Enhancing the photon- and gas-sensing properties of a single SnO2 nanowire based nanodevice by nanoparticle surface functionalization

被引：133

作者：

Kuang, Qin ^{[1
,2
,3
]}

Lao, Chang-Shi ^{[3
]}

Li, Zhou ^{[3
]}

Liu, Yu-Zi ^{[3
]}

Xie, Zhao-Xiong ^{[1
,2
]}

Zheng, Lan-Sun ^{[1
,2
]}

Wang, Zhong Lin ^{[3
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China

[3] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 30期

关键词：

D O I：

10.1021/jp802880c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Field-effect transistors based on a single SnO2 nanowire were successfully fabricated, and their photon- and gas-sensing properties were investigated. It is found that the sensitivity of single SnO2 nanowire based devices was remarkably improved by surface functionalization with ZnO or NiO nanoparticles. The heterojunction between the surface coating layers and SnO2 and the corresponding coupling effect of the two sensing materials play a critical role in controlling device sensitivity.

引用

页码：11539 / 11544

页数：6

共 44 条

[31] Effect of Fe doping on the gas sensing properties of nano-crystalline SnO2 thin films [J].

Rani, Sanju ;

Roy, Somnath C. ;

Bhatnagar, M. C. .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 122 (01) :204-210

[32]

SHEN YS, 1993, SENSOR ACTUAT B-CHEM, V12, P5, DOI 10.1016/0925-4005(93)85003-S

[33] ZnO nanowire UV photodetectors with high internal gain [J].

Soci, C. ;

Zhang, A. ;

Xiang, B. ;

Dayeh, S. A. ;

Aplin, D. P. R. ;

Park, J. ;

Bao, X. Y. ;

Lo, Y. H. ;

Wang, D. .

NANO LETTERS, 2007, 7 (04) :1003-1009

[34]

Solis JL, 2001, J AM CERAM SOC, V84, P1504, DOI 10.1111/j.1151-2916.2001.tb00868.x

[35] Dielectrophoretic fabrication and characterization of a ZnO nanowire-based UV photosensor [J].

Suehiro, Junya ;

Nakagawa, Nobutaka ;

Hidaka, Shin-ichiro ;

Ueda, Makoto ;

Imasaka, Kiminobu ;

Higashihata, Mitsuhiro ;

Okada, Tatsuo ;

Hara, Masanori .

NANOTECHNOLOGY, 2006, 17 (10) :2567-2573

[36]

TAMKI J, 1998, SENSOR ACTUAT B-CHEM, V49, P121

[37] Detection of hydrogen with SnO2-coated ZnO nanorods [J].

Tien, L. C. ;

Norton, D. P. ;

Gila, B. P. ;

Pearton, S. J. ;

Wang, Hung-Ta ;

Kang, B. S. ;

Ren, F. .

APPLIED SURFACE SCIENCE, 2007, 253 (10) :4748-4752

[38] Surface cupricated SnO2-ZnO thick films as a H2S gas sensor [J].

Wagh, MS ;

Patil, LA ;

Seth, T ;

Amalnerkar, DP .

MATERIALS CHEMISTRY AND PHYSICS, 2004, 84 (2-3) :228-233

[39]

Wang C, 2002, APPL CATAL B-ENVIRON, V39, P269

[40] NiO nanorings and their unexpected catalytic property for CO oxidation [J].

Wang, DS ;

Xu, R ;

Wang, X ;

Li, YD .

NANOTECHNOLOGY, 2006, 17 (04) :979-983

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