NO2 gas sensing properties of ZnO/ZnS core-shell nanowires

被引：14

作者：

Mun, Youngho ^{[1
]}

Park, Sunghoon ^{[1
]}

Ko, Hyunsung ^{[1
]}

Lee, Chongmu ^{[1
]}

Lee, Sangmin ^{[2
]}

机构：

[1] Inha Univ, Dept Mat Sci & Engn, Inchon 402751, South Korea

[2] Inha Univ, Dept Elect Engn, Inchon 402751, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2013年 / 63卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

ZnO; ZnS; Nanowire; Core-shell; Gas sensor; NO2; DOPED SNO2 NANOWIRES; ZNO NANOWIRES; SENSOR; PHOTOLUMINESCENCE; NANORODS; FILMS; NANOSTRUCTURES; GROWTH; MODEL;

D O I：

10.3938/jkps.63.1595

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

ZnO/ZnS core-shell nanowires were synthesized by using the thermal evaporation of a mixture of ZnO and graphite powders followed by the thermal evaporation of ZnS powder. Then, multiple networked ZnO/ZnS core-shell nanowire gas sensors were fabricated. The morphology, crystal structure, and sensing properties of the ZnO/ZnS core-shell nanowires to NO2 gas at 300 A degrees C were examined. The responses of the ZnO/ZnS core-shell nanowires to NO2 gas were 2.0-2.6 fold higher compared to those for ZnO nanowires at NO2 concentrations ranging from 1 to 5 ppm. In addition, the underlying mechanism for the enhanced gas-sensing properties of ZnO/ZnS core-shell nanowires for NO2 gas is discussed.

引用

页码：1595 / 1600

页数：6

共 39 条

[1] Gas Sensors Based on One Dimensional Nanostructured Metal-Oxides: A Review [J].

Arafat, M. M. ;

Dinan, B. ;

Akbar, Sheikh A. ;

Haseeb, A. S. M. A. .

SENSORS, 2012, 12 (06) :7207-7258

[2] Gas-sensing properties of doped In2O3 films as sensors for NO2 in air [J].

Belysheva, TV ;

Bogovtseva, LP ;

Kazachkov, EA ;

Serebryakova, NV .

JOURNAL OF ANALYTICAL CHEMISTRY, 2003, 58 (06) :583-587

[3] Synthesis and enhanced ethanol sensing characteristics of α-Fe2O3/SnO2 core-shell nanorods [J].

Chen, Yu-Jin ;

Zhu, Chun-Ling ;

Wang, Li-Jiao ;

Gao, Peng ;

Cao, Mao-Sheng ;

Shi, Xiao-Ling .

NANOTECHNOLOGY, 2009, 20 (04)

[4] Silicon-induced oriented ZnS nanobelts for hydrogen sensitivity [J].

Chen, Zhi-Gang ;

Zou, Jin ;

Liu, Gang ;

Lu, Hao Feng ;

Li, Feng ;

Lu, Gao Qing ;

Cheng, Hui Ming .

NANOTECHNOLOGY, 2008, 19 (05)

[5] NO2 sensing characteristics of ZnO nanorods prepared by hydrothermal method [J].

Cho, Pyeong-Seok ;

Kim, Ki-Won ;

Lee, Jong-Heun .

JOURNAL OF ELECTROCERAMICS, 2006, 17 (2-4) :975-978

[6] ZnS nanostructures: From synthesis to applications [J].

Fang, Xiaosheng ;

Zhai, Tianyou ;

Gautam, Ujjal K. ;

Li, Liang ;

Wu, Limin ;

Bando, Yoshio ;

Golberg, Dmitri .

PROGRESS IN MATERIALS SCIENCE, 2011, 56 (02) :175-287

[7] Peculiarities of nitrogen dioxide detection with sprayed undoped and indium-doped zinc oxide thin films [J].

Ferro, R. ;

Rodriguez, J. A. ;

Bertrand, P. .

THIN SOLID FILMS, 2008, 516 (08) :2225-2230

[8] Highly sensitive ZnO nanowire ethanol sensor with Pd adsorption [J].

Hsueh, Ting-Jen ;

Chang, Shoou-Jinn ;

Hsu, Cheng-Liang ;

Lin, Yan-Ru ;

Chen, I.-Cherng .

APPLIED PHYSICS LETTERS, 2007, 91 (05)

[9] ZnO nanoparticle-modified infrared internal reflection elements for selective detection of volatile organic compounds [J].

Huang, GG ;

Wang, CT ;

Tang, HT ;

Huang, YS ;

Yang, J .

ANALYTICAL CHEMISTRY, 2006, 78 (07) :2397-2404

[10] Ultrasensitive multiple networked Ga2O3-core/ZnO-shell nanorod gas sensors [J].

Jin, Changhyun ;

Park, Sunghoon ;

Kim, Hyunsu ;

Lee, Chongmu .

SENSORS AND ACTUATORS B-CHEMICAL, 2012, 161 (01) :223-228

← 1 2 3 4 →