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Terahertz transmission properties of transparent conducting molybdenum-doped ZnO films

Wu Chen-Guo Shen Jie Li Dong Ma Guo-Hong

Terahertz transmission properties of transparent conducting molybdenum-doped ZnO films

Wu Chen-Guo, Shen Jie, Li Dong, Ma Guo-Hong
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  • Received Date:  02 April 2009
  • Accepted Date:  21 April 2009
  • Published Online:  20 December 2009

Terahertz transmission properties of transparent conducting molybdenum-doped ZnO films

  • 1. (1)复旦大学材料科学系,上海 200433; (2)上海大学物理系,上海 200444

Abstract: With direct current reactive magnetron sputtering method,transparent conducting molybdenum-doped ZnO (ZMO) thin films with different carrier concentration on glass substrate were fabricated by monitoring oxygen partial pressure. The dielectric responses of the ZMO films are characterized with terahertz time-domain spectroscopy. Frequency dependent conductivity,power absorption,and refractive index are obtained,and the experimental results can be well reproduced with classic Drude model. Our results reveal that,by adjusting the carrier concentration of ZMO film,the conducting ZMO film can serve as broadband antireflection coatings for substrates and optics in terahertz frequency range.

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