自然科学版
陕西师范大学学报(自然科学版)
专题研究
铝诱导晶化非晶硅薄膜研究
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刘伟,高斐,方晓玲,王建军,张佳雯,晏春愉
(陕西师范大学 物理学与信息技术学院, 陕西 西安 710062)
刘伟,男,硕士研究生,研究方向为光电薄膜材料.
摘要:
应用晶化非晶硅(a-Si)薄膜铝诱导方法,采用X射线衍射(X-ray diffraction, XRD)、光学显微镜(Optical Microscopy, OM)和原子力显微镜(Atomic Force Microscopy, AFM)等测试手段,研究了退火条件对样品晶化的影响.结果表明,样品在300℃下退火后仍为非晶态; 退火温度为400℃时,样品开始晶化.随着退火时间的增加,薄膜晶化程度越来越高,晶粒越来越大,同时薄膜表面粗糙度增加.
关键词:
铝诱导晶化; 非晶硅薄膜; 晶化率; 退火时间
收稿日期:
2007-05-05
中图分类号:
TN 304.055
文献标识码:
A
文章编号:
1672-4291(2007)04-0033-04
基金项目:
教育部留学回国人员科研基金资助项目(669022);陕西师范大学重点科研基金资助项目(995287)
Doi:
Study on aluminum-induced crystallization of amorphous silicon thin film
LIU Wei, GAO Fei, FANG Xiao-ling, WANG Jian-jun, ZHANG Jia-wen, YAN Chun-yu
(College of Physics and Information Technology, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
Reports the crystallization of amorphous silicon (a-Si) thin film by aluminum-induced crystallization (AIC) on glass substrates. The influence of annealing temperature and time on the crystalline of the sample are studied by X-ray diffraction(XRD), optical microscope(OM) and atomic force microscopy (AFM). The results show that the sample is still amorphous after annealing at 300℃, and at 400℃ the samples begin to crystallize and both the crystalline volume fraction and size of crystalline grain increase with annealing time increase. However, the roughness of the samples is also increased.
KeyWords:
aluminum-induced crystallization; amorphous silicon thin film; crystalline volume fraction; annealing time