Effect of UV-Light Treatment on Efficiency of Perovskite Solar Cells (PSCs)

Sangmo Kim, Hoang Van Quy, Hyung Wook Choi and Chung Wung Bark
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Sangmo Kim: Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea
Hoang Van Quy: Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea
Hyung Wook Choi: Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea
Chung Wung Bark: Department of Electrical Engineering, Gachon University, Seongnam 13120, Korea

Energies, 2020, vol. 13, issue 5, 1-11

Abstract: We employed ultra-violet (UV) light treatment on the TiO 2 layer prior to coating the perovskite layer to improve the solar conversion efficiency of perovskite solar cells (PSCs). A laboratory-made UV treatment system was equipped with various UV light sources (8 W power; maximum wavelengths of 254, 302, and 365 nm). The UV light treatment improved the power conversion efficiency (PCE) while coating the uniformity layer and removing impurities from the surface of cells. After the PSCs were exposed to UV light, their PCE developed approximately 10% efficiency; PBI 2 decreased without changing the structure.

Keywords: UV light; perovskite; solar cell; surface; treatment (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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