无机材料学报

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掺杂SnO2透明导电薄膜电学及光学性能研究

郭玉忠; 王剑华; 黄瑞安; 王贵青   

  1. 昆明理工大学新材料制备与加工省重点实验室 昆明 650093
  • 收稿日期:2001-01-12 修回日期:2001-04-17 出版日期:2002-01-20 网络出版日期:2002-01-20

Electrical and Optical Properties of Transparent and Conductive Sb-Doped SnO2 Films

GUO Yu-Zhong; WANG Jian-Hua; HUANG Rui-An; WANG Gui-Qing   

  1. Novel Materials Preparation & Processing Provincial Laboratory; Kunming University of Science & Tech-nology; Kunming 650093; China
  • Received:2001-01-12 Revised:2001-04-17 Published:2002-01-20 Online:2002-01-20

摘要: 通过实验测量 sol-gel工艺制备的 Sb掺杂 SnO2薄膜载流子浓度、迁移率、电阻率、膜厚,紫外-可见光区透射率、反射率等性质,详细研究了Sb掺杂SnO薄膜电学与光学性能.实验发现,薄膜具有良好的透光性和较高导电性,膜内载流子浓度高达1020cm-3,电阻率~10-2Ω·cm,透光率高达 90%,SnO膜禁带宽度 ≈37~3.80eV.

关键词: Sb掺杂SnO2薄膜, 导电性测量, 透光率与反射率

Abstract: Based on the measurement and analysis of carier concentration ne, mobility μe, electrical resistivity ρ, film thickness d,
refractive index n, transmittance T(λ) and reflectivity R(λ) in ultraviolet-visible range, the eletrical and optical behaviours of Sb-doped SnO2 thin films derived
by sol-gel processing were investigated. The experimental data show that the SnO2 thin films derived by the sol-gel processing have favourable electrical
conductivity and transmittance in visible light range, in which n-type carrier concentration ne reachs to 1020cm-3, electrical resistivity
ρ~10-2Ω.cm, transmittance T~90%, as well as forbiden band gap Eg=3.7~3.8eV.

Key words: Sb-doped SnO2 thin films, conductivity measurements, transmittance and reflectivity

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