Solvents incubatedπ-πstacking in hole transport layer for perovskite-silicon 2-terminal tandem solar cells with 27.21%efficiency  

作　　者：Qiaoyan Ma Jufeng Qiu Yuzhao Yang Fei Tang Yilin Zeng Nanxi Ma Bohao Yu Feiping Lu Chong Liu Andreas Lambertz Weiyuan Duan Kaining Ding Yaohua Mai 

机构地区：[1]Institute of New Energy Technology,College of Information Science and Technology,Jinan University,Guangzhou 510632,Guangdong,China [2]School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510006,Guangdong,China [3]IEK-5 Photovoltaik,Forschungszentrum Jülich GmbH,52425 Jülich,Germany [4]Department of Physics,Tianshui Normal University,Tianshui 741000,Gansu,China [5]Guangdong Mellow Energy Co.,Limited,Huajing Road,Guangzhou 510630,Guangdong,China

出　　处：《Journal of Energy Chemistry》2023年第7期25-30,I0002,共7页能源化学（英文版）

基　　金：supported by the National Key R&D Program of China(2018YFB1500103);the National Natural Science Foundation of China(62104082);the Guangdong Basic and Applied Basic Research Foundation(2022A1515010746,2022A1515011228);the Science and Technology Program of Guangzhou(202201010458)。

摘　　要：Room temperature sputtered inorganic nickel oxide(NiO_(x))is one of the most promising hole transport layers(HTL)for perovskite-sillion 2-terminal tandem solar cells with the aid of ultrathin and compact organic layers to passivate the surface defects.In this study,the aromatic solvent with different substituent groups was used to regulate the conformation of poly[bis(4-phenyl)(2,4,6-trimethylphenyl)am ine](PTAA)layer.As a result,the single-junction perovskite solar cell(PSC)gained a power conversion efficiency(PCE)of 20.63%,contributing to a 27.21%efficiency for monolithic perovskite/silicon(double-side polished)2-terminal tandem solar cell,by applying the alkyl aromatic solvent to enhance theπ-πstacking of PTAA molecular chains.The tandem solar cell can maintain 95%initial efficiency after aging over 1000 h.This study provides a universal approach for improving the photovoltaic performance of NiO_(x)/polymer-based perovskite/silicon tandem solar cells and other single junction inverted PSCs.

关 键 词：Tandem solar cells Low temperature deposition Hole transporting property π-πstacking Alkyl aromatic solvent 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]