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Journal of the Korean Physical Society

, Volume 73, Issue 11, pp 1675–1678 | Cite as

Polymer Passivation Effect on Methylammonium Lead Halide Perovskite Photodetectors

  • Hyojung Kim
  • Hye Ryung Byun
  • Bora Kim
  • Sung Hyuk Kim
  • Hye Min Oh
  • Mun Seok JeongEmail author
Article
  • 31 Downloads

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.

Keywords

Perovskite Parylene-C Polymer passivation 

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Copyright information

© The Korean Physical Society 2018

Authors and Affiliations

  • Hyojung Kim
    • 1
  • Hye Ryung Byun
    • 1
  • Bora Kim
    • 1
  • Sung Hyuk Kim
    • 1
  • Hye Min Oh
    • 1
  • Mun Seok Jeong
    • 1
    Email author
  1. 1.Department of Energy ScienceSungkyunkwan UniversitySuwonKorea

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