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\bibitem{Sankaran_etal2018} {\textquotedblleft}\textit{Fabrication, microstructure, and enhanced thermionic electron emission properties of vertically aligned nitrogen-doped nanocrystalline diamond nanorods}{\textquotedblright}. Sankaran KJ, Deshmukh S, Korneychuk S, Yeh C-J, Thomas JP, Drijkoningen S, Pobedinskas P, Van Bael MK, Verbeeck J, Leou K-C, Leung K-T, Roy SS, Lin I-N, Haenen K, MRS communications \textbf{8}, 1311 (2018).   http://doi.org/10.1557/MRC.2018.158

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