Nanoporous WO3 from anodized RF sputtered tungsten thin films

被引:73
作者
Zheng, Haidong [1 ]
Sadek, Abu Z. [1 ]
Latham, Kay [2 ]
Kalantar-Zadeh, Kourosh [1 ]
机构
[1] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia
[2] RMIT Univ, Sch Appl Sci, Melbourne, Vic 3001, Australia
关键词
Tungsten thin film; Nanoporous WO3; Anodization; RF sputtering; OXIDE; ANODIZATION; ARRAYS; FABRICATION; STRESS;
D O I
10.1016/j.elecom.2009.01.033
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We report the first electrochemical anodization of RF (radio-frequency) sputtered tungsten (W) thin films. High pressure sputtering was utilized to produce W films of low intrinsic stress with a high degree of adhesion to the transparent substrates. Structurally and uniformly porous tungsten trioxide (WO3) films were obtained under optimised anodization conditions in fluoride ion-containing electrolyte. Crystalline WO3 was obtained after annealing the films at 450 degrees C. SEM and XRD characterisation techniques were used to determine the surface morphology and crystal structure of the non-anodized and anodized films. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:768 / 771
页数:4
相关论文
共 26 条
  • [1] Nanostructured materials for electrochromic devices
    Aliev, AE
    Shin, HW
    [J]. SOLID STATE IONICS, 2002, 154 : 425 - 431
  • [2] Study of sol-gel prepared nanostructured WO3 thin films and composites for electrochromic applications
    Badilescu, S
    Ashrit, PV
    [J]. SOLID STATE IONICS, 2003, 158 (1-2) : 187 - 197
  • [3] High photocurrent conversion efficiency in self-organized porous WO3
    Berger, S.
    Tsuchiya, H.
    Ghicov, A.
    Schmuki, P.
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (20)
  • [4] Amorphous WO3 films via chemical vapor deposition from metallorganic precursors containing phosphorus dopant
    Brescacin, E
    Basato, M
    Tondello, E
    [J]. CHEMISTRY OF MATERIALS, 1999, 11 (02) : 314 - 323
  • [5] Direct formation of self-assembled nanoporous aluminium oxide on SiO2 and Si substrates
    Cai, AL
    Zhang, HY
    Hua, H
    Zhang, ZB
    [J]. NANOTECHNOLOGY, 2002, 13 (05) : 627 - 630
  • [6] SILICON QUANTUM WIRE ARRAY FABRICATION BY ELECTROCHEMICAL AND CHEMICAL DISSOLUTION OF WAFERS
    CANHAM, LT
    [J]. APPLIED PHYSICS LETTERS, 1990, 57 (10) : 1046 - 1048
  • [7] Characterization of sol-gel prepared WO3 thin films as a gas sensor
    Cantalini, C
    Atashbar, MZ
    Li, Y
    Ghantasala, MK
    Santucci, S
    Wlodarski, W
    Passacantando, M
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (04): : 1873 - 1879
  • [8] Enhanced energy conversion efficiency of TiO2 electrode modified with WO3 in dye-sensitized solar cells
    Cheng, Ping
    Deng, Changsheng
    Dai, Xiaming
    Li, Bing
    Liu, Danian
    Xu, Jingming
    [J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2008, 195 (01) : 144 - 150
  • [9] Thin film transistors with anodic gate dielectrics and chemical bath deposited active layers
    Gan, FY
    Shih, I
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2002, 20 (04): : 1365 - 1368
  • [10] Photoelectrochromic window with Pt catalyst
    Georg, A
    Georg, A
    Krasovec, UO
    [J]. THIN SOLID FILMS, 2006, 502 (1-2) : 246 - 251