Properties of transparent conductive In2O3:Mo thin films deposited by Channel Spark Ablation

被引:32
作者
Huang, L [1 ]
Li, XF [1 ]
Zhang, Q [1 ]
Miao, WN [1 ]
Zhang, L [1 ]
Yan, XJ [1 ]
Zhang, ZJ [1 ]
Hua, ZY [1 ]
机构
[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | 2005年 / 23卷 / 05期
关键词
D O I
10.1116/1.1991871
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Molybdenum-doped indium oxide In2O3:Mo (IMO) thin films were deposited on glass substrates by a technique called channel spark ablation. The structure, surface morphology, electrical, and optical properties of these films were investigated by x-ray diffraction, atomic force microscopy (AFM), four-point probe, ultraviolet photoelectron spectroscopy (UPS), Hall analysis, and spectrophotometry. The influence of oxygen pressure on the electrical properties of IMO thin films prepared at T-s=350 degrees C was studied, showing that increasing oxygen pressure changes the resistivity concavely and the carrier concentration convexly. The IMO films as deposited are well crystallized with a preferred orientation of (222) and the surface roughness evaluated in terms of Rrms, Ra, and Rp-v measured by AFM is 0.72, 0.44, and 15.4 nm, respectively. The lowest resistivity and corresponding carrier concentration are 4.8 X 10(-4) Omega cm and 7.1 X 10(20) cm(-3). The typical work function of IMO is 4.6 eV measured by UPS. For all the samples, the average transmittance in the visible region is more than 87%. (c) 2005 American Vacuum Society.
引用
收藏
页码:1350 / 1353
页数:4
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