Eco-Friendly and Highly Efficient Light-Emission Ferroelectric Scintillators by Precise Molecular Design |
| |
| Authors: | Jun-Yi Li Chang-Feng Wang Haodi Wu Lang Liu Qiu-Ling Xu Si-Yu Ye Liang Tong Xiang Chen Qiang Gao Yun-Long Hou Fang-Ming Wang Jiang Tang Li-Zhuang Chen Yi Zhang |
| |
| Affiliation: | 1. Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000 China;2. Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology (HUST), Wuhan, 430074 China
School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan, 430074 China;3. School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003 China |
| |
| Abstract: | 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 MnBr42− is utilized to conceive and synthesize a series of hybrid manganese bromide compounds RQ]2MnBr4 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]2MnBr4 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 Gyair s−1, a high light yield of 34 438 photons per MeV, and a low detection limit of 258 nGyair 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. |
| |
| Keywords: | metal halides molecular design molecular ferroelectrics X-ray detection |
|
|
