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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 |
Files in This Item:
File | Description | Size | Format | |
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Adv Funct Materials - 2024 - Lian - Homogenizing Morphology.pdf Restricted Access | Early view | 7.53 MB | Adobe PDF | View/Open Request a copy |
AFM accepted version_WBG.pdf | Peer-reviewed author version | 1.02 MB | Adobe PDF | View/Open |
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