Self-powered flexible all-perovskite X-ray detectors with high sensitivity and fast response

Jin Hyuck Heo; Jin Kyoung Park; Yang (Michael) Yang; David Sunghwan Lee; Sang Hyuk Im

doi:10.1016/j.isci.2021.102927

Self-powered flexible all-perovskite X-ray detectors with high sensitivity and fast response

Jin Hyuck Heo, Jin Kyoung Park, Yang (Michael) Yang, David Sunghwan Lee, Sang Hyuk Im

Department of Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

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 ∼0.3 μs and high-specific detectivity of ∼2.4×10¹² 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/mGy_aircm³ under X-ray irradiation and fast radiation-to-current response time.

Original language	English
Article number	102927
Journal	iScience
Volume	24
Issue number	8
DOIs	https://doi.org/10.1016/j.isci.2021.102927
Publication status	Published - 2021 Aug 20

Keywords

Devices
Engineering
Physics

ASJC Scopus subject areas

General

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.isci.2021.102927

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title = "Self-powered flexible all-perovskite X-ray detectors with high sensitivity and fast response",

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 ∼0.3 μs and high-specific detectivity of ∼2.4×1012 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.",

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author = "Heo, {Jin Hyuck} and Park, {Jin Kyoung} and Yang, {Yang (Michael)} and Lee, {David Sunghwan} and Im, {Sang Hyuk}",

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AU - Heo, Jin Hyuck

AU - Park, Jin Kyoung

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AU - Lee, David Sunghwan

AU - Im, Sang Hyuk

N1 - Funding Information: This study was supported by the National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (No. 2021R1A5A6002853 ), Nano-Material Technology Development Program (No. 2017M3A7B4041696 ), and the Ministry of Education (No. 2020R1I1A1A01061774 ). Publisher Copyright: © 2021 The Author(s)

PY - 2021/8/20

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N2 - 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 ∼0.3 μs and high-specific detectivity of ∼2.4×1012 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.

AB - 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 ∼0.3 μs and high-specific detectivity of ∼2.4×1012 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.

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Self-powered flexible all-perovskite X-ray detectors with high sensitivity and fast response

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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