Hydrogen Sensors Made on InP or GaN with Electrophoretically Deposited Pd or Pt Nanoparticles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00369485" target="_blank" >RIV/68407700:21340/12:00369485 - isvavai.cz</a>
Alternative codes found
RIV/67985882:_____/12:00387579
Result on the web
<a href="https://doi.org/10.12693/APhysPolA.122.572" target="_blank" >https://doi.org/10.12693/APhysPolA.122.572</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.122.572" target="_blank" >10.12693/APhysPolA.122.572</a>
Alternative languages
Result language
angličtina
Original language name
Hydrogen Sensors Made on InP or GaN with Electrophoretically Deposited Pd or Pt Nanoparticles
Original language description
High quality Schottky diodes were prepared by printing colloidal graphite on the polished wafers of n-type InP or n-type GaN. The wafers were earlier sparsely covered with palladium or platinum nanoparticles by electrophoresis from prepared colloid solutions in isooctane. Deposited contacts and nanoparticles were observed by scanning electron mictroscopy. Current voltage characteristics of the Schottky diodes showed high rectification ratios and the barrier heights close to the value of vacuum-level-alignment of the Schottky-Mott limit. The sensitivity to hydrogen of the diodes was measured in the flow of hydrogen/nitrogen mixtures of various hydrogen concentrations in the range from 1 ppm to 1000 ppm. The estimated detection limits of the diodes were in the sub-ppm range. The diodes represent orders-of-magnitude improvement over the best hydrogen sensors reported previously.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Physica Polonica A
ISSN
0587-4246
e-ISSN
1898-794X
Volume of the periodical
122
Issue of the periodical within the volume
3
Country of publishing house
PL - POLAND
Number of pages
4
Pages from-to
572-575
UT code for WoS article
000309019200038
EID of the result in the Scopus database
2-s2.0-84865846325