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Plasma hydrogenation of hydrothermally grown ZnO micropods
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SYSNO ASEP 0542442 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Plasma hydrogenation of hydrothermally grown ZnO micropods Author(s) Remeš, Zdeněk (FZU-D) RID, ORCID
Aubrechtová Dragounová, Kateřina (FZU-D) ORCID
Mičová, J. (SK)Number of authors 3 Source Title Proceedings 12th International Conference on Nanomaterials - Research & Application - Nanocon 2020. - Ostrava : Tanger Ltd., 2021 - ISSN 2694-930X - ISBN 978-80-87294-98-7 Pages s. 512-517 Number of pages 6 s. Publication form Online - E Action International Conference NANOCON 2020 /12./ Event date 21.10.2020 - 23.10.2020 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords ZnO ; micropods ; inductively coupled plasma ; optical emission spectroscopy ; photoluminescence spectroscopy ; Raman spectroscopy ; infrared absorption spectroscopy Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GC19-02858J GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000664505500087 EID SCOPUS 85106064565 DOI 10.37904/nanocon.2020.3777 Annotation The hydrothermally grown ZnO micropods have been placed on grounded stainless-steel holder and exposed to an inductively coupled plasma (ICP) monitored in-situ by optical emission spectroscopy (OES). OES shows the immediate release of oxygen during Ar ion bombardment. The prolonged exposure to hydrogen plasma leads to deterioration of the optical properties as well. The exposure, rf power and hydrogen pressure have been optimized to enhance UV-photoluminescence peak at the wavelength 384 nm related to surface bounded excitons and reduce the defect-related photoluminescence in red spectral range. The strong UV photoluminescence appears just after 1 minute of plasma hydrogenation in a radio frequency plasma discharge with power density 40 W/dm3 and hydrogen pressure 17 Pa. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022
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