Development and characterisation of caesium lead halide perovskite nanocomposite scintillators for X-ray detection

Joseph O'Neill; Isabel Braddock; Carol Crean; Joydip Ghosh; Mateus Masteghin; Sion Richards; Matthew Wilson; Paul Sellin

doi:10.3389/fphy.2022.1046589

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Development and characterisation of caesium lead halide perovskite nanocomposite scintillators for X-ray detection

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Development and characterisation of caesium lead halide perovskite nanocomposite scintillators for X-ray detection

Joseph O'Neill, Isabel Braddock, Carol Crean, Joydip Ghosh, Mateus Masteghin, Sion Richards, Matthew Wilson and Paul Sellin

Frontiers in Physics, Vol.10, 1046589

12/01/2023

DOI: https://doi.org/10.3389/fphy.2022.1046589

Abstract

Physics, Multidisciplinary

Science & Technology

Physical Sciences

Physics

We present work on the development of mixed-halide perovskite (CsPbClx Br(1-x)) nanocrystal scintillators for X-ray detection applications. The effect of the varying the halide composition on the resulting peak emission and light yield is discussed, with the CsPbBr3 materials displaying the greatest light yield. These perovskite nanocrystals were successfully loaded into PMMA, an inert plastic, at 2% mass weighting and the responses of these composites were compared to that of their colloidal dispersions. The composites were also characterised in terms of the radioluminescent light yield and decay response, alongside their X-ray sensitivity, in which the PMMA-CsPbBr3 composites again outperformed the materials containing Cl- anions.

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Title: Development and characterisation of caesium lead halide perovskite nanocomposite scintillators for X-ray detection
Creators: Joseph O'Neill - University of Surrey, School of Maths and Physics
Isabel Braddock - University of Surrey, School of Maths and Physics
Carol Crean - University of Surrey, Department of Chemistry
Joydip Ghosh - University of Surrey, School of Maths and Physics
Mateus Masteghin - University of Surrey, Department of Computer Science
Sion Richards - Science and Technology Facilities Council
Matthew Wilson - Science and Technology Facilities Council
Paul Sellin - University of Surrey, School of Maths and Physics
Publication Details: Frontiers in Physics, Vol.10, 1046589
Publisher: Frontiers Media
Number of pages: 8
Date published: 12/01/2023
Date accepted: 27/12/2022
Grants: University of Surrey (United Kingdom, Guildford)
EP/V036327/1, Engineering and Physical Sciences Research Council (United Kingdom, Swindon) - EPSRC
HDTRA1-18-1-0019, Defense Threat Reduction Agency (United States, Fort Belvoir) - DTRA
Rutherford Appleton Laboratory (United Kingdom, Didcot) - RAL
Grant note: This research was carried out in collaboration with the Defense Threat Reduction Agency (DTRA), Interaction of Ionizing Radiation with Matter University Research Alliance (IIRM-URA), and was also supported under DTRA contract HDTRA1-18-1-0019. The project or effort depicted was or is sponsored by the Department of the Defense, Defense Threat Reduction Agency. The content of the information does not necessarily reflect the position or the policy of the federal government, and no official endorsement should be inferred. This work was also supported by the United Kingdom Engineering and Physical Research Council (Grant number EP/V036327/1). Author JO acknowledges studentship funding from STFC Rutherford Appleton Laboratory and the University of Surrey.
Identifiers: 99783696802346
Copyright: © 2023 O’Neill, Braddock, Crean, Ghosh, Masteghin, Richards, Wilson and Sellin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Academic Unit: School of Chemistry and Chemical Engineering; School of Maths and Physics
Language: English
Resource Type: Journal article

Development and characterisation of caesium lead halide perovskite nanocomposite scintillators for X-ray detection

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