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Eco‐Friendly and Highly Efficient Light‐Emission Ferroelectric Scintillators by Precise Molecular Design
Author(s) -
Li JunYi,
Wang ChangFeng,
Wu Haodi,
Liu Lang,
Xu QiuLing,
Ye SiYu,
Tong Liang,
Chen Xiang,
Gao Qiang,
Hou YunLong,
Wang FangMing,
Tang Jiang,
Chen LiZhuang,
Zhang Yi
Publication year - 2021
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202102848
Subject(s) - materials science , ferroelectricity , manganese , scintillator , photoluminescence , quantum yield , halide , dielectric , optoelectronics , yield (engineering) , detector , optics , fluorescence , inorganic chemistry , composite material , physics , chemistry , metallurgy
Hybrid manganese halide has attracted much attention in the field of environment friendly ferroelectric and photo‐responsive multifunctional materials. Here, the highly efficient photoluminescent inorganic framework MnBr 4 2− is utilized to conceive and synthesize a series of hybrid manganese bromide compounds [RQ] 2 MnBr 4 by introducing precisely designed quasi‐spherical cations [RQ] + (R = H, Me, Et, FEt, Q = quinuclidine). The accurate and effective modification of cations not only achieves the satisfactory ferroelectricity, but also enhances the photoluminescence quantum yield from 38.7% to 83.65%. Moreover, [FEtQ] 2 MnBr 4 shows a highly efficient X‐ray scintillator performance, including a large range of linear response to X‐ray dose rate from 0.3 to 414.2 μ Gy air s −1 , a high light yield of 34 438 photons per MeV, and a low detection limit of 258 nGy air s −1 . This work provides an efficient strategy for the preparation of hybrid manganese halide ferroelectrics with highly efficient light‐emission and X‐ray detection.