Free-standing ZnO-CuO composite nanowire array films and their gas sensing properties

被引：87

作者：

Wang, J. X. ^{[1
]}

Sun, X. W. ^{[1
,2
]}

Yang, Y. ^{[1
]}

Kyaw, K. K. A. ^{[1
]}

Huang, X. Y. ^{[1
]}

Yin, J. Z. ^{[1
]}

Wei, J. ^{[3
]}

Demir, H. V. ^{[1
,4
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[2] Tianjin Univ, Coll Sci, Dept Appl Phys, Tianjin 300072, Peoples R China

[3] Singapore Inst Mfg Technol, Singapore 638075, Singapore

[4] Bilkent Univ, Dept Phys, Dept Elect & Elect Engn, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey

来源：

NANOTECHNOLOGY | 2011年 / 22卷 / 32期

关键词：

THIN-FILMS; CUO/ZNO HETEROCONTACT; OPTICAL-PROPERTIES; RAMAN-SCATTERING; FIELD-EMISSION; CO; GROWTH; NANOPARTICLES; LUMINESCENCE; SENSITIVITY;

D O I：

10.1088/0957-4484/22/32/325704

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A modified hydrothermal method was developed to synthesize ZnO-CuO composite nanostructures. A free-standing film made of ZnO-CuO nanostructures was assembled on the surface of the hydrothermal solution with a smooth surface on one side and a spherical surface on the other side. The structure, growth mechanism and the optical properties of the composite nanostructures were studied. Structural characterizations indicate that the composite nanostructure mainly consisted of two single-crystal phases of CuO and ZnO. The sensitivity for CO gas detection was significantly improved for the composite CuO-ZnO nanostructure film. This method offers a possible route for the fabrication of free-standing nanostructure films of different functional composite oxides.

引用

页数：7

共 33 条

[1] Bae HY, 1999, SENSOR ACTUAT B-CHEM, V55, P47, DOI 10.1016/S0925-4005(99)00038-6
[2] Raman scattering in ZnO thin films doped with Fe, Sb, Al, Ga, and Li
Bundesmann, C
Ashkenov, N
Schubert, M
Spemann, D
Butz, T
Kaidashev, EM
Lorenz, M
Grundmann, M
[J]. APPLIED PHYSICS LETTERS, 2003, 83 (10) : 1974 - 1976
[3] Electrical and CO gas sensing properties of layered ZnO-CuO sensor
Choi, JD
Choi, GM
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 2000, 69 (1-2) : 120 - 126
[4] Low-temperature chemical solution route for ZnO based sulfide coaxial nanocables: general synthesis and gas sensor application
Du, Ning
Zhang, Hui
Chen, Bingdi
Wu, Jianbo
Yang, Deren
[J]. NANOTECHNOLOGY, 2007, 18 (11)
[5] ZnO nanowire field-effect transistor and oxygen sensing property
Fan, ZY
Wang, DW
Chang, PC
Tseng, WY
Lu, JG
[J]. APPLIED PHYSICS LETTERS, 2004, 85 (24) : 5923 - 5925
[6] Green Fabrication of Hierarchical CuO Hollow Micro/Nanostructures and Enhanced Performance as Electrode Materials for Lithium-ion Batteries
Gao, Shuyan
Yang, Shuxia
Shu, Jie
Zhang, Shuxia
Li, Zhengdao
Jiang, Kai
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (49) : 19324 - 19328
[7] Role of copper in the green luminescence from ZnO crystals
Garces, NY
Wang, L
Bai, L
Giles, NC
Halliburton, LE
Cantwell, G
[J]. APPLIED PHYSICS LETTERS, 2002, 81 (04) : 622 - 624
[8] One-step preparation of coaxial CdS-ZnS nanowires
Hsu, YJ
Lu, SY
[J]. CHEMICAL COMMUNICATIONS, 2004, (18) : 2102 - 2103
[9] Growth and optical properties of single-crystal tubular ZnO whiskers
Hu, JQ
Bando, Y
[J]. APPLIED PHYSICS LETTERS, 2003, 82 (09) : 1401 - 1403
[10] Room-temperature ultraviolet nanowire nanolasers
Huang, MH
Mao, S
Feick, H
Yan, HQ
Wu, YY
Kind, H
Weber, E
Russo, R
Yang, PD
[J]. SCIENCE, 2001, 292 (5523) : 1897 - 1899

← 1 2 3 4 →