and angle, as well as the corresponding surface property-dependent secondary electron yields, is employed in PIC/MCC simulations. In this model, three kinds of electrons emitted from the surface are considered: (i) elastically reflected electrons, (ii) inelastically backscattered electrons, and (iii) electron induced secondary electrons (SEs, i.e., delta-electrons). Here, we examined the effects of electron-surface interactions on the ionization dynamics and plasma characteristics of an argon discharge. The discharge is driven by a voltage source of 13.56MHz with amplitudes in the range of 200-2000V. The grounded electrode material is copper (Cu) for all cases, while the powered electrode material is either Cu or silicon dioxide (SiO2). The simulations reveal that the electron impact-induced SEE is an essential process at low pressures, especially at high voltages. Different electrode materials result in an asymmetric response of SEE. Depending on the instantaneous local sheath potential and the phase of the SEE, these SEs either are reflected by the opposite sheath or strike the electrode surface, where they can induce delta-electrons upon their residual energies. It is shown that highly energetic delta-electrons contribute significantly to the ionization rate and a self-bias forms when the powered electrode material is assumed to be made of SiO2. Complex dynamics is observed due to the multiple electron-surface interaction processes and asymmetric yields of SEs in CCPs. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Wos |
000474440600043 |
Publication Date |
2019-06-06 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1070-664x |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.115 |
Times cited |
1 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.115 |
Call Number |
UA @ admin @ c:irua:161353 |
Serial |
6327 |
Permanent link to this record |
|
|
|
Author |
Liang, Y.-S.; Xue, C.; Zhang, Y.-R.; Wang, Y.-N. |
Title |
Investigation of active species in low-pressure capacitively coupled N-2/Ar plasmas |
Type |
A1 Journal article |
Year |
2021 |
Publication |
Physics Of Plasmas |
Abbreviated Journal |
Phys Plasmas |
Volume |
28 |
Issue |
1 |
Pages |
013510 |
Keywords |
A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
Abstract |
In this paper, a self-consistent fluid model is developed focusing on the plasma parameters in capacitively coupled 20% N 2-80% Ar discharges. Measurements of ion density are performed with the help of a floating double probe, and the emission intensities from Ar(4p) and N 2 ( B ) transitions are detected by an optical emission spectroscopy to estimate their relative densities. The consistency between the numerical and experimental results confirms the reliability of the simulation. Then the plasma characteristics, specifically the reaction mechanisms of active species, are analyzed under various voltages. The increasing voltage leads to a monotonous increase in species density, whereas a less homogeneous radial distribution is observed at a higher voltage. Due to the high concentration of Ar gas, Ar + becomes the main ion, followed by the N 2 +</mml:msubsup> ion. Besides the electron impact ionization of neutrals, the charge transfer processes of Ar +/ N 2 and N 2 +</mml:msubsup>/Ar are found to have an impact on the ionic species. The results indicate that adopting the lower charge transfer reaction rate coefficients weakens the Ar + ion density and yields a higher N 2 +</mml:msubsup> ion density. However, the effect on the species spatial distributions and other species densities is limited. As for the excited-state species, the electron impact excitation of background gases remains overwhelming in the formation of Ar(4p), N 2 ( B ), and N 2 ( a ' ), whereas the <mml:msub> N 2 ( A ) molecules are mainly formed by the decay of <mml:msub> N 2 ( B ). In addition, the dissociation of <mml:msub> N 2 collided by excited-state Ar atoms dominates the N generation, which are mostly depleted to produce N + ions. |
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 |
000629931300002 |
Publication Date |
2021-01-22 |
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 |
1070-664x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.115 |
Times cited |
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Open Access |
Not_Open_Access |
Notes |
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Approved |
Most recent IF: 2.115 |
Call Number |
UA @ admin @ c:irua:177669 |
Serial |
6767 |
Permanent link to this record |