Improved characteristics of a perovskite solar cell by the annealing process and UV irradiation on the TiO2 layer
- Authors
- Lee, Haram; Park, Sang Joon; Bark, Chung Wung; Choi, Hyung Wook
- Issue Date
- 1-Apr-2019
- Publisher
- IOP PUBLISHING LTD
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.58
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS
- Volume
- 58
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1596
- DOI
- 10.7567/1347-4065/ab073e
- ISSN
- 0021-4922
- Abstract
- In this study, we focused on the changes on the perovskite layer by annealing. A two-step annealing process, which changes the temperature and time in the annealing process of the perovskite film, is important to obtain a more efficient solar cell. The perovskite synthesis proceeds rapidly, but a significant amount of lead iodide residue remains. Additional annealing is needed to reduce the lead iodide residue that causes degradation in efficiency. A solar cell with an average efficiency of 14.3% and a maximum efficiency of 14.58% was fabricated when it was annealed at 150 degrees C for 10 min and further annealed at 120 degrees C for 40 min. In addition, when the TiO2 layer was irradiated with UV light at 185 and 254 nm for 20 min, a perovskite solar cell with an average efficiency of 14.8% and a maximum efficiency of 15.04% was obtained. (C) 2019 The Japan Society of Applied Physics
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Collections - IT융합대학 > 전기공학과 > 1. Journal Articles
- 공과대학 > 화공생명공학과 > 1. Journal Articles
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