Efficiency-loss analysis of monolithic perovskite/silicon tandem solar cells by identifying the patterns of a dual two-diode model’s current-voltage curves  

作　　者：Yuheng Zeng Zetao Ding Zunke Liu Wei Liu Mingdun Liao Xi Yang Zhiqin Ying Jingsong Sun Jiang Sheng Baojie Yan Haiyan He Chunhui Shou Zhenhai Yang Jichun Ye 

机构地区：[1]Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices,Ningbo Institute of Materials Technology&Engineering,CAS,Ningbo 315201,China [4]Zhejiang Energy Group R&D,Hangzhou 310003,China

出　　处：《Journal of Semiconductors》2023年第8期68-77,共10页半导体学报（英文版）

基　　金：This work was supported by Zhejiang Energy Group(znkj-2018-118);Key Research and Development Program of Zhejiang Province(2021C01006);Key Project of Zhejiang Province(2021C04009);Science and technology projects in Liaoning Province 2021(2021JH1/10400104);Ningbo“Innovation 2025”Major Project(2020Z098);National Key R&D Program of China(2018YFB1500403);National Natural Science Foundation of China(61974178,61874177,62004199);Youth Innovation Promotion Association(2018333).

摘　　要：In this work,we developed a simple and direct circuit model with a dual two-diode model that can be solved by a SPICE numerical simulation to comprehensively describe the monolithic perovskite/crystalline silicon(PVS/c-Si)tandem solar cells.We are able to reveal the effects of different efficiency-loss mechanisms based on the illuminated current density-voltage(J-V),semi-log dark J-V,and local ideality factor(m-V)curves.The effects of the individual efficiency-loss mechanism on the tandem cell’s efficiency are discussed,including the exp(V/VT)and exp(V/2VT)recombination,the whole cell’s and subcell’s shunts,and the Ohmic-contact or Schottky-contact of the intermediate junction.We can also fit a practical J-V curve and find a specific group of parameters by the trial-and-error method.Although the fitted parameters are not a unique solution,they are valuable clues for identifying the efficiency loss with the aid of the cell’s structure and experimental processes.This method can also serve as an open platform for analyzing other tandem solar cells by substituting the corresponding circuit models.In summary,we developed a simple and effective methodology to diagnose the efficiency-loss source of a monolithic PVS/c-Si tandem cell,which is helpful to researchers who wish to adopt the proper approaches to improve their solar cells.

关 键 词：monolithic perovskite/silicon tandem solar cell efficiency-loss analysis dual two-diode model SPICE numerical simula-tion 

分 类 号：TM914.4[电气工程—电力电子与电力传动]