HCl gas sensor based on nano-WO 3 - Details

author：

Huang, S.-Z. (Huang, S.-Z..) ^[1] (Scholars：黄世震) | Lin, W. (Lin, W..) ^[2] (Scholars：林伟) | Wang, D.-W. (Wang, D.-W..) ^[3]

Indexed by：

Scopus PKU CSCD

Abstract：

The　semi　conductive　HCl　gas　sensor　based　on　WO　3　is　prepared　by　dopping,　and　the　characteristic　of　that　is　studied.　The　special　structure　WO　3　is　produced　from　Na　2WO　3　and　strong　hydrochloric　acid　by　sol-gel　method.　It＇s　found　by　XRD,　SEM　and　TEM　that　the　structure　is　sheet　and　incompact　and　the　mean　particle　is　about　17　nm.　The　sensitivity　to　HCl　can　be　improved　greatly　by　dopping　Al　2O　3　but　the　stability　and　selectivity　is　poor.　Although　the　sensitivity　is　reduced　by　dopping　a　little　ZnO,　the　stability　can　be　improved　greatly.　The　sensitivity　to　NO　2　can　be　reduced　by　increasing　the　heating　voltage.　The　sensitivity　mechanism　and　characteristic　of　WO　3　is　analyzed.

Keyword：

Gas sensitivity; Gas sensor; HCl

Community：

[ 1 ] [Huang, S.-Z.]Fujian Key Laboratory of Microelectronics and Integrate Circuit, Fuzhou University, Fuzhou 350002, China
[ 2 ] [Huang, S.-Z.]Department of Physics and Information, Fuzhou University, Fuzhou 350002, China
[ 3 ] [Lin, W.]Fujian Key Laboratory of Microelectronics and Integrate Circuit, Fuzhou University, Fuzhou 350002, China
[ 4 ] [Lin, W.]Department of Physics and Information, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Wang, D.-W.]Fujian Key Laboratory of Microelectronics and Integrate Circuit, Fuzhou University, Fuzhou 350002, China
[ 6 ] [Wang, D.-W.]Department of Physics and Information, Fuzhou University, Fuzhou 350002, China

Reprint 's Address：

黄世震
[Huang, S.-Z.]Fujian Key Laboratory of Microelectronics and Integrate Circuit, Fuzhou University, Fuzhou 350002, China

Email：

hs501@fzu.edu.cn

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Source ：

Journal of Functional Materials and Devices

ISSN： 1007-4252

CN： 31-1708/TB

Year： 2008

Issue： 1

Volume： 14

Page： 167-170

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

Affiliated Colleges：

物理与信息工程学院、微电子学院本学院/部未明确归属的数据

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