Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications

The hydrogen gas sensing properties of nanodevices based on two ZnO nanowires (NWs) functionalized/modified with palladium (Pd/ZnO) at room temperature are studied. The main goal of the study is to find which of the connections—in series or in parallel—is more favorable to improve the properties of...

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Autores principales:	Lupan, Oleg, Postica, Vasilie, Creţu, Vasilii, Pauporte, Thierry, Adelung, Rainer
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2016
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/5b3b20524eb9487da8529072527865b2
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spelling	oai:doaj.org-article:5b3b20524eb9487da8529072527865b22021-11-21T11:57:17ZSeries and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications536.21:621.9+539.512537-63651810-648Xhttps://doaj.org/article/5b3b20524eb9487da8529072527865b22016-12-01T00:00:00Zhttps://mjps.nanotech.md/archive/2016/article/50381https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365The hydrogen gas sensing properties of nanodevices based on two ZnO nanowires (NWs) functionalized/modified with palladium (Pd/ZnO) at room temperature are studied. The main goal of the study is to find which of the connections—in series or in parallel—is more favorable to improve the properties of a double NW nanodevice in comparison with a single Pd/ZnO NWbased nanosensor. An enhancement in gas response is observed in both cases. In the case of connection in series of two NWs, it is attributed to an increased number of Schottky barriers, which are directly related to sensor response to gases. In the case of parallel connection of two NWs, higher electrical currents can flow through the device; it improves the sensor response too; in addition, this type of device can be more easily integrated in electronics due to higher currents in passive regime (in air) and is more stable. Lupan, OlegPostica, VasilieCreţu, VasiliiPauporte, ThierryAdelung, RainerD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 15, Iss 3-4, Pp 139-149 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Lupan, Oleg Postica, Vasilie Creţu, Vasilii Pauporte, Thierry Adelung, Rainer Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications
description	The hydrogen gas sensing properties of nanodevices based on two ZnO nanowires (NWs) functionalized/modified with palladium (Pd/ZnO) at room temperature are studied. The main goal of the study is to find which of the connections—in series or in parallel—is more favorable to improve the properties of a double NW nanodevice in comparison with a single Pd/ZnO NWbased nanosensor. An enhancement in gas response is observed in both cases. In the case of connection in series of two NWs, it is attributed to an increased number of Schottky barriers, which are directly related to sensor response to gases. In the case of parallel connection of two NWs, higher electrical currents can flow through the device; it improves the sensor response too; in addition, this type of device can be more easily integrated in electronics due to higher currents in passive regime (in air) and is more stable.
format	article
author	Lupan, Oleg Postica, Vasilie Creţu, Vasilii Pauporte, Thierry Adelung, Rainer
author_facet	Lupan, Oleg Postica, Vasilie Creţu, Vasilii Pauporte, Thierry Adelung, Rainer
author_sort	Lupan, Oleg
title	Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications
title_short	Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications
title_full	Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications
title_fullStr	Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications
title_full_unstemmed	Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications
title_sort	series and parallel connection of individual pd-modified zno nanowires for gas sensing applications
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2016
url	https://doaj.org/article/5b3b20524eb9487da8529072527865b2
work_keys_str_mv	AT lupanoleg seriesandparallelconnectionofindividualpdmodifiedznonanowiresforgassensingapplications AT posticavasilie seriesandparallelconnectionofindividualpdmodifiedznonanowiresforgassensingapplications AT cretuvasilii seriesandparallelconnectionofindividualpdmodifiedznonanowiresforgassensingapplications AT pauportethierry seriesandparallelconnectionofindividualpdmodifiedznonanowiresforgassensingapplications AT adelungrainer seriesandparallelconnectionofindividualpdmodifiedznonanowiresforgassensingapplications
_version_	1718419364940611584

Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications

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