Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/42985
Title: Homogenizing Morphology and Composition of Methylammonium-Free Wide-Bandgap Perovskite for Efficient and Stable Tandem Solar Cells
Authors: Lian, Xinxin
Xu, Ye
Fu, Wei
Meng, Rui
Ma, Quanxing
Xu , Chunyu
Luo, Ming
Hu, Ying
Han, Junchao
Min, Hao
KRISHNA, Anurag 
Chen, Yifan
Zhou, Huawei
Zhang , Xueling
Chen , Cong
Chang, Jin
Li, Can
Chen, Yifeng
Feng, Zhiqiang
Li, Zhen
Zuo, Guangzheng
Gao, Jifan
Mo, Xiaoliang
Zhang , Hong
Chu, Junhao
Issue Date: 2024
Publisher: WILEY-V C H VERLAG GMBH
Source: ADVANCED FUNCTIONAL MATERIALS,
Status: Early view
Abstract: A facile and eco-friendly dimethyl sulfoxide-mediated solution aging (DMSA) treatment is presented to control the crystallization dynamics of methylammonium (MA)-free wide-bandgap (WBG) perovskite films, enhancing film quality, and morphology for high-performance tandem solar cells. The comprehensive structural, morphological, and characterization analyses reveal that the DMSA treatment significantly enhances composition and morphology homogeneity while suppressing halide segregation. Consequently, opaque, and semi-transparent MA-free WBG perovskite solar cells (PSCs) exhibit remarkable power conversion efficiencies (PCEs) of 18.28% and 17.61%, respectively. Notably, the unencapsulated DMSA-treated devices maintain 95% of the initial PCE after 900 h of continuous operation at 55 degrees C +/- 5 degrees C. Furthermore, stacking semi-transparent DMSA-treated PSCs as top cells in a 4T tandem configuration, along with silicon heterojunction (SHJ), lead-tin (Pb-Sn) alloyed PSCs, and organic photovoltaics (OPV) as bottom cells, yields impressive PCEs of 28.09%, 26.09%, and 25.28%, respectively, for the fabricated tandem cells. This innovative approach opens new avenues for enhancing the photo-stability and photovoltaic performance of perovskite-based tandem solar cells. A facile and eco-friendly dimethyl sulfoxide-mediated solution aging (DMSA) treatment is proposed to homogenize the morphology and composition of methylammonium-free wide-bandgap perovskite films, which contributes to highly efficient and stable semitransparent perovskite solar cells and tandem solar cells. image
Notes: Zhang, H; Mo, XL (corresponding author), Fudan Univ, State Key Lab Photovolta Sci & Technol, Shanghai Frontiers Sci Res Base Intelligent Optoel, Dept Mat Sci,Inst Optoelect,Yiwu Res Inst, Shanghai 200433, Peoples R China.
hzhangioe@fudan.edu.cn; xlmo@fudan.edu.cn
Keywords: homogeneity;methylammonium-free;perovskite solar cells;tandem solar cellswide-bandgap perovskite
Document URI: http://hdl.handle.net/1942/42985
ISSN: 1616-301X
e-ISSN: 1616-3028
DOI: 10.1002/adfm.202402061
ISI #: 001204838900001
Rights: 2024 Wiley-VCH GmbH
Category: A1
Type: Journal Contribution
Appears in Collections:Research publications

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