Synthesis, structure, and photoelectric properties of a novel zero-dimensional organic-inorganic hybrid perovskite (C6H9N2)2MnI4
Synthesis, structure, and photoelectric properties of a novel zero-dimensional organic-inorganic hybrid perovskite (C6H9N2)2MnI4
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DOI：
10.1016/j.optmat.2022.113360
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发表时间：
2023-02
影响因子：
3.9
通讯作者：
Xiaopeng Wei;Jian He;Yin Zhu;Zixiao Qin;Guoyuan Zheng;Rui Zhang;Shuyi Mo;Jilin Wang;D. Yao;B. Lin;Nan Tian;Bing Zhou;Fei Long
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文献类型：
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作者：
Xiaopeng Wei;Jian He;Yin Zhu;Zixiao Qin;Guoyuan Zheng;Rui Zhang;Shuyi Mo;Jilin Wang;D. Yao;B. Lin;Nan Tian;Bing Zhou;Fei Long
有机金属卤化物(OMHs)具有成本低、结构易于调整、光电性能优异等优点，在材料科学领域引起了广泛的关注。在本研究中，我们合成了一种新的有机卤化锰单晶，即。(C6H9N2)2MnI4。该单晶属于三斜晶系，具有中心对称的P-1空间群。黄色(C6H9N2)2MnI4的光学带隙(2.21 eV)接近窄禁带，具有较宽的激发范围，最佳激发波长为468 nm。在已报道的四面体配位的锰基OMHs发光材料中，黄绿荧光发射很少见。(C6H9N2)2MnI4还具有67%的荧光量子效率和44μ的荧光寿命S，可用于制作发光效率为9.61lm/W的发光二极管器件，从而扩大了有机卤化锰材料的应用。
Organic metal halides (OMHs) have attracted considerable attention in the field of materials science because of their low cost, easy structure adjustment, and excellent optoelectronic properties. In this study, we synthesized a new organic manganese halide single-crystal, viz. (C6H9N2)2MnI4. The single crystal belongs to the triclinic crystal system with a centrosymmetric P-1 space group. The optical bandgap (2.21 eV) of yellow (C6H9N2)2MnI4is close to the narrow bandgap and has a wide excitation range, with an optimal excitation wavelength of 468 nm. Among reported tetrahedrally coordinated manganese-based OMHs luminescent materials, yellow-green fluorescence emission is rare. (C6H9N2)2MnI4also has a high fluorescence quantum efficiency of 67% and a fluorescence lifetime of 44 μs, and can be used to fabricate a light-emitting diode (LED) device with a luminous efficiency of 9.61 lm/W, thus expanding the applications of organic manganese halide materials.