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Related Experiment Video

Updated: Jul 9, 2026

$Microfluidic Chips for In Situ Crystal X-ray Diffraction and In Situ Dynamic Light Scattering for Serial Crystallography$

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Published on: April 24, 2018

Transparent and Planar Cs₃Cu₂Cl₅ Crystals for Micrometer-Resolution X-ray Imaging Screen.

Weijia Xiang¹, Depeng Shen², Xiangzhou Zhang¹

¹Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, P. R. China.

ACS Applied Materials & Interfaces

|January 18, 2024

Summary

Researchers developed centimeter-sized copper halide perovskite crystals for advanced X-ray imaging. These Cs3Cu2Cl5 crystals offer high light yield and micrometer resolution, improving detector sensitivity and stability for practical applications.

Keywords:

Cs3Cu2Cl5 X-ray imaging planar crystal transparent perovskite unity quantum yield

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Area of Science:

Materials Science
Solid-State Physics
Crystallography

Background:

Copper-based (I) halide perovskites are promising for X-ray imaging due to processability and high light yield.
Existing materials often require complex shaping for scintillation screen applications.

Purpose of the Study:

To grow centimeter-sized, planar Cs3Cu2Cl5 single crystals for X-ray scintillation screens.
To evaluate the scintillation performance, resolution, and stability of the developed crystals.
To introduce a solution-based synthesis for 2D scintillating crystals.

Main Methods:

Slow-cooling method for crystal growth.
Space-confined chamber for controlling planar orientation.
Surface passivation technique for enhanced stability.

Main Results:

Achieved centimeter-sized, planar Cs3Cu2Cl5 single crystals.
Unity photoluminescence quantum yield and high light yield (95,000 photons/MeV).
X-ray detector sensitivity down to 2.7 μGyair/s and spatial resolution of 105 lp/mm.
Improved crystal stability, retaining phase after 6 months post-passivation.

Conclusions:

Solution-processed Cs3Cu2Cl5 single crystals offer superior performance for X-ray imaging.
The developed synthesis and passivation methods enable practical, high-resolution scintillation screens.
This work paves the way for advanced X-ray inspection and imaging technologies.