Development of high sensitivity ethanol gas sensors based on Pt-doped SnO2 surfaces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F04%3APU41190" target="_blank" >RIV/00216305:26220/04:PU41190 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Development of high sensitivity ethanol gas sensors based on Pt-doped SnO2 surfaces

Original language description

This paper describes how thick-film technology was used to fabricate small, robust, sensitive, and selective semiconductor metal oxide (SMO) sensors to detect traces of ethanol vapours in air. The sensing parameters of several active layers were studiedincluding: sensitivity, response repeatability, stability and selectivity. The response to different species of five differently doped SnO2 sensors and a commercially available one were measured at concentrations between 1 ppb and 1000 ppm. Interaction wwas extremely high when ethanol came into contact with the Pt-doped SnO2 surface. The change in resistance of the Pt-doped sensors was between 2 and 55 times higher than the change in the commercial one. The Pt-doped SnO2 material is less resistant, moresensitive and shows faster response to ethanol than pure SnO2. Since the detection limit for ethanol is at sub-ppb level, the fabricated sensors could be used for alcoholmeters or for on-line monitoring and controlling the concentration o

Czech name

Vývoj vysoce citlivého senzoru plynů na etanol založený na dopování povrchu SnO2 platinou

Czech description

Tato práce popisuje postup jak vytvořit malý, citlivý a selektivní senzor plynů s polovodivých oxidů kovů detekující etanol ve vzduchu. Byly studovány různé aktivní vrstvy, jejich citlivost, reprodukovatelnost odezvy, stabilita a selektivita. Odezva SnO2senzoru dopovaného 5 různými materiály byla měřena pro koncetrace plynů v rozsahu 1 ppb až 1000 ppm. Pt-SnO2 senzor ukazuje větší citlivost, rychlejší odezvu a menší odpor vrstvy v parách etanolu než čistý SnO2.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JB - Sensors, detecting elements, measurement and regulation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

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

Name of the periodical

Sensors and Actuators B: Chemical

ISSN

0925-4005

e-ISSN

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Volume of the periodical

99

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

201-206

UT code for WoS article

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EID of the result in the Scopus database

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