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Research of in-situ electrical property of micron dimension ZnO under high pressure

Han Yong-Hao Peng Gang Liu Cai-Long Wang Yue Gao Chun-Xiao Wu Bao-Jia

Research of in-situ electrical property of micron dimension ZnO under high pressure

Han Yong-Hao, Peng Gang, Liu Cai-Long, Wang Yue, Gao Chun-Xiao, Wu Bao-Jia
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  • Received Date:  05 August 2009
  • Accepted Date:  11 September 2009
  • Published Online:  05 March 2010

Research of in-situ electrical property of micron dimension ZnO under high pressure

  • 1. (1)吉林大学超硬材料国家重点实验室,长春 130012; (2)吉林大学超硬材料国家重点实验室,长春 130012;延边大学理学院,延吉 133002

Abstract: Using the diamond anvil cell(DAC)method and the technology of sputtered film, photoetch and chemical etching, the conductivity of micron dimension ZnO were measured successfully under high pressure with molybdenum electrodes on DAC. The samples conductivity was minimal at 919 GPa pressure, which showed the beginning of structural phase transition from wurtzite to rocksalt. Contining compression as far as 1122 GPa, the conductivity increased rapidly and then slowly, which indicated the phase transformation pressure spot was 1122 GPa and the whole example was of rocksalt structure. In addition, it was found that the oxygen holes caused conductivity change by experimentally comparing the samples annealed at 500 ℃ in air, in argon and unannealed respectively.

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