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Enhancement of Perovskite Photodetector Using MAPbI 3 with Formamidinium Bromide

Author

Listed:
  • Dong Jae Shin

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Republic of Korea)

  • Hyung Wook Choi

    (Department of Electrical Engineering, Gachon University, Seongnam 13120, Republic of Korea)

Abstract

In this study, a perovskite-based mixed cation/anion ultraviolet photodetector with an added halide material is fabricated using perovskite combined with an ABX_3 structure. Mixed cation/anion perovskite thin films of MAPbI 3 /FABr are manufactured through a relatively simple solution process and employed as light-absorption layers. In the produced thin film, SnO 2 –sodium dodecylbenzenesulfonate acts as an electron transport layer and spiro-OMeTAD acts as a hole injection layer. Compared to a single cation/anion perovskite, the fabricated device exhibits phase stability and optoelectronic properties, and demonstrates a responsivity of 72.2 mA/W and a detectability of 4.67 × 10 13 Jones. In addition, the films show an external quantum efficiency of 56%. This suggests that mixed cation/anion films can replace single cation/anion perovskite films. Thus, photodetectors based on lead halides that can be applied in various fields have recently been manufactured.

Suggested Citation

  • Dong Jae Shin & Hyung Wook Choi, 2024. "Enhancement of Perovskite Photodetector Using MAPbI 3 with Formamidinium Bromide," Energies, MDPI, vol. 17(9), pages 1-11, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:9:p:2183-:d:1387875
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