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硝酸-冰乙酸腐蚀对CdTe太阳电池性能的影响

Effect of Nitric-acetic Acid Etching on the Properties of CdTe Solar Cells
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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。 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.
作者 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
机构地区 四川大学材料科学与工程学院
出处 《四川大学学报（工程科学版）》 EI CAS CSCD 北大核心 2007年第4期109-112,共4页 Journal of Sichuan University (Engineering Science Edition)
基金 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)
关键词 腐蚀 背接触 CDTE太阳电池 etch back contact CdTe solar ceils
分类号 TK514 [动力工程及工程热物理—热能工程]
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参考文献18

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二级参考文献43

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四川大学学报（工程科学版）
2007年 第4期

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