Zinc oxide nanobelts by RF sputtering for ethanol sensor

被引：91

作者：

Choopun, Supab ^{[1
]}

Hongsith, Niyom ^{[1
]}

Mangkorntong, Pongsri ^{[1
]}

Mangkorntong, Nikorn ^{[1
]}

机构：

[1] Chiang Mai Univ, Dept Phys, Fac Sci, Chiang Mai 50200, Thailand

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2007年 / 39卷 / 01期

关键词：

zinc oxide; ZnO; nanobelt; ethanol sensor; sputtering;

D O I：

10.1016/j.physe.2006.12.053

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Zinc oxide nanobelts were RF sputtered onto a copper tube. Their nanostructure has been confirmed by FE-SEM and Raman spectroscopy. The copper tube coated with these ZnO nanobelts was then employed as an ethanol gas sensor. To characterize the sensor, experiments with ethanol at concentration levels of 50-2000 ppm and at operating temperatures ranging from 200 to 290 degrees C were performed. The sensitivity and response time of the sensor's resistance for several ethanol concentrations and operating temperatures was determined. The relationship between the sensor's sensitivity and ethanol concentration level suggests that the adsorbed oxygen species at the sensor's surface is O2-. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：53 / 56

页数：4

共 20 条

[1] Infrared dielectric functions and phonon modes of high-quality ZnO films [J].

Ashkenov, N ;

Mbenkum, BN ;

Bundesmann, C ;

Riede, V ;

Lorenz, M ;

Spemann, D ;

Kaidashev, EM ;

Kasic, A ;

Schubert, M ;

Grundmann, M ;

Wagner, G ;

Neumann, H ;

Darakchieva, V ;

Arwin, H ;

Monemar, B .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (01) :126-133

[2] Growth of ZnO thin films and whiskers [J].

Chang, YS ;

Ting, JM .

THIN SOLID FILMS, 2001, 398 :29-34

[3] Photoluminescence and Raman behaviors of ZnO nanostructures with different morphologies [J].

Chen, SJ ;

Liu, YC ;

Lu, YM ;

Zhang, JY ;

Shen, DZ ;

Fan, XW .

JOURNAL OF CRYSTAL GROWTH, 2006, 289 (01) :55-58

[4] ZnO nanoparticulate thin film: preparation, characterization and gas-sensing property [J].

Cheng, XL ;

Zhao, H ;

Huo, LH ;

Gao, S ;

Zhao, JG .

SENSORS AND ACTUATORS B-CHEMICAL, 2004, 102 (02) :248-252

[5] Growth of single crystal ZnO nanowires using sputter deposition [J].

Chiou, WT ;

Wu, WY ;

Ting, JM .

[6] Single-crystalline ZnO nanobelts by RF sputtering [J].

Choopun, S ;

Hongsith, N ;

Tanunchai, S ;

Chairuangsri, T ;

Krua-in, C ;

Singkarat, S ;

Vilaithonga, T ;

Mangkorntong, P ;

Mangkorntong, N .

JOURNAL OF CRYSTAL GROWTH, 2005, 282 (3-4) :365-369

[7] Synthesis and properties of multipod-shaped ZnO nanorods for gas-sensor applications [J].

Gao, T ;

Wang, TH .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (07) :1451-1454

[8]

HONGSITH N, 2005, CMU J, V4, P15

[9] The Raman effect in crystals [J].

Loudon, R .

ADVANCES IN PHYSICS, 2001, 50 (07) :813-864

[10] Study on sensitivity of nano-grain ZnO gas sensors [J].

Ma, Y. ;

Wang, W.L. ;

Liao, K.J. ;

Kong, C.Y. .

Journal of Wide Bandgap Materials, 2002, 10 (02) :113-120

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