Effect of molybdenum doping on the electrochromic properties of tungsten oxide thin films by RF magnetron sputtering

被引：57
作者：
Madhavi, V. [1 ]
Kumar, P. Jeevan [2 ]
Kondaiah, P. [1 ]
Hussain, O. M. [1 ]
Uthanna, S. [1 ]
机构：
[1] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
[2] NMIT, Dept Phys, Bangalore 560069, Karnataka, India
来源：
IONICS | 2014年 / 20卷 / 12期
关键词：
Molybdenum; Doping; Tungsten trioxide; RF magnetron sputtering;
D O I：
10.1007/s11581-014-1073-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Thin films of pure and molybdenum (Mo)-doped tungsten trioxide (WO3) were deposited on indium tin oxide (ITO)-coated glass and Corning glass substrates by RF magnetron sputtering technique. The effect of Mo doping on the structural, morphological, optical and electrochromic properties of WO3 films was studied systematically. The energy dispersive X-ray analysis (EDAX) revealed that the films consist of molybdenum concentrations from 0 to 2 at.%. X-ray diffraction (XRD) studies indicated that with the increase of Mo concentration the structural phase transformation takes place from polycrystalline to amorphous phase. The crystallite size of the films decreased from 24 to 12 nm with increase of doping concentration of Mo in WO3. Scanning electron microscope (SEM) analysis revealed that Mo dopant led to significant changes in the surface morphology of the films. The electrochemical and electrochromic performance of the pure and Mo-doped WO3 were studied. The WO3 films formed with 1.3 at.% Mo dopant concentration exhibited high optical modulation of 44.3 % and coloration efficiency of 42.5 cm(2)/C.
引用
收藏
页码：1737 / 1745
页数：9
相关论文
共 28 条
  • [1] Titanium doping effects in electrochromic pulsed spray pyrolysed WO3 thin films
    Bathe, Suvarna R.
    Patil, P. S.
    [J]. SOLID STATE IONICS, 2008, 179 (9-10) : 314 - 323
  • [2] Efficient electrochromic materials based on TiO2@WO3 core/shell nanorod arrays
    Cai, G. F.
    Zhou, D.
    Xiong, Q. Q.
    Zhang, J. H.
    Wang, X. L.
    Gu, C. D.
    Tu, J. P.
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2013, 117 : 231 - 238
  • [3] Bond and electrochromic properties of WO3 films deposited with horizontal DC, pulsed DC, and RF sputtering
    Chen, Hsi-Chao
    Jan, Der-Jun
    Chen, Chien-Han
    Huang, Kuo-Ting
    [J]. ELECTROCHIMICA ACTA, 2013, 93 : 307 - 313
  • [4] Cullity B. D., 1978, ELEMENTS XRAY DIFFRA
  • [5] OPTICAL-PROPERTIES OF MIXED-OXIDE WO3-MOO3 ELECTROCHROMIC FILMS
    FAUGHNAN, BW
    CRANDALL, RS
    [J]. APPLIED PHYSICS LETTERS, 1977, 31 (12) : 834 - 836
  • [6] Characterization of Nb-doped WO3 thin films produced by Electrostatic Spray Deposition
    Gaury, J.
    Kelder, E. M.
    Bychkov, E.
    Biskos, G.
    [J]. THIN SOLID FILMS, 2013, 534 : 32 - 39
  • [7] Structure and composition of thermally annealed Mo- and W-based CVD metal oxide thin films
    Gesheva, K
    Cziraki, A
    Ivanova, T
    Szekeres, A
    [J]. THIN SOLID FILMS, 2005, 492 (1-2) : 322 - 326
  • [8] Granqvist C.G., 1995, ELSEVIER SCI
  • [9] Structural transformation induced changes in the optical properties of nanocrystalline tungsten oxide thin films
    Gullapalli, S. K.
    Vemuri, R. S.
    Ramana, C. V.
    [J]. APPLIED PHYSICS LETTERS, 2010, 96 (17)
  • [10] Crystal Structure, Phase, and Electrical Conductivity of Nanocrystalline W0.95Ti0.05O3 Thin Films
    Kalidindi, N. R.
    Manciu, F. S.
    Ramana, C. V.
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (03) : 863 - 868
123