Perovskite/silicon-based heterojunction tandem solar cells with 14.8%conversion efficiency via adopting ultrathin Au contact

作     者：Lin Fan Fengyou Wang Junhui Liang Xin Yao Jia Fang Dekun Zhang Changchun Wei Ying Zhao Xiaodan Zhang 

作者机构：Institute of Photo-Electronic Thin Film Devices and Technology of Nankai UniversityKey Laboratory of Photo-Electronic Thin Film Devices and TechnologyTianjin 300071China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Tianjin 300072China 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2017年第38卷第1期

页      面：60-65页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Project supported by the International Cooperation Projects of the Ministry of Science and Technology(No.2014DFE60170) the National Natural Science Foundation of China(Nos.61474065,61674084) the Tianjin Research Key Program of Application Foundation and Advanced Technology(No.15JCZDJC31300) the Key Project in the Science&Technology Pillar Program of Jiangsu Province(No.BE2014147-3) the 111 Project(No.B16027) 

主　　题：lanar perovskite top cell silicon heterojunction bottom cell four-terminal tandem transparent ultra-thin gold electrode 

摘      要：A rising candidate for upgrading the performance of an established narrow-bandgap solar technology without adding much cost is to construct the tandem solar cells from a crystalline silicon bottom cell and a high open-circuit voltage top ***,we present a four-terminal tandem solar cell architecture consisting of a selffiltered planar architecture perovskite top cell and a silicon heterojunction bottom cell.A transparent ultrathin gold electrode has been used in perovskite solar cells to achieve a semi-transparent *** transparent ultrathin gold contact could provide a better electrical conductivity and optical reflectance-scattering to maintain the performance of the top cell compared with the traditional metal oxide *** four-terminal tandem solar cell yields an efficiency of 14.8%,with contributions of the top（8.98%）and the bottom cell（5.82%）,*** also point out that in terms of optical losses,the intermediate contact of self-filtered tandem architecture is the uppermost problem,which has been addressed in this communication,and the results show that reducing the parasitic light absorption and improving the long wavelength range transmittance without scarifying the electrical properties of the intermediate hole contact layer are the key issues towards further improving the efficiency of this architecture device.