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Enhanced efficiency of graphene-silicon Schottky junction solar cell through inverted pyramid arrays texturation

查看全文 作　　者：Jiajia [1]Qiu;Yudong [2]Shang;Xiuhua [2]Chen;Shaoyuan [1,3]Li;Wenhui [1,3]Ma;Xiaohan [3]Wan;Jia [1,3]Yang;Yun [1,3]Lei;Zhengjie [2]Chen 高影响力作者 机构地区：[1]State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology;[2]Faculty of Physical Science and Technology,Yunnan University;[3]Institute of New Energy/Silicon Metallurgy and Silicon Material Engineering Research Center of Universities in Yunnan Province,Kunming University of Science and Technology高影响力机构 出　　处：《Journal of Materials Science & Technology》索引2018年第34卷第11期,共8页高影响力期刊 基　　金：support of this work from the NSFC (Nos. 51504117, 61764009 and 51762043);Yunnan Applied Basic Research Project (No. Y0120150138);Research Fund of Yunnan Province Collaborative Innovation Center (No. 2014XTZS009) 摘　　要：Nanostructures of silicon are gradually becoming hot candidate due to outstanding capability for trapping light and improving conversion efficiency of solar cell. In this paper, silicon nanowires(SiNWs) and silicon inverted pyramid arrays(SiIPs) were introduced on surface of Gr-Si solar cell through silver and copper-catalyzed chemical etching, respectively. The effects of SiNWs and SiIPs on carrier lifetime, optical properties and efficiency of Gr-SiNWs and Gr-SiIPs solar cells were systematically analyzed. The results show that the inverted pyramid arrays have more excellent ability for balancing antireflectance loss and surface area enlargement. The power conversion efficiency(PCE) and carrier lifetime of Gr-SiIPs devices respectively increase by 62% and 34% by comparing with that of Gr-SiNWs solar cells. Finally, the Gr-SiIPs cell with PCE of 5.63% was successfully achieved through nitric acid doping. This work proposes a new strategy to introduce the inverted pyramid arrays for improving the performance of Gr-Si solar cells. 关 键 词：太阳能电池 金字塔 数组 硅 连接 变换效率 化学药品 性能介绍
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