Issue 3, 2024

Fast solution-phase growth of centimeter-sized Cs3Cu2X5 (X = Cl, I) single crystals for high-performance scintillators

Abstract

Fast and convenient synthesis of zero-dimensional (0D) cesium-copper(I) halide (Cs3Cu2X5 (X = Cl, I)) single crystals (SCs) is critical to achieve practical radiography. In this study, rapid growth of high-quality Cs3Cu2X5 (X = Cl, I) SCs with sizes reaching centimeter scale were achieved within 24 hours using scalable solution-phased methods. These crystals exhibited highly effective emission with large Stokes shifts, excellent PL linearity, and PLQYs exceeding 86%. Additionally, post-treated Cs3Cu2X5–PMMA films demonstrated outstanding scintillation performance, including excellent stabilities, light yield surpassing 36 000 photons per MeV, and spatial resolution up to 6.5 lp per mm in X-ray imaging tests. The high scintillation efficiency can be attributed to their compact 0D crystalline structure, resulting in a small defect density and strong exciton localization.

Graphical abstract: Fast solution-phase growth of centimeter-sized Cs3Cu2X5 (X = Cl, I) single crystals for high-performance scintillators

Supplementary files

Article information

Article type
Paper
Submitted
24 okt 2023
Accepted
10 dec 2023
First published
20 dec 2023

J. Mater. Chem. C, 2024,12, 922-929

Fast solution-phase growth of centimeter-sized Cs3Cu2X5 (X = Cl, I) single crystals for high-performance scintillators

X. Bin, J. Liu, R. Zeng, H. Liu, J. Zhao and T. Lin, J. Mater. Chem. C, 2024, 12, 922 DOI: 10.1039/D3TC03871H

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