Low-temperature solution-processed SnO2 electron transport layer modified by oxygen plasma for planar perovskite solar cells
- Authors
- Muthukrishnan, Akshaiya Padmalatha; Lee, Junyeoung; Kim, Jongbok; Kim, Chang Su; Jo, Sungjin
- Issue Date
- Feb-2022
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- RSC ADVANCES, v.12, no.8, pp.4883 - 4890
- Journal Title
- RSC ADVANCES
- Volume
- 12
- Number
- 8
- Start Page
- 4883
- End Page
- 4890
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/21050
- DOI
- 10.1039/d1ra08946c
- ISSN
- 2046-2069
- Abstract
- SnO2 has attracted significant attention as an electron transport layer (ETL) because of its wide optical bandgap, electron mobility, and transparency. However, the annealing temperature of 180 degrees C-200 degrees C, as reported by several studies, for the fabrication of SnO2 ETL limits its application for flexible devices. Herein, we demonstrated that the low-temperature deposition of SnO2 ETL and further surface modification with oxygen plasma enhances its efficiency from 2.3% to 15.30%. Oxygen plasma treatment improves the wettability of the low-temperature processed SnO2 ETL that results in a larger perovskite grain size. Hence, oxygen plasma treatment effectively improves the efficiency of perovskite solar cells at a low temperature and is compatible with flexible applications.
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Collections - Department of Materials Science and Engineering > 1. Journal Articles
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