Sealing the domain boundaries and defects passivation by Poly(acrylic acid) for scalable blading of efficient perovskite solar cells

被引:29
作者
Li, Ning [1 ]
Xu, Fan [2 ]
Qiu, Zhiwen [1 ]
Liu, Jialiang [1 ]
Wan, Xingxing [1 ]
Zhu, Xiaomeng [1 ]
Yu, Huanqin [1 ]
Li, Chen [1 ]
Liu, Yining [3 ]
Cao, Bingqiang [1 ,2 ]
机构
[1] Univ Jinan, Sch Mat Sci & Engn, Mat Res Ctr Energy & Photoelectrochem Convers, Jinan 250022, Shandong, Peoples R China
[2] Qufu Normal Univ, Shandong Prov Key Lab Laser Polarizat & Informat, Sch Phys & Phys Engn, Qufu 273165, Shandong, Peoples R China
[3] Shandong Univ, Coll Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
Perovskite solar cell; Doctor-bladed coating; Molecular doping; Defect passivation; HALIDE PEROVSKITES; THIN-FILM; PERFORMANCE; DEPOSITION; FABRICATION; TRANSPORT; ROUTE; COST;
D O I
10.1016/j.jpowsour.2019.04.041
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Organic-inorganic halide perovskite solar cells have achieved efficiency over 23% in the last few years. However, most perovskite solar cells have been fabricated by lab-scale spin-coating method and the strategy for the doctor-bladed device improvement is quite limited. In this study, we report an additive-assisted strategy enabled by Poly(acrylic acid) molecular doping to connect wide gaps between the large domains and passivate defects in the bladed perovskite film. Using this strategy, we obtain a smooth, uniform, and pin-hole free doctor-bladed perovskite film of high electronical quality, which are proved by detailed laser spectroscopy. Consequently, the P-i-N planar heterojunction perovskite solar cells with these bladed thin films achieve considerable enhancement of power conversion efficiency from 10.3% to 14.9% compared to the control device. This work represents an alternative pathway for scalable, cost-effective manufacturing of high performance perovskite devices.
引用
收藏
页码:188 / 196
页数:9
相关论文
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