硝酸-冰乙酸腐蚀对CdTe太阳电池性能的影响
李卫 冯良桓 蔡亚平 武莉莉 张静全 黎兵 雷智 郑家贵 蔡伟 陈茜 黄小辉
四川大学材料科学与工程学院,四川成都610064
摘 要:
在CdTe与金属背电极间形成稳定的低电阻接触,有助于提高CdTe太阳电池性能。采用硝酸-冰乙酸腐蚀CdTe薄膜并用真空蒸发法沉积铜背接触层,制备CdTe太阳电池。结果表明,化学腐蚀后在膜面生成了富碲层,硝酸-冰乙酸腐蚀为各向同性刻蚀。对背接触层进行优化退火处理,获得转化效率11.75%的CdTe太阳电池。[著者文摘]

文章出处:
《四川大学学报:工程科学版》-2007年39卷4期 -109-112页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1009-3087(2007)04-0109-04
Effect of Nitric-acetic Acid Etching on the Properties of CdTe Solar Cells
LI Wei, FENG Liang-huan, CAI Ya-ping, WU Li-li, ZHANG Jing-quan, LI Bing, LEI Zhi, ZHENG Jia-gui, CAI Wei, CHEN Qian, HUANG Xiao-hui ( School of Materials Sci. and Eng. , Sichuan Univ. , Chengdu 610065, China)
Abstract:
Forming a low resistance contact to CdTe thin films is a key issue for successful improvement of the performance of CdTe solar cells. The CdTe thin films were etched with nitric -acetic (NA) acid and a Cu back contact layer was deposited onto the etched CdTe surface, then the CdTe solar ceils were fabricated. The results indicated that the nitric-acetic acid pretreatment forms a highly conductive Te layer on the back surface of the CdTe thin films and it is an isotropic etching. An efficiency of 11.75% for CdTe solar ceils was obtained when the back contact layer was annealed under optimum conditions.[著者文摘]
Key words:
etch ; back contact ; CdTe solar ceils
基金资助:
国家高技术研究与发展计划(2003AA513010);四川省科技攻关项目(05GG021-003-3);辐射物理及技术教育部重点实验室(四川大学)(K2005-10)

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