Development of a self-powered mixed halide perovskite-based planar near-ultraviolet photodetector by leveraging the pyro-phototronic effect

Joong Yeon Lim, Seonghwan Kim, Muhammad Toyabur Rahman, Pegah Zandi, Arindam Phani, Setareh Homayoonnia, Hee Chang Jeon, Zhengyun Jin, Minwook Park, Young Seong Kim

Research output: Contribution to journalArticlepeer-review

Abstract

Self-powered devices enabled by pyro-phototronic effect (PPE) in mixed halide perovskites was investigated, diverging from conventional approaches that focus on ferroelectric materials and single-halide compositions. The compound (C4H9NH3)2PbI2Br2 was utilized to develop, a simple planar device structure that demonstrated high detectivity in the near-ultraviolet (UV). The proposed device successfully detected photocurrent signals at zero bias voltage in the 405 nm and 532 nm wavelengths, thereby confirming the feasibility of a self-powered photodetector. Notably, the study reveals a significant enhancement in photocurrent, with an increase of up to 23 % at 405 nm, driven by the combined effects of PPE and photovoltaics phenomena present in mixed halide perovskites. These findings present a promising pathway for advancing the design and fabrication of near-UV optoelectronic photodetectors and related devices.

Original languageEnglish
Article number176417
JournalJournal of Alloys and Compounds
Volume1007
DOIs
StatePublished - 5 Dec 2024

Keywords

  • Hybrid perovskite
  • Mixed halide
  • Photodetector
  • Pyro-phototronic effect
  • Self-powered

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