Platelike WO3 from hydrothermal RF sputtered tungsten thin films for photoelectrochemical water oxidation

被引：26
作者：
Li, Wenzhang [1 ]
Liu, Canjun [1 ]
Yang, Yahui [1 ]
Li, Jie [1 ]
Chen, Qiyuan [1 ]
Liu, Fangyang [2 ]
机构：
[1] Cent S Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Peoples R China
[2] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China
来源：
MATERIALS LETTERS | 2012年 / 84卷
基金：
国家高技术研究发展计划(863计划);
关键词：
Solar energy materials; Thin films; Paltelike WO3; Hydrothermal; RF sputtering; CONVERSION EFFICIENCY;
D O I：
10.1016/j.matlet.2012.06.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the first hydrothermal RF (radio-frequency) sputtered tungsten (W) thin films. Platelike tungsten trioxide hydrate (WO3 center dot H2O) films with a thickness of ca. 1 mu m were obtained in nitric acid from a sputtered W layer on fluorine-doped tin oxide (FTO) glass. The platelike films change to monoclinic WO3 and become transparent after annealing at 450 degrees C Photoelectrochemical measurements of the annealed platelike films show incident photon-to-current conversion efficiencies higher than 90% at 340 nm at 1.2 V vs Ag/AgCl with a photocurrent of 1.81 mA/cm(2) under AM 1.5 G illumination. Our hydrothermal film synthesis technique offers an opportunity for fabrication of one-dimensional transparent metal oxide films with practical application in photoelectrochemical energy conversion. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：41 / 43
页数：3
相关论文
共 17 条
[1]   Fabrication and photoelectrochemical property of tungsten(VI) oxide films with a flake-wall structure [J].
Amano, Fumiaki ;
Li, Ding ;
Ohtani, Bunsho .
CHEMICAL COMMUNICATIONS, 2010, 46 (16) :2769-2771
[2]   WO3 nanorods/graphene nanocomposites for high-efficiency visible-light-driven photocatalysis and NO2 gas sensing [J].
An, Xiaoqiang ;
Yu, Jimmy C. ;
Wang, Yu ;
Hu, Yongming ;
Yu, Xuelian ;
Zhang, Guangjin .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (17) :8525-8531
[3]   Enhanced Incident Photon-to-Electron Conversion Efficiency of Tungsten Trioxide Photoanodes Based on 3D-Photonic Crystal Design [J].
Chen, Xiaoqing ;
Ye, Jinhua ;
Ouyang, Shuxin ;
Kako, Tetsuya ;
Li, Zhaosheng ;
Zou, Zhigang .
ACS NANO, 2011, 5 (06) :4310-4318
[4]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[5]   Photoelectrochemical and physical properties of WO3 films obtained by the polymeric precursor method [J].
Li, Wenzhang ;
Li, Jie ;
Wang, Xuan ;
Ma, Jun ;
Chen, Qiyuan .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (24) :13137-13145
[6]   Visible light photoelectrochemical responsiveness of self-organized nanoporous WO3 films [J].
Li, Wenzhang ;
Li, Jie ;
Wang, Xuan ;
Luo, Sha ;
Xiao, Juan ;
Chen, Qiyuan .
ELECTROCHIMICA ACTA, 2010, 56 (01) :620-625
[7]   Photo-electrochemical properties of nanostructured WO3 prepared with different organic dispersing agents [J].
Meda, Laura ;
Tozzola, Gabriella ;
Tacca, Alessandra ;
Marra, Gianluigi ;
Caramori, Stefano ;
Cristino, Vito ;
Bignozzi, Carlo Alberto .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2010, 94 (05) :788-796
[8]   Photoresponse and H2 production of topographically controlled PEG assisted Sol-gel WO3 nanocrystalline thin films [J].
Naseri, N. ;
Yousefzadeh, S. ;
Daryaei, E. ;
Moshfegh, A. Z. .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (21) :13461-13472
[9]   Synthesis of hexagonal WO3 nanowires by microwave-assisted hydrothermal method and their electrocatalytic activities for hydrogen evolution reaction [J].
Phuruangrat, Anukorn ;
Ham, Dong Jin ;
Hong, Suk Joon ;
Thongtem, Somchai ;
Lee, Jae Sung .
JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (09) :1683-1690
[10]   Dense layers of vertically oriented WO3 crystals as anodes for photoelectrochemical water oxidation [J].
Qin, Dong-Dong ;
Tao, Chun-Lan ;
Friesen, Stuart A. ;
Wang, Tsing-Hai ;
Varghese, Oomman K. ;
Bao, Ning-Zhong ;
Yang, Zheng-Yin ;
Mallouk, Thomas E. ;
Grimes, Craig A. .
CHEMICAL COMMUNICATIONS, 2012, 48 (05) :729-731
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