Polymer Passivation Effect on Methylammonium Lead Halide Perovskite Photodetectors
- Authors
- Kim, Hyojung; Byun, Hye Ryung; Kim, Bora; Kim, Sung Hyuk; Oh, Hye Min; Jeong, Mun Seok
- Issue Date
- Dec-2018
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Perovskite; Parylene-C; Polymer passivation
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, pp.1675 - 1678
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Start Page
- 1675
- End Page
- 1678
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/148758
- DOI
- 10.3938/jkps.73.1675
- ISSN
- 0374-4884
- Abstract
- Methylammonium lead halide (MAPbI3) perovskites are considered as promising materials owing to their excellent optical and electrical properties. However, perovskite materials suffer from degradation in air, which limits their practical applications. Here, we demonstrate successful passivation of the MAPbI3 photodetectors through monochloro-para-xylylene (Parylene-C) deposition. The time-dependent photocurrent characteristics were systematically investigated, and we achieved significantly improved device performance and stability with Parylene-C passivation. Based on the excitation-power-dependent photoluminescence (PL) data, we confirmed that Parylene-C can reduce the carrier losses in MAPbI3, leading to the enhancement of photocurrent and PL in MAPbI3 photodetectors.
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