Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 12, Issue 48, Pages 11636-11644Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.1c03399
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Funding
- Key Project of Intergovernmental International Scientific and Technological Innovation Cooperation [2017YFE0127100]
- NSFC [22025505, 51861145101, 21777096]
- Program of Shanghai Academic/Technology Research Leader [20XD1422200]
- Key Laboratory of Resource Chemistry, Ministry of Education [KLRC_ME2003]
- Cultivating fund of Frontiers Science Center for Transformative Molecules [2019PT02]
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Metal halide perovskite solar cells have gained significant attention as a promising candidate for future photovoltaics, with various chemicals added during development to enhance performance. However, debates still exist over whether these chemicals act as additives or dopants in the final film. Clarifying the nature of these additives is crucial for designing high-quality perovskite films.
Metal halide perovskite solar cells (PSCs) have attracted enormous attention as one of the most promising candidates for next-generation photovoltaics in the past few years. During the development of PSCs, various chemicals have been added to improve film quality and device performance. However, there are still debates about whether these chemicals are additives as removed from the final film or dopants incorporated into the crystal lattice. It is important to clarify whether these added chemicals are additives or dopants when designed for high-quality perovskite films' fabrications. Herein, we summarized several commonly used chemicals for hybrid and all-inorganic perovskites, such as MACl, DMAI, MAAc, and alkali metal cations. The underlying mechanism and their roles during the formation of perovskite films were discussed. In the end, we proposed some conclusive important factors to clarify additives and dopants, which would be helpful for the further chemical design for improving high-performance perovskite devices.
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