文献类型：期刊文献

英文题名：Relaying delivery of excited state electrons for fully printable perovskite solar cells via ultra-thin gradient PCBM/perovskite heterojunction

作者：Xu, Liang[1,2];Li, Chen[1,2];Zhong, Ya[1,2];Pang, Zhihan[1,2];Wu, Wenjun[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2019

卷号：187

起止页码：352

外文期刊名：SOLAR ENERGY

收录：;EI(收录号：20192607122708);WOS:【SCI-EXPANDED(收录号:WOS:000474327400031)】；

基金：This work was supported financially by NSFC/China (21676087), the Scientific Committee of Shanghai (18160723400), the Programme of Introducing Talents of Discipline to Universities (B16017). The authors thank Research Center of Analysis and Test of East China University of Science and Technology for the help on the characterization. The authors thank Prof. Hongwei Han and Associate Prof. Yue Hu for guidance on device fabrication.

语种：英文

外文关键词：Perovskites solar cells; Printable; PCBM; Heterojunction; Post-treatment

摘要：The high-temperature fabrication process for fully printable perovskite solar cell (PSC) limits its synchronization passivation with device fabrication. Herein we have creatively developed a post-decoration process (PDP) using phenyl-C-61-butyric acid methyl ester (PCBM) in chlorobenzene anti-solvent, which not only induces the regrowth of perovskite crystals reducing grain boundaries, but also realizes the relaying delivery of excited state electrons from perovskite to TiO2 in virtue of the ultra-thin PCBM/perovskite heterojunction. The champion device with PCBM achieved a power conversion efficiency of 14.12% with an open circuit voltage of 0.91 V, a current density of 24.03 mA/cm(2) and a fill factor of 0.64. It provides a simple approach towards high efficiency without sacrificing long-term stability of fully printable perovskite solar cells.