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 language | English |
---|---|
Article number | 176417 |
Journal | Journal of Alloys and Compounds |
Volume | 1007 |
DOIs | |
State | Published - 5 Dec 2024 |
Keywords
- Hybrid perovskite
- Mixed halide
- Photodetector
- Pyro-phototronic effect
- Self-powered