High-Brightness Colloidal Cu₄I₄-Based Microcrystal Scintillators for High-Resolution Rotational Dynamic X-ray Imaging and 3D Reconstruction

Tiantian Sang; Jiacheng Shen; Kun Gang; Le Li; Mingli Liang; Xiaoyu Li; Lei Zhang; Jinbiao Pan; Shujuan Liu; Xiangmei Liu; Qiang Zhao

doi:10.1021/acsmaterialslett.5c00758

journal article·2025-08-04

High-Brightness Colloidal Cu₄I₄-Based Microcrystal Scintillators for High-Resolution Rotational Dynamic X-ray Imaging and 3D Reconstruction

Tiantian Sang, Jiacheng Shen, Kun Gang, Le Li, Mingli Liang, Xiaoyu Li, Lei Zhang, Jinbiao Pan, Shujuan Liu, Xiangmei Liu, Qiang Zhao

ACS Materials Letters· Volume 7· Issue 8

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Source abstract

Abstract

Copper(I) iodide cluster-derived complexes show great promise for static X-ray imaging but face key challenges in dynamic X-ray imaging, due to difficulties in fabricating scintillator films that combine high brightness, low light scattering, and mechanical flexibility. Herein, electron-rich ligands are introduced to regulate the excited-state behavior and minimize nonradiative transitions in Cu 4 I 4 cluster-derived complexes. Under poly(vinylpyrrolidone) (PVP) micelle confinement, colloidal Cu 4 I 4 cluster-derived microcrystals with a high photoluminescence quantum yield (PLQY) of 92.4% and a steady-state X-ray relative light yield four times than that of Bi 4 Ge 3 O 12 were synthesized. By synergistic integration of ligand regulation, PVP micelle confinement, and precise control of microelectronic printing, uniform scintillator films enabling high-resolution X-ray imaging (exceeding 20 lp mm –1 ) were achieved. These films exhibit outstanding performance in real-time dynamic X-ray imaging and 3D reconstruction of nonplanar objects, representing a significant advancement beyond conventional 2D X-ray imaging toward 3D panoramic and tomographic applications.

Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Nanocluster Synthesis and Applications · Nanoplatforms for cancer theranostics · Lanthanide and Transition Metal Complexes

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China

National Engineering Research Center of Green Recycling for Strategic Metal Resources, Institutional Center for Shared Technologies and Facilities

Institute of Process Engineering, Chinese Academic of Sciences, University of Chinese Academic of Sciences

College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China

Nanjing University of Information Science & Technology

Funding

National Key Research and Development Program of China · Basic Research Program of Jiangsu Province · Nanjing University of Posts and Telecommunications · National Natural Science Foundation of China

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