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Chlorine-modified SnO2 electron transport layer for high-efficiency perovskite solar cellsopen access
- Authors
- Ren, Xiaodong; Liu, Yucheng; Lee, Dong Geon; Kim, Won Bin; Han, Gill Sang; Jung, Hyun Suk; Liu, Shengzhong (Frank)
- Issue Date
- Mar-2020
- Publisher
- WILEY
- Keywords
- chlorine-modified SnO2; electron transport layer; perovskite solar cell; surface passivation
- Citation
- INFOMAT, v.2, no.2, pp 401 - 408
- Pages
- 8
- Indexed
- SCIE
SCOPUS
ESCI
- Journal Title
- INFOMAT
- Volume
- 2
- Number
- 2
- Start Page
- 401
- End Page
- 408
- ISSN
- 2567-3165
2567-3165
- Abstract
- A high-quality electron transport layer (ETL) is a critical component for the realization of high-efficiency perovskite solar cells. We developed a controllable direct-contact reaction process to prepare a chlorinated SnO2 (SnO2-Cl) ETL. It is unique in that (a) 12-dichlorobenzene is used to provide more reactive Cl radicals for more in-depth passivation; (b) it does not introduce any impurities other than chlorine. It is found that the chlorine modification significantly improves the electron extraction. Consequently, its associated solar cell efficiency is increased from 17.01% to 17.81% comparing to the pristine SnO2 ETL without the modification. The hysteresis index is significantly reduced to 0.017 for the SnO2-Cl ETL. image
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Related Researcher
- JUNG, HYUN SUK
- Engineering (Advanced Materials Science and Engineering)