In:
Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 10, No. 18 ( 2022), p. 7147-7153
Abstract:
Organic–inorganic hybrid lead halide perovskite photodetectors have attracted worldwide attention in the field of optoelectronics. This study reports on a solution processable UV photodetector with a vertical-structure which contains a homogenous and dense layer of wide-bandgap methylammonium lead chlorine (CH 3 NH 3 PbCl 3 ) semiconductor as a photon-response absorber. The resultant CH 3 NH 3 PbCl 3 -based UV photodetector achieves a fast response time of 7.76 μs and a high on/off ratio of over 5 × 10 3 . In addition, the photodetector exhibits an impressive light detecting ability with a specific detectivity ( D *) of 7.08 × 10 11 Jones at an illumination intensity of 0.6 μW cm −2 at 375 nm. Moreover, CH 3 NH 3 PbCl 3 -based UV photodetectors without encapsulation show long-term stability (1200 h with 5% attenuation) under simulated operational conditions (25 °C, and 80% relative humidity in air). In addition, the CH 3 NH 3 PbCl 3 -based photodetectors are proven to adapt to flexible substrates such as polyethylene naphthalate. This work reveals great potential of photodetectors with wide bandgap perovskites in the applications of UV light detection.
Type of Medium:
Online Resource
ISSN:
2050-7526
,
2050-7534
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
2702245-6
detail.hit.zdb_id:
2705156-0
