Long-Chain Gemini Surfactant-Assisted Blade Coating Enables Large-Area Carbon-Based Perovskite Solar Modules with Record Performance  

作　　者：Yumin Ren Kai Zhang Zedong Lin Xiaozhen Wei Man Xu Xianzhen Huang Haining Chen Shihe Yang 

机构地区：[1]Guangdong Provincial Key Lab of Nano‑Micro Material Research,School of Chemical Biology and Biotechnology,Shenzhen Graduate School,Peking University,Shenzhen 518055,People’s Republic of China [2]Shenzhen Bay Laboratory,Institute of Biomedical Engineering,Shenzhen 518107,Guangdong,People’s Republic of China [3]School of Materials Science and Engineering,Beihang University,Beijing 100191,People’s Republic of China

出　　处：《Nano-Micro Letters》2023年第10期463-477,共15页纳微快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(U2001217,22261160370 and 21972006);Guangdong-Hong Kong-Macao Joint Innovation Foundation(2021A0505110003);Shenzhen Basic Research(JCYJ20220818101018038 and JCYJ20200109110628172);Guangdong Province Regional Joint Innovation Foundation(2020B1515120039)。

摘　　要：Carbon-based perovskite solar cells show great potential owing to their low-cost production and superior stability in ambient air.However,scaling up to high-efficiency carbon-based solar modules hinges on reliable deposition of uniform defect-free perovskite films over large areas,which is an unsettled but urgent issue.In this work,a long-chain gemini surfactant is introduced into perovskite precursor ink to enforce self-assembly into a network structure,considerably enhancing the coverage and smoothness of the perovskite films.The long gemini surfactant plays a distinctively synergistic role in perovskite film construction,crystallization kinetics modulation and defect passivation,leading to a certified record power conversion efficiency of 15.46%with Voc of 1.13 V and Jsc of 22.92 mA cm^(-2)for this type of modules.Importantly,all of the functional layers of the module are printed through a simple and high-speed(300 cm min^(-1))blade coating strategy in ambient atmosphere.These results mark a significant step toward the commercialization of all-printable carbon-based perovskite solar modules.

关 键 词：Long-chain gemini surfactant Blade-coating Capillary number Carbon-based perovskite photovoltaics All-printable module 

分 类 号：TM914.4[电气工程—电力电子与电力传动]