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Electron affinity of B-doped nanocrystalline diamonds
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SYSNO ASEP 0486997 Document Type A - Abstract R&D Document Type O - Ostatní Title Electron affinity of B-doped nanocrystalline diamonds Author(s) Romanyuk, Olexandr (FZU-D) RID, ORCID
Bartoš, Igor (FZU-D) RID, ORCID
Gordeev, Ivan (FZU-D) ORCID
Artemenko, Anna (FZU-D) RID, ORCID
Jiříček, Petr (FZU-D) RID, ORCID, SAI
Marton, M. (SK)
Kromka, Alexander (FZU-D) RID, ORCID, SAINumber of authors 7 Source Title Nanoworkshop 2017- Book of abstracts of the International Workshop on Polymer Metal Nanocomposites /8./. - Praha, 2017 - ISBN 978-80-7378-347-1
P6Number of pages 1 s. Publication form Online - E Action Nanoworkshop 2017 - International Workshop on Polymer Metal Nanocomposites /8./ Event date 12.09.2017 - 15.09.2017 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords negative electron affinity ; positive electron affinity ; nanocrystalline diamond Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GBP108/12/G108 GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 Annotation Electron affinity in semiconductors is defined as an energy distance from the conduction band minimum (CBM) to the vacuum level. Usually, the vacuum level is above the CBM known as the positive electron affinity (PEA). In case of negative electron affinity (NEA), the CBM is above the vacuum level. Diamond electron affinity (DEA) can be tuned by its surface termination. Here, the dependence of DEA on a) boron doping and b) surface termination is studied by ultraviolet photoelectron spectroscopy (UPS). Boron doped nanocrystalline diamond films (B-NCD) were grown by double bias enhanced hot filament chemical vapor deposition on Si substrate using the gas mixture of trimethylborane and CH4 in H2. The H-termination was done by hydrogen microwave plasma treatment. It was found that, the electron affinity of B-NCD/H surfaces varies with the boron concentration. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
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