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[期刊论文]

Optical and electrical properties of CuCr1-xMgxO2 (0≤x≤0.09) thin films

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作者:

Li, Yang-Chao (Li, Yang-Chao.) | Zhang, Ming (Zhang, Ming.) | Dong, Guo-Bo (Dong, Guo-Bo.) | 展开

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摘要:

A series of CuCr1-xMgxO2 (0≤x≤0.09) thin films were deposited on quartz substrates using radio frequency magnetron sputtering. The structures, optical and electrical properties of CuCr0.91Mg0.09O2 thin films were investigated by diffractometry, double-beam spectrophotometry, electrical property measurement, respectively. XRD pattern indicates that all films are of 3R polycrystalline delafossite phase with good crystallinity after annealing. The conductivity of film has a notable improvement with increasing Mg. The conductivity at room temperature is 6.16×10-2 S/cm for x=0.09 which is nearly 400 times higher than that undoped CuCrO2 film. The p-type nature of films is confirmed by Hall measurements. The temperature dependence of electrical conductivity agrees well with the Arrhenius rule in the range of 200-300 K for all samples, and the minimum activation energy is 0.034 eV with x=0.09. Both average transmittance and optical band gap of CuCr1-xMgxO2 films decrease with the increase of Mg concentration.

关键词:

Chromium compounds Magnetron sputtering Energy gap Copper compounds Activation energy Thin films Optical band gaps Optical properties Crystallinity Optical films Temperature distribution

作者机构:

  • [ 1 ] [Li, Yang-Chao]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Zhang, Ming]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Dong, Guo-Bo]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 4 ] [Zhao, Xue-Ping]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 5 ] [Yan, Hui]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

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来源 :

Chinese Journal of Nonferrous Metals

ISSN: 1004-0609

年份: 2010

期: 5

卷: 20

页码: 898-902

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WoS核心集被引频次: 0

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