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热丝化学气相沉积制备多晶硅薄膜的研究
引用本文:刘韶华,刘艳红,吕博佳,温小琼. 热丝化学气相沉积制备多晶硅薄膜的研究[J]. 电子元件与材料, 2006, 25(5): 23-26
作者姓名:刘韶华  刘艳红  吕博佳  温小琼
作者单位:大连理工大学三束材料改性国家重点实验室,辽宁,大连,116024;大连理工大学三束材料改性国家重点实验室,辽宁,大连,116024;大连理工大学三束材料改性国家重点实验室,辽宁,大连,116024;大连理工大学三束材料改性国家重点实验室,辽宁,大连,116024
基金项目:辽宁省优秀青年教师培养基金
摘    要:
采用热丝化学气相沉积技术制备了多晶硅薄膜。利用Raman、XRD、SEM等检测手段,系统研究了沉积气压、衬底温度、衬底与热丝间距离、衬底种类等实验参数对多晶硅薄膜晶态比、晶面择优取向、晶粒尺寸的影响。得出优化条件:沉积气压42 Pa,衬底温度250℃,衬底与热丝间距离48 mm,在玻璃衬底上制备出晶态比Xc>90%,择优取向为(111),横向晶粒尺寸为200~500 nm,纵向晶粒尺寸为30 nm左右的优质多晶硅薄膜。

关 键 词:无机非金属材料  热丝化学气相沉积  多晶硅薄膜  晶态比  择优取向
文章编号:1001-2028(2006)05-0023-04
收稿时间:2006-01-22
修稿时间:2006-01-22

Deposition and Characteristics of Poly-silicon Films by Hot-wire CVD
LIU Shao-hua,LIU Yan-hong,LU Bo-jia,WEN Xiao-qiong. Deposition and Characteristics of Poly-silicon Films by Hot-wire CVD[J]. Electronic Components & Materials, 2006, 25(5): 23-26
Authors:LIU Shao-hua  LIU Yan-hong  LU Bo-jia  WEN Xiao-qiong
Affiliation:State Key Laboratory for Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Dalian 116024, China
Abstract:
Poly-Si films were deposited by hot-wire chemical vapor deposition,and film structural and morphological properties were characterized by Raman,XRD,and SEM.The effect of parameters,including gas pressure,substrate temperature,space between hot-wore and substrates,and the different kinds of substrates,on poly-Si structure were studied systematically.The results show that the high-quality poly-Si,with particles of 30 nm transverse size and 200~500 nm longitudinal size,90% crystalline ratio,and preferred orientation of(111),can be deposited on glass substrate at the optimal parameters,42 Pa of gas pressure,250℃ of substrate temperature,and 48 mm space between hot-wire and substrates.
Keywords:inorganic non-metallic materials   hot-wire CVD   poly-Si films   crystalline ratio   preferred orientation
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