Manganese complex luminescent material as well as preparation method and application thereof

A technology of luminescent materials and manganese complexes, applied in luminescent materials, organic chemical methods, chemical instruments and methods, etc., can solve the problems of high fineness of growth conditions, high toxicity of lead perovskite materials, limited development and application, etc. , to achieve the effects of abundant reserves, stable luminescent performance, and easy control of reaction conditions

Inactive Publication Date: 2019-09-20
NINGBO UNIV
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  • Abstract
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Problems solved by technology

The existing organic-inorganic hybrid luminescent materials are mainly lead-halide perovskite materials, and the quantum yield of such materials is mostly below 50%, and there are few literature reports on lead-halide perovskite with an excess quantum yield of more than 50%. Material
In addition, most of the solvents used in the cultivation of lead halide perovskite materials are hydrohalic acids, which require high precision of the growth conditions and cause great damage to the equipment. The obtained perovskite materials contain highly toxic lead. All stages of use and recycling may cause pollution to the environment, which limits its further development and application

Method used

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  • Manganese complex luminescent material as well as preparation method and application thereof
  • Manganese complex luminescent material as well as preparation method and application thereof
  • Manganese complex luminescent material as well as preparation method and application thereof

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] 1. Specific examples

[0026] A kind of manganese complex luminescent material, its chemical structural formula is [(C 7 h 10 N) 2 ]MnBr 4 ,Specific steps are as follows:

[0027] (1) [(C 7 h 10 N) 2 ]MnBr 4 Synthesis of complexes

[0028] N-ethylpyridinium bromide C 7 h 10 NBr and manganese bromide tetrahydrate MnBr 2 4H 2 O is weighed in a beaker at a molar ratio of 2:1, the beaker is placed in a blast drying oven and heated to 180°C for 2-4 hours until the solids in the beaker are all melted and no longer bubbles, and the temperature is naturally cooled to room temperature to obtain [ (C 7 h 10 N) 2 ]MnBr 4 solid complexes;

[0029] (2) [(C 7 h 10 N) 2 ]MnBr 4 Complex purification

[0030] Grind the solid complex obtained in step (1) into powder and pour it into a beaker, use acetonitrile as a solvent, heat to ...

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Abstract

The invention discloses a manganese complex luminescent material as well as a preparation method and application thereof. The chemical structural formula of the luminescent material is [(C7H10N)2]MnBr4. The preparation method comprises the following steps: synthesis of a MnBr2.4H2O[(C7H10N)2]MnBr4 complex from N-ethylpyridine bromide (C7H10NBr) and manganese bromide tetrahydrate; purification of the [(C7H10N)2]MnBr4 complex; and finally, single crystal culture of the [(C7H10N)2]MnBr4 complex to obtain a transparent single crystal, i.e., the manganese complex luminescent material. The manganese complex luminescent material has application value in preparation of scintillators for X-ray scanning imaging, and has ultrahigh quantum yield.

Description

technical field [0001] The invention relates to a luminescent material, in particular to a manganese complex luminescent material and its preparation method and application. Background technique [0002] Luminescent materials are a class of materials that can absorb some form of energy and convert the absorbed energy into light radiation. Luminescent materials have attracted extensive attention due to their great application potential in fluorescence analysis, road traffic signs, fluorescent light collectors, bioimaging, lighting, data storage, and flat panel displays. At present, the most widely used is inorganic solid luminescent materials doped with rare earth ions. Rare earth luminescent materials are widely used in display imaging, new light sources, X-ray intensifying screens, etc. aspect. At present, the main factors that limit the further development of rare earth luminescent materials are: (1) The earth reserves of rare earth elements such as cerium, praseodymium,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F13/00C09K11/06G01T1/20
CPCC07B2200/13C07F13/005C09K11/06C09K2211/188G01T1/2012
Inventor 潘建国李凌燕潘尚可李嫚耿巨峰王昊宇
Owner NINGBO UNIV
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