Self-powered flexible all-perovskite X-ray detectors with high sensitivity and fast response.
iScience
; 24(8): 102927, 2021 Aug 20.
Article
em En
| MEDLINE
| ID: mdl-34430816
ABSTRACT
Perovskite materials have demonstrated superior performance in many aspects of optoelectronic applications including X-ray scintillation, photovoltaic, photodetection, and so on. In this work, we demonstrate a self-powered flexible all-perovskite X-ray detector with high sensitivity and fast response, which can be realized by integrating CsPbBr3 perovskite nanocrystals (PNCs) as the X-ray scintillator with a CH3NH3PbI3 perovskite photodetector. The PNCs scintillator exhibits ultra-fast light decay of 2.81 ns, while the perovskite photodetector gives a fast response time of â¼0.3 µs and high-specific detectivity of â¼2.4×1012 Jones. The synergistic effect of these two components ultimately leads to a self-powered flexible all-perovskite X-ray detector that delivers high sensitivity of 600-1,270 µC/mGyaircm3 under X-ray irradiation and fast radiation-to-current response time.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article