The influence of change in silane concentration and substrate temperature on optical properties of hydrogenated microcrystalline silicon films

被引：0
|
作者：
Badran, R. I. [1 ]
Al-Heniti, S. [1 ]
Al-Hazmi, F. S. [1 ]
Al-Ghamdi, A. A. [1 ]
Li, J. [2 ]
Xiong, S. [2 ]
机构：
[1] King Abdulaziz Univ, Dept Phys, Jeddah 21413, Saudi Arabia
[2] Nankai Univ, Inst Optoelect, Tianjin 300071, Peoples R China
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2009年 / 11卷 / 05期
关键词：
PECVD; a-Si:H and mu c-Si:H; Electrical Conductivity; Optical Properties; Infrared and Raman Spectra; AMORPHOUS-SILICON; ELECTRICAL-PROPERTIES; PHOTOLUMINESCENCE; DEPOSITION; ABSORPTION; THICKNESS; CONSTANTS; DILUTION; SPECTRA; RAMAN;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of change in deposition conditions of silane concentration and substrate temperature on optical properties of hydrogenated microcrystalline silicon thin film samples prepared by Plasma Enhanced Chemical Vapor Deposition (PECVD) technique, are investigated. The crystalline volume fraction for the samples determined from Raman spectra are correlated with the silane concentration, substrate temperature, deposition rate, absorption coefficient, refractive index and optical energy gap. In addition, a decrease in crystalline volume fraction is found accompanied by a decrease in both dark and photo-conductivities. The values of optical parameters (refractive index and absorption coefficient) are calculated from the transmission spectra in the range 400-2500nm and then used to determine optical band energy gap and Urbach energy. All these values are fairly compared to those obtained by different techniques.
引用
收藏
页码：635 / 643
页数：9
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