Journal
CHEMSUSCHEM
Volume 14, Issue 18, Pages 3665-3692Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202101089
Keywords
chloride additives; halide additives; pseudo-halide additives; perovskite solar cells; photovoltaics
Funding
- Guangdong Basic and Applied Basic Research Foundation [2020A1515010378]
- Science and Technology Program of Guangzhou [201804010176]
- Fundamental Research Funds for the Central Universities [2019MS049]
- NSFC [21703070]
- French research Agency (ANR) [ANR-18-CE05-0026]
- China Scholarship Council (CSC) [201904910420]
Ask authors/readers for more resources
Perovskite solar cells are being extensively researched due to their high efficiency, low cost, and potential for the future of solar energy. Challenges include large area, high-efficiency devices, and stability, which researchers are trying to address through the use of halide additives. These additives help improve efficiency and stability by controlling crystal growth, reducing defects, and passivating surfaces.
Perovskite solar cells (PSCs) are attracting a tremendous attention from the scientific community due to their excellent power conversion efficiency, low cost, and great promise for the future of solar energy. The best PSCs have already achieved a certified power conversion efficiency (PCE) of 25.5 % after an unprecedented rapid performance rise. However, high requirements with respect to large area, high-efficiency devices, and stability are still the challenges. Major efforts, especially for achieving a high degree of chemical control, have been made to reach these targets. The use of halide additives has played a critical role in improving the efficiency and stability. The present paper reviews the important breakthroughs in PSC technologies made by using halide additives, especially chloride, and pseudo-halide additives for the preparation of the perovskite layers, other layers, and interfaces of the devices. These additives help perovskite (PVK) crystallization and layer morphology control, grain boundary reduction, bulk and interface defects passivation, and so on. Normally, these halide additives play different roles depending on their categories and their location. Herein, recent progresses made due to additives employment in every possible layer of PSCs are reviewed, with focus on chloride, other halides, and pseudo-halides as additives in PVK films, halide additives in carrier transport layers, and at PVK-contact interfaces. Finally, an outlook of additive engineering in PSC progress is given.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available