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

Sangmo Kim; Hoang  Van Quy; Hyung  Wook Choi; Chung  Wung Bark

doi:10.3390/en13051069

Energies (Mar 2020)

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

Sangmo Kim,
Hoang Van Quy,
Hyung Wook Choi,
Chung Wung Bark

Affiliations

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

DOI: https://doi.org/10.3390/en13051069
Journal volume & issue: Vol. 13, no. 5
p. 1069

Abstract

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We employed ultra-violet (UV) light treatment on the TiO2 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; PBI2 decreased without changing the structure.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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