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J. Semicond. > 2008, Volume 29?>?Issue 6?> 1052-1056

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Effect of Cu-Excess on the Electrical Properties of CuxAlO2 (1≤x≤1.06)

Deng Zanhong, Fang Xiaodong, Tao Ruhua, Dong Weiwei, Li Da and Zhu Xuebin

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Abstract: Cu-excess CuxAlO2 ceramics with delafossite phases were synthesized using sol-gel.In the composition range of 1≤x＜1.04,there are no detectable non-delafossite phases.Weak diffraction peaks of CuO are observed when x≥1.04.The room temperature conductivity of the Cu1.04AlO2 sample is improved by nearly an order of magnitude over that of the CuAlO2 sample.The major defect mechanism responsible for the conductivity enhancement is proposed to be substitution defects of CuAl (Cu2+ ions substitute Al3+ ions).The composition formula unit for Cu-excess CuxAlO2 may be expressed as Cu(Al1-yCuy)O.2.

Key words: sol-gel processes, p-type transparent conducting oxide, CuAlO2

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    Received: 18 August 2015 Revised: 08 January 2008 Online: Published: 01 June 2008

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      Deng Zanhong, Fang Xiaodong, Tao Ruhua, Dong Weiwei, Li Da, Zhu Xuebin. Effect of Cu-Excess on the Electrical Properties of CuxAlO2 (1≤x≤1.06)[J]. Journal of Semiconductors, 2008, 29(6): 1052-1056. ****Deng Z H, Fang X D, Tao R H, Dong W W, Li D, Zhu X B. Effect of Cu-Excess on the Electrical Properties of CuxAlO2 (1≤x≤1.06)[J]. J. Semicond., 2008, 29(6): 1052.
      Citation:
      Deng Zanhong, Fang Xiaodong, Tao Ruhua, Dong Weiwei, Li Da, Zhu Xuebin. Effect of Cu-Excess on the Electrical Properties of CuxAlO2 (1≤x≤1.06)[J]. Journal of Semiconductors, 2008, 29(6): 1052-1056. ****
      Deng Z H, Fang X D, Tao R H, Dong W W, Li D, Zhu X B. Effect of Cu-Excess on the Electrical Properties of CuxAlO2 (1≤x≤1.06)[J]. J. Semicond., 2008, 29(6): 1052.

      Effect of Cu-Excess on the Electrical Properties of CuxAlO2 (1≤x≤1.06)

      • Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

      • Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

      • Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

      • Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

      • Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

      • Key Laboratory of Materials Physics,Institute of Solid State Physics,Chinese Academy of Sciences,Hefei 230031,China

      • Received Date: 2015-08-18
      • Accepted Date: 2007-11-09
      • Revised Date: 2008-01-08
      • Published Date: 2008-06-05

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