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Preparation and application of organic tin-halogen compound luminescent material

A technology of halogen compounds and luminescent materials, applied in tin organic compounds, luminescent materials, chemical instruments and methods, etc., can solve the problems of high toxicity and high cost of raw materials, achieve high luminescent properties, simple synthesis and preparation methods, and cheap and easy-to-obtain raw materials Effect

Inactive Publication Date: 2018-05-15
SHANGHAI TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most commercial phosphor materials are rare earth-based inorganic materials, which have problems such as high raw material cost and high toxicity.
Preparation of high-quality phosphors from cheap and non-toxic elements has become a major challenge in this field

Method used

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  • Preparation and application of organic tin-halogen compound luminescent material
  • Preparation and application of organic tin-halogen compound luminescent material
  • Preparation and application of organic tin-halogen compound luminescent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of hexamethylenediamine tin bromide, concrete steps are:

[0036] Weigh 278 mg (1 mmol) of tin dibromide and 834 mg (3 mmol) of hexamethylenediamine bromide into a 20 ml sample bottle, and add 5 ml of DMF to fully dissolve it. The obtained clear and transparent solution was filtered with a 0.22um microporous membrane, 25ml of dichloromethane was added, allowed to stand still and allowed to crystallize and precipitate. After 12 hours, the precipitation was complete, and the supernatant was slowly poured out, and then 25ml of dichloromethane was added to wash the precipitate. After repeated operations twice, the solid was taken out and dried naturally in an anhydrous oxygen environment to obtain a white granular solid hexamethylenediamine bromide Tin, the fluorescence quantum yield is 86% measured by the hyperbolic method, and its crystal structure is as figure 1 As shown, its XRD pattern is as figure 2 Its absorption and emission spectra are sho...

Embodiment 2

[0038] The preparation method of butylamine tin bromide, concrete steps are:

[0039] Weigh 278 mg (1 mmol) of tin dibromide and 924 mg (6 mmol) of octylamine bromide into a 20 ml sample bottle, and add 5 ml of DMF to fully dissolve it. The obtained clear and transparent solution was filtered with a 0.22um microporous membrane, 25ml of dichloromethane was added, allowed to stand still and allowed to crystallize and precipitate. After 12 hours, the precipitation was complete, and the supernatant was slowly poured out, and then 25ml of dichloromethane was added to wash the precipitate. After repeated operations twice, the solid was taken out and dried naturally in an anhydrous oxygen environment to obtain a white flaky solid butylamine bromide Tin, the fluorescence quantum yield measured by the hyperbolic method is 82%, and its XRD pattern is as follows image 3 shown.

Embodiment 3

[0041] The preparation method of hexylamine tin bromide, concrete steps are:

[0042] Weigh 278mg (1mmol) of tin dibromide and 1092mg (6mmol) of octylamine bromide into a 20ml sample bottle, and add 5ml of DMF to fully dissolve it. The obtained clear and transparent solution was filtered with a 0.22um microporous membrane, 25ml of dichloromethane was added, allowed to stand still and allowed to crystallize and precipitate. After 12 hours, the precipitation was complete, and the supernatant was slowly poured out, and then 25ml of dichloromethane was added to wash the precipitate. After repeated operations twice, the solid was taken out and dried naturally in an anhydrous oxygen environment to obtain a white flaky solid hexylamine bromide Tin, the fluorescence quantum yield measured by the hyperbolic method is 62%, and its XRD pattern is as follows image 3 shown.

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Abstract

The invention provides a preparation method of an organic tin-halogen compound luminescent material. The preparation method is characterized by comprising a step 1: dissolving a tin-source compound and an organic amine compound in an organic solvent, so as to obtain a solution A; a step 2, adding an organic solvent B into the solution A, standing, depositing, pouring out a supernatant solution, and drying an obtained solid, so as to obtain the organic tin-halogen compound luminescent material. An organic tin-halogen compound prepared by the preparation method has no toxicity, a low cost and asimple preparation process, and has a fluorescence quantum yield, which exceeds 80 percent, under the excitation of ultraviolet light, and a composite organic high molecular block based on the material can be used for preparing a luminescent device.

Description

technical field [0001] The invention relates to the synthesis and application of a novel organic tin halide luminescent material, which belongs to the field of synthesis of organic-inorganic hybrid materials and fluorescent materials. Background technique [0002] With the continuous growth of world population and the rapid development of social economy. Seeking and developing energy-saving, environment-friendly and high-efficiency engineering materials is a necessary condition for sustainable development. In the field of display lighting, high-brightness, high-quantum-yield luminescent materials are an important part of energy-saving and environmentally friendly lamps and have received widespread attention. [0003] Since the advent of low-pressure mercury lamps, scientists have developed a large number of fluorescent materials for luminescent lighting under ultraviolet excitation. Compared with traditional incandescent lamps, its energy consumption cost is significantly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/22C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07F7/22C09K2211/10H10K85/60H10K50/00
Inventor 宁志军龚晋慷付鹏飞尚跃群
Owner SHANGHAI TECH UNIV
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