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- Title
Interface engineering for highly efficient carbon-based all-inorganic perovskite solar cells using functionalized amino acid salts.
- Authors
Lu, Faxiang; Wang, Ke; Xu, XiuMin; Cao, Yang; Zhou, Xingfu
- Abstract
Despite the enormous potential of all-inorganic perovskite solar cells due to their exceptional thermal stability in the field of photovoltaics, the performance of devices is still severely limited by interface defects. The electron transport layer (ETL)/perovskite interface plays a crucial role in the crystallization of perovskite film and the transport of charge carriers. However, perovskite film based on the solution method inevitably have a large number of defects at the interface. In this paper, a biocompatible potassium amino acid salt was introduced into carbon-Based all-Inorganic perovskite solar cells without hole transport layer (HTL). It can facilitate the formation of a smoother and more uniform interface between ETL and perovskite, thereby reduce the defect density. In addition, which can also rearrange the energy levels at the interface, improve the crystalline quality of the upper perovskite film, and suppress the hysteresis effect. Through the introduction of the functional material, the all-inorganic perovskite solar cell with high-efficiency and low-hysteresis was prepared. The optimzed device achieved the highest efficiency of 12.11%, which show 16.4% improvement when campared with the control samples.
- Subjects
SOLAR cells; PEROVSKITE; ENERGY levels (Quantum mechanics); AMINO acids; PHOTOVOLTAIC power systems; ELECTRON transport; EXCIMER lasers
- Publication
Journal of Materials Science: Materials in Electronics, 2024, Vol 35, Issue 18, p1
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-024-12963-0