Self-powered flexible all-perovskite X-ray detectors with high sensitivity and fast response
- Authors
- Heo, Jin Hyuck; Park, Jin Kyoung; Yang, Yang (Michael); Lee, David Sunghwan; Im, Sang Hyuk
- Issue Date
- 20-8월-2021
- Publisher
- CELL PRESS
- Keywords
- Devices; Engineering; Physics
- Citation
- ISCIENCE, v.24, no.8
- Indexed
- SCIE
SCOPUS
- Journal Title
- ISCIENCE
- Volume
- 24
- Number
- 8
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/136832
- DOI
- 10.1016/j.isci.2021.102927
- ISSN
- 2589-0042
- 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 similar to 0.3 mu s and high-specific detectivity of similar to 2.4x10(12) 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 mu C/mGy(air)cm(3) under X-ray irradiation and fast radiation-to-current response time.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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