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

Xiaokang Zheng, Zijian Zhou, Zikang Li, Ka Yan Tran, Pengfei She, Hua Wang, Wai Yeung Wong (Corresponding Author), Qiang Zhao, Peng Tao (Corresponding Author)

Research output: Journal article publicationJournal articleAcademic researchpeer-review

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.

Original languageEnglish
Pages (from-to)8296-8301
Number of pages6
JournalJournal of Materials Chemistry C
Volume12
Issue number23
DOIs
Publication statusPublished - 16 May 2024

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry

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