Synthesis and humidity sensing properties of feather-like ZnO nanostructures with macroscale in shape

被引：39

作者：

Zhang, Ning ^{[1
]}

Yu, Ke ^{[1
]}

Zhu, Ziqiang ^{[1
]}

Jiang, Desheng ^{[2
]}

机构：

[1] E China Normal Univ, Dept Elect Engn, Shanghai 200241, Peoples R China

[2] Wuhan Univ Technol, Fiber Opt Sensing Technol Res Ctr, Wuhan 430070, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2008年 / 143卷 / 02期

基金：

中国国家自然科学基金;

关键词：

ZnO nanostructures; vapor-phase transport; humidity sensor;

D O I：

10.1016/j.sna.2007.10.079

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Feather-like ZnO nanostructures with macroscale in shape have been synthesized via the vapor-phase transport method with Cu catalyst at 900 degrees C. Two basic parts build this novel feather-like structure: a long central trunk with length several millimeters and lots of secondary branches composed of well-oriented nanorods. The humidity sensor based on as-synthesized product shows high sensitivity and fast response time due to unique structure of the ZnO feathers with large surface-to-volume ratio. It can be found that the resistance of the ZnO materials decreases obviously with increasing relative humidity (RH) at room temperature (26 degrees C). The results demonstrate that these ZnO nanostructures are potential to be used as effective and high performance humidity sensors. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：245 / 250

页数：6

共 16 条

[1] A nanowire WO3 humidity sensor integrated with micro-heater and inverting amplifier circuit on chip manufactured using CMOS-MEMS technique [J].

Dai, Ching-Liang ;

Liu, Mao-Chen ;

Chen, Fu-Song ;

Wu, Chyan-Chyi ;

Chang, Ming-Wei .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 123 (02) :896-901

[2] Room-temperature ultraviolet nanowire nanolasers [J].

Huang, MH ;

Mao, S ;

Feick, H ;

Yan, HQ ;

Wu, YY ;

Kind, H ;

Weber, E ;

Russo, R ;

Yang, PD .

SCIENCE, 2001, 292 (5523) :1897-1899

[3] Carboxylation multi-walled carbon nanotubes modified with LiClO4 for water vapour detection [J].

Huang, XJ ;

Sun, YF ;

Wang, LC ;

Meng, FL ;

Liu, JH .

NANOTECHNOLOGY, 2004, 15 (09) :1284-1288

[4] Polar-surface dominated ZnO nanobelts and the electrostatic energy induced nanohelixes, nanosprings, and nanospirals [J].

Kong, XY ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2004, 84 (06) :975-977

[5] High-sensitivity humidity sensor based on a single SnO2 nanowire [J].

Kuang, Qin ;

Lao, Changshi ;

Wang, Zhong Lin ;

Xie, Zhaoxiong ;

Zheng, Lansun .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (19) :6070-+

[6] Formation of double-side teethed nanocombs of ZnO and self-catalysis of Zn-terminated polar surface [J].

Lao, CS ;

Gao, PM ;

Sen Yang, R ;

Zhang, Y ;

Dai, Y ;

Wang, ZL .

CHEMICAL PHYSICS LETTERS, 2006, 417 (4-6) :358-362

[7] Semiconductor nanowires and nanotubes [J].

Law, M ;

Goldberger, J ;

Yang, PD .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2004, 34 :83-122

[8] SEMICONDUCTOR GAS SENSORS [J].

MORRISON, SR .

SENSORS AND ACTUATORS, 1982, 2 (04) :329-341

[9] Humidity sensors based on TiO2 nanoparticles/polypyrrole composite thin films [J].

Su, Pi-Guey ;

Huang, Lin-Nan .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 123 (01) :501-507

[10]

WAGNER RS, 1964, APPL PHYS LETT, V89, P4, DOI [DOI 10.1063/1.1753975, 10.1063/5.0033416, DOI 10.1063/5.0033416]

← 1 2 →