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
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
收藏
页数:7
相关论文
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