Improved speed of hydrogen detection by Schottky diodes on InP with electrophoretically deposited Pt nanoparticles and graphite contacts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F13%3A00396642" target="_blank" >RIV/67985882:_____/13:00396642 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.snb.2013.04.099" target="_blank" >http://dx.doi.org/10.1016/j.snb.2013.04.099</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2013.04.099" target="_blank" >10.1016/j.snb.2013.04.099</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improved speed of hydrogen detection by Schottky diodes on InP with electrophoretically deposited Pt nanoparticles and graphite contacts

Popis výsledku v původním jazyce

The electrophoretic deposition (EPD) of nanoparticles (NPs) of the catalytic metal platinum (Pt) onto semiconductor wafers of indium phosphide (InP) from colloid solution in isooctane was studied at room temperature. The colloid solution for EPD was prepared by the chemical reduction of water solutions of the metal salts, confined to AOT reverse micelles in isooctane with hydrazine reducing agent. Four EPD-cast samples of Pt NPs were prepared on polished n-type InP wafers with varying times of deposition. The sheet density of Pt NPs varied from approximately 10% coverage of the substrate to 100% coverage of the substrate by several monolayers of Pt NPs, as observed by SEM. EPD was performed on a masked surface, enabling to make separated small deposited spots. Schottky contacts were made on the deposited spots by printing the contacts with colloidal graphite. The time response of the current to a 0.1% hydrogen exposure exhibited a continuous increase of saturation current and a decreas

Název v anglickém jazyce

Improved speed of hydrogen detection by Schottky diodes on InP with electrophoretically deposited Pt nanoparticles and graphite contacts

Popis výsledku anglicky

The electrophoretic deposition (EPD) of nanoparticles (NPs) of the catalytic metal platinum (Pt) onto semiconductor wafers of indium phosphide (InP) from colloid solution in isooctane was studied at room temperature. The colloid solution for EPD was prepared by the chemical reduction of water solutions of the metal salts, confined to AOT reverse micelles in isooctane with hydrazine reducing agent. Four EPD-cast samples of Pt NPs were prepared on polished n-type InP wafers with varying times of deposition. The sheet density of Pt NPs varied from approximately 10% coverage of the substrate to 100% coverage of the substrate by several monolayers of Pt NPs, as observed by SEM. EPD was performed on a masked surface, enabling to make separated small deposited spots. Schottky contacts were made on the deposited spots by printing the contacts with colloidal graphite. The time response of the current to a 0.1% hydrogen exposure exhibited a continuous increase of saturation current and a decreas

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

<a href="/cs/project/OC10021" target="_blank" >OC10021: Výzkum kovových nanočástic elektroforeticky deponovaných na polovodičové sloučeniny III-V-N</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sensors and Actuators B - Chemical

ISSN

0925-4005

e-ISSN

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Svazek periodika

—

Číslo periodika v rámci svazku

184

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

295-300

Kód UT WoS článku

000319869700041

EID výsledku v databázi Scopus

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