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Shen L, Wu H, Cao Z, Zhang X, Liu L, Sawwan H, Zhu T, Zheng J, Wang H, Gong X. Two-Dimensional Metal Halide Perovskites Created by Binary Conjugated Organic Cations for High-Performance Perovskite Photovoltaics. ACS Appl Mater Interfaces 2024; 16:19318-19329. [PMID: 38577894 DOI: 10.1021/acsami.4c00288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Studies indicated that two-dimensional (2D) metal halide perovskites (MHPs) embodied with three-dimensional (3D) MHPs were a facile way to realize efficient and stable perovskite solar cells (PSCs) and perovskite photodetectors (PPDs). Here, high-performance PSCs and PPDs, which are based on 2D/3D MHPs bilayer thin films, where the 2D MHPs are created by binary conjugated organic cations, are reported. Systemically studies reveal that the above novel 2D/3D MHPs bilayer thin films possess an enlarged crystal size, balanced charge transport, reduced charge carrier recombination, smaller charge-transfer resistance, and accelerated charge-extraction process compared to the 2D/3D MHPs bilayer thin films, where the 2D MHPs are created by a single conjugated organic cation. As a result, the PSCs based on the above novel 2D/3D MHPs bilayer thin film exhibit a power conversion efficiency of 22.76%. Moreover, unencapsulated PSCs possess dramatically enhanced stability compared with those based on the 2D/3D MHPs bilayer thin films, where the 2D MHPs are created by a single conjugated organic cation. In addition, the PPDs based on the above novel 2D/3D MHPs bilayer thin film exhibit a projected detectivity of 1016 cm Hz1/2/W and a linear dynamic range of 108 dB at room temperature. Our studies indicate that the development of binary conjugated organic cation-based 2D MHPs incorporated with 3D MHPs is a simple method to realize high-performance PSCs and PPDs.
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Affiliation(s)
- Lening Shen
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Haodong Wu
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Zikun Cao
- Department of Physics, University of Miami, Coral Gables ,Florida33146, United States
| | - Xiyao Zhang
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Lei Liu
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Hussain Sawwan
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Tao Zhu
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Jie Zheng
- Department of Chemical, Biomolecular and Corrosion Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - He Wang
- Department of Physics, University of Miami, Coral Gables ,Florida33146, United States
| | - Xiong Gong
- School of Polymer Science and Polymer Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
- Department of Chemical, Biomolecular and Corrosion Engineering, College of Engineering and Polymer Science, The University of Akron, Akron, Ohio 44325, United States
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