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Advanced Materials

Three-Dimensional Tungsten Oxide Nanowire Networks

Authors

  • J. Zhou,

    1. State Key Lab of Optoelectronic Materials and Technologies and Gungdong Province Key Laboratory of Display Materials and Technologies, SunYat-Sen (Zhongshan) University, Guangzhou, 510275, P.R. China
    2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA
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  • Y. Ding,

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA
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  • S. Z. Deng,

    1. State Key Lab of Optoelectronic Materials and Technologies and Gungdong Province Key Laboratory of Display Materials and Technologies, SunYat-Sen (Zhongshan) University, Guangzhou, 510275, P.R. China
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  • L. Gong,

    1. State Key Lab of Optoelectronic Materials and Technologies and Gungdong Province Key Laboratory of Display Materials and Technologies, SunYat-Sen (Zhongshan) University, Guangzhou, 510275, P.R. China
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  • N. S. Xu,

    1. State Key Lab of Optoelectronic Materials and Technologies and Gungdong Province Key Laboratory of Display Materials and Technologies, SunYat-Sen (Zhongshan) University, Guangzhou, 510275, P.R. China
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  • Z. L. Wang

    1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA
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  • NSX and SZD thank the National Natural Science Foundation of China, the Ministry of Science and Technology of China, the Education Ministry of China, the Department of Education and the Department of Science and Technology of Guangdong Province, and the Department of Science and Technology of Guangzhou City for support of the project. ZLW and YD thank NSF grant DMR-9 733 160, the NASA Vehicle Systems Program, Department of Defense Research and Engineering (DDR&E), and the Defense Advanced Research Projects Agency (Award No. N66 001-04-1-8903) for support. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

Large-scale, single-crystalline, cubic-structured tungsten oxide (WO3–δ) nanowire networks (see Figure) have been synthesized by the thermal evaporation of tungsten metal powder in the presence of oxygen. The formation of ordered planar oxygen vacancies is suggested to be the driving mechanism for the formation of these interpenetrative nanowire networks.

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