| 题目： | Tailoring Phase Alignment and Interfaces via Polyelectrolytes Anchoring Enables Large-area 2D Perovskite Solar Cells |
作者： | Chenxu Han1, Yao Wang1, Jiabei Yuan1, Jianguo Sun1, Xuliang Zhang1, Claudio Cazorla2, Xianxin Wu3, Ziang Wu4, Junwei Shi1, Junjun Guo1, Hehe Huang1, Long Hu5, Xinfeng Liu3,6, Han Young Woo4, Jianyu Yuan*1,7, and Wanli Ma1,7 |
单位： | 1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China 4Department of Chemistry, Korea University Seoul, 02841, Republic of Korea 5School of Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia 6Dalian National Laboratory for Clean Energy, Dalian 116023, China 7Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, Jiangsu, China |
摘要： | Ruddlesden-Popper phase 2D perovskite solar cells (PSCs) exhibit improved lifetime while still facing challenges such as phase alignment and up-scaling to module-level devices. Herein, polyelectrolytes are explored to tackle this issue. The contact of perovskite and hole transport layer (HTL) is important for decreasing interfacial non-radiative recombination and scalable fabrication of uniform 2D perovskite film. Through exploring compatible butylamine cation, we first demonstrate poly (3-(4-carboxybutyl) thiophene-2,5-diyl)-butylamine(P3CT-BA) as an efficient HTL for 2D PSCs due to its great hydrophilicity, relatively high hole mobility and uniform surface. More importantly, the tailored P3CT-BA forms anchoring effect and acts as the buried passivator for 2D perovskites. Consequently, a best efficiency approaching 18% was achieved and we further first report large-area (2×3 cm2, 5×5 cm2) 2D perovskite minimodules with an impressive efficiency of 14.81% and 11.13%, respectively. |
影响因子： | 15.336 |
分区情况： | 一区 |
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责任编辑：郭佳