The Study of Graphene Gas Sensor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F14%3A00209826" target="_blank" >RIV/68407700:21230/14:00209826 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.605.495" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.605.495</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.605.495" target="_blank" >10.4028/www.scientific.net/KEM.605.495</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Study of Graphene Gas Sensor

Popis výsledku v původním jazyce

The graphene is suitable for gas sensing applications for its two dimensional character which gives the best possible ratio between sensor surface and volume. The interaction between graphene surface and gas molecules can significantly change the graphene layer transport properties. Therefore graphene can serve as a sensitive layer in a gas sensor. This work is concentrated on the analysis of the conductivity of graphene layer exposed to different gases (NH3, CO2 etc.). Together with the electrical measurement on the interdigital graphene sensor a simulation based on quantum atomistic approach has been performed. We used ATK toolkit by Quantuwise based on density functional theory (DFT) models. The exchange-correlation potential is approximated withinthe generalized gradient approximation (GGA). The transport properties of the electrode-device-electrode geometry were calculated by means of non-equilibrium Green?s function formalism as implemented in ATK. Experimental conductivity chan

Název v anglickém jazyce

The Study of Graphene Gas Sensor

Popis výsledku anglicky

The graphene is suitable for gas sensing applications for its two dimensional character which gives the best possible ratio between sensor surface and volume. The interaction between graphene surface and gas molecules can significantly change the graphene layer transport properties. Therefore graphene can serve as a sensitive layer in a gas sensor. This work is concentrated on the analysis of the conductivity of graphene layer exposed to different gases (NH3, CO2 etc.). Together with the electrical measurement on the interdigital graphene sensor a simulation based on quantum atomistic approach has been performed. We used ATK toolkit by Quantuwise based on density functional theory (DFT) models. The exchange-correlation potential is approximated withinthe generalized gradient approximation (GGA). The transport properties of the electrode-device-electrode geometry were calculated by means of non-equilibrium Green?s function formalism as implemented in ATK. Experimental conductivity chan

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP108%2F11%2F0894" target="_blank" >GAP108/11/0894: Růst a zpracování gafenových vrstev na karbidu křemíku</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

IC-MAST - 3rd International Conference on Materials and Applications for Sensors and Transducers

ISBN

9783038350514

ISSN

1013-9826

e-ISSN

—

Počet stran výsledku

4

Strana od-do

495-498

Název nakladatele

Transtech Publications

Místo vydání

Zürich

Místo konání akce

Praha

Datum konání akce

13. 9. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000348035600122