A Facile Solvent Strategy Enables Morphology Controllable Perovskite Films for CsPbBr3 Perovskite Solar Cells

被引：4

作者：

Wang, Shiyu ^{[1
,2
,3
]}

Liu, Jiale ^{[1
,2
]}

Chen, Mingyue ^{[3
]}

Lu, Yu ^{[3
]}

Zhao, Yue ^{[3
]}

Qi, Pengcheng ^{[3
]}

Ran, Hongbing ^{[1
,3
]}

Mei, Anyi ^{[2
]}

Tang, Yiwen ^{[3
]}

Han, Hongwei ^{[2
]}

Hu, Yue ^{[2
]}

机构：

[1] Shenzhen Polytech, Coll Elect & Commun Engn, Shenzhen 518055, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[3] Cent China Normal Univ, Coll Phys & Technol, Dept Nanosci & Technol, Wuhan 430079, Peoples R China

来源：

SOLAR RRL | 2023年 / 7卷 / 06期

基金：

中国国家自然科学基金;

关键词：

controllable morphology; CsPbBr3; perovskite solar cells; solvent strategy; EFFICIENT;

D O I：

10.1002/solr.202201055

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The CsPbBr3 perovskite solar cells (PSCs) display extensive potential due to their good thermal and humidity stability, but the presence of heterogeneous phases severely limits the further improvement of device performance. Phase-pure monoclinic CsPbBr3 can be stabilized by using the printable mesoscopic device structure. However, it is challenging to obtain high-quality perovskite crystals in such confined space. Herein, a solvent strategy is used for improving the perovskite crystallization in the printable mesoscopic structure. By using N-methylformamide as the precursor solvent, the PbBr2 exhibits a more uniform and controllable distribution, which benefits the CsPbBr3 crystallization. As a result, the CsPbBr3 inside the pores showed obvious orientation at (100) lattice plane and (110) crystal plane. The efficiency of modified PSCs increases from 7.53% to 8.32%. Based on the device with effective area of 1 cm(2), the PSCs obtain a power conversion efficiency of 5.62%. In addition, PSCs show no obvious attenuation after 1000 h of maximum power point tracking, displaying the excellent illumination stability.

引用

页数：7

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