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Hydrogen detection with semimetal graphite-ZnO (InP,GaN) Schottky diodes
- 1.0396812 - ÚFE 2014 RIV CH eng C - Conference Paper (international conference)
Yatskiv, Roman - Žďánský, Karel - Grym, Jan
Hydrogen detection with semimetal graphite-ZnO (InP,GaN) Schottky diodes.
Materials and Applications for Sensors and Transducers II ( Key Engineering Materials 543). Vol. 543. ZURICH: TRANS TECH PUBLICATIONS LTD, 2013 - (Hristoforou, E.; Vlachos, D.), s. 159-162. ISBN 9783037856161. ISSN 1013-9826.
[2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST. Budapest (HU), 24.05.2012-28.05.2012]
R&D Projects: GA MŠMT(CZ) OC10021
Institutional support: RVO:67985882
Keywords : Graphite based Schottky diodes * Pt nanoparticles * Hydrogen sensor
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
We investigated Schottky diode hydrogen sensors prepared by printing colloidal graphite on ZnO, GaN, and InP substrates partly covered with Pt nanoparticles. A layer of Pt nanoparticles deposited by in-situ pulsed electrophoretic deposition from isooctane colloidal solutions was inserted between the semimetal graphite and the semiconductor surface to dissociate hydrogen molecules. Schottky diodes were investigated by the measurement of current-voltage characteristics and further tested for their sensitivity to hydrogen in a cell with a through-flow gas system. The sensing elements were sensitive to gas mixture with a low hydrogen concentration down to 1 ppm
Permanent Link: http://hdl.handle.net/11104/0224541
Number of the records: 1