Issue 23, 2024

Designing an aromatic moiety-free neutral luminescent manganese(ii) halide scintillator for efficient X-ray imaging

Abstract

An aromatic moiety-free strategy is proposed for the effective excited state manipulation of the neutral luminescent manganese(II) halide. Interestingly, compared to the traditional monodentate ligand-based manganese(II) complexes, a dramatic enhancement of photoluminescent quantum yield of 0.413 is achieved by incorporating tri(pyrrolidin-1-yl)phosphine oxide (TPPO) as a new ligand without any aromatic moiety into the manganese(II) complex. The designed aromatic moiety-free neutral luminescent manganese(II) bromide (TPPOMnBr2) featuring an intense green emission (512 nm) and a short emission lifetime (0.564 ms) is employed to realize efficient X-ray imaging with a high spatial resolution value of 11.3 lp mm−1 and a low detection limit of 34.95 nGy s−1, making it a promising candidate for high-performance X-ray detection in the future.

Graphical abstract: Designing an aromatic moiety-free neutral luminescent manganese(ii) halide scintillator for efficient X-ray imaging

Supplementary files

Article information

Article type
Communication
Submitted
03 Apr 2024
Accepted
16 May 2024
First published
16 May 2024

J. Mater. Chem. C, 2024,12, 8296-8301

Designing an aromatic moiety-free neutral luminescent manganese(II) halide scintillator for efficient X-ray imaging

X. Zheng, Z. Zhou, Z. Li, K. Tran, P. She, H. Wang, W. Wong, Q. Zhao and P. Tao, J. Mater. Chem. C, 2024, 12, 8296 DOI: 10.1039/D4TC01355G

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