期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 7, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202007762
关键词
efficiency; passivation; perovskite solar cells; porphyrin; stability
类别
资金
- Chinese Academy of Sciences Foundation of China [2018TW2GA0001]
- National Natural Science Foundation of China [21975260]
- Recruitment Program of Global Experts of China [201613, Y8d3071caa]
- Ministry of Science and Technology (MOST) in Taiwan [MOST 107-2113-M-005-010-MY3]
- Innovation and Development Center of Sustainable Agriculture from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan
The results of the study demonstrate that D-pi-A type porphyrin derivatives are promising passivators for improving the cell performance of PSCs.
In recent years, hybrid perovskite solar cells (PSCs) have attracted much attention owing to their low cost, easy fabrication, and high photoelectric conversion efficiency. Nevertheless, solution-processed perovskite films usually show substantial structural disorders, resulting in ion defects on the surface of lattice and grain boundaries. Herein, a series of D-pi-A porphyrins coded as CS0, CS1, and CS2 that can effectively passivate the perovskite surface, increase V-OC and FF, reduce the hysteresis effect, enhance power conversion efficiency to be higher than 22%, and improve the device stability is developed. The results in this study demonstrated that the donor-pi-acceptor type porphyrin derivatives are promising passivators that can improve the cell performance of PSCs.
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