Water-Repelling Dopant-Free Hole-Transporting Materials for Stable and Efficient Planar Perovskite Solar Cells
SCIE
SCOPUS
- Title
- Water-Repelling Dopant-Free Hole-Transporting Materials for Stable and Efficient Planar Perovskite Solar Cells
- Authors
- Choi, Hyuntae; Lee, Junwoo; Kim, Hangyeol; Kim, Jeongsu; Park, Taiho; Song, Seulki
- Date Issued
- 2022-01
- Publisher
- American Chemical Society
- Abstract
- © 2022 American Chemical Society.Hole-transport materials (HTMs) are crucial components in perovskite solar cells (PSCs) for achieving both efficiency and stability of PSCs. Thus, to solve the long-term stability problem of PSCs, we design and introduce a novel dopant-free HTM, F-PBTBDT. F-containing side chain in the F-PBTBDT molecule contributes to the moisture durability of perovskite films. Additionally, the F-PBTBDT molecule facilitates the hole extraction, owing to the suitable energy level matching with the perovskite film. Because of these advantages, PSCs with F-PBTBDT achieved a high efficiency of 19.5%. Furthermore, under extremely humid conditions for 1000 h, the PSCs with F-PBTBDT maintained 81% of their original efficiency. This work is noteworthy in that it provides a novel design strategy for dopant-free HTMs that can effectively boost the stability and the performance of the PSCs.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/117945
- DOI
- 10.1021/acssuschemeng.2c05275
- ISSN
- 2168-0485
- Article Type
- Article
- Citation
- ACS Sustainable Chemistry and Engineering, 2022-01
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- There are no files associated with this item.
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