您的位置:首页  > 论文页面

不同掺Na工艺对Cu(In,Ga)Se2薄膜电学、结构和形貌的影响

发表时间:2012-09-30  浏览量:1071  下载量:335
全部作者: 何静婧,刘玮,李志国,孙云
作者单位: 南开大学信息技术科学学院,天津市光电子薄膜器件与技术重点实验室
摘 要: 在柔性衬底上生长Cu(In,Ga)Se2(CIGS)薄膜,Na的掺入会对薄膜特性有重要的改善作用,且不同的掺Na工艺会对薄膜产生不同的影响。实验中,采用低温三步法在柔性聚酰亚胺(polyimide, PI)衬底上沉积CIGS,并研究前掺Na和后掺Na 2种掺Na工艺对太阳能薄膜电池[CuInxGa(1-x)Se2,CIGS]薄膜电学、结构和形貌的影响。研究发现:当Na存在于CIGS薄膜生长过程中时,会影响In,Ga元素的扩散。X射线衍射(X-ray diffraction, XRD)测试发现:薄膜会产生明显的双峰劈裂现象,反映了薄膜中的两相分离。另外,Na的存在还会影响薄膜的生长过程,扫描电子显微镜(scanning electron microscopy,SEM)显示:薄膜的结晶质量会受到影响,造成薄膜晶粒细碎。
关 键 词: 太阳能;太阳能薄膜电池;柔性衬底;低温沉积;Na掺杂
Title: Impact of different sodium incorporation methods on electrical, structural and micrograph properties of Cu(In,Ga)Se2 thin film
Author: HE Jingjing, LIU Wei, LI Zhiguo, SUN Yun
Organization: Tianjin Key Laboratory for Photoelectronic Thin Film Devices and Technology, College of Information Technical Science, Nankai University
Abstract: Incorporation of sodium into Cu(In,Ga)Se2 (CIGS) thin films deposited on flexible substrate leads to a great improvement in the properties of CIGS. Different influences were found by using different sodium incorporation methods. In this work, CIGS was deposited on flexible polyimide (PI) substrate by three-stage process based on low-temperature deposition. The research focuses on the impact of two different sodium incorporation methods, deposition of a sodium compound precursor and post-deposition treatment of a sodium compound, on electrical, structural and micrograph properties of CIGS thin film. X-Ray diffraction (XRD) measurement shows that the interdiffusion of In-Ga is restrained, which exhibits a double-peak reflection pattern when sodium is available during the growth of CIGS. In addition, the growth of CIGS is affected due to sodium incorporation, which leads to a decreased grain size observed by means of scanning electron microscopy (SEM).
Key words: solar energy; CuInxGa(1-x)Se2; flexible substrate; low-temperature deposition; sodium incorporation
发表期数: 2012年9月第18期
引用格式: 何静婧,刘玮,李志国,等. 不同掺Na工艺对Cu(In,Ga)Se2薄膜电学、结构和形貌的影响[J]. 中国科技论文在线精品论文,2012,5(18):1741-1744.
 
0 评论数 0
暂无评论
友情链接