Issue 34, 2021, Issue in Progress

Scintillation in (C6H5CH2NH3)2SnBr4: green-emitting lead-free perovskite halide materials

Abstract

We report the optical and scintillation properties of (C6H5CH2NH3)2SnBr4 with excellent absorption length at 20 keV of 0.016 cm, measured bandgap of 2.51 eV, and photoluminescence lifetime of 1.05 μs. The light yield obtained with the 241Am source is 3600 ± 600 photons per MeV, which is much smaller than the maximum attainable light yield obtained from the bandgap. Temperature dependent radioluminescence measurements confirm the presence of thermal quenching at room temperature with the activation energy and the ratio between the attempt and the radiative transition rates of 61 meV and 129, respectively. Although thermal quenching affects light yield at room temperature, this green light-emitting perovskite opens an avenue for new lead-free scintillating materials.

Graphical abstract: Scintillation in (C6H5CH2NH3)2SnBr4: green-emitting lead-free perovskite halide materials

Supplementary files

Article information

Article type
Paper
Submitted
10 Feb 2021
Accepted
31 May 2021
First published
10 Jun 2021
This article is Open Access
Creative Commons BY license

RSC Adv., 2021,11, 20635-20640

Scintillation in (C6H5CH2NH3)2SnBr4: green-emitting lead-free perovskite halide materials

L. J. Diguna, S. Kaffah, M. H. Mahyuddin, Arramel, F. Maddalena, S. A. Bakar, M. Aminah, D. Onggo, M. E. Witkowski, M. Makowski, W. Drozdowski and M. D. Birowosuto, RSC Adv., 2021, 11, 20635 DOI: 10.1039/D1RA01123E

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