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Yellow phosphor crystal material as well as preparation method and usage thereof

A technology of crystal materials and phosphorescence, applied in the direction of luminescent materials, chemical instruments and methods, applications, etc., can solve the problems of environmental pollution, harsh preparation conditions, high cost, etc., and achieve good light stability, low cost, and thermal stability high effect

Inactive Publication Date: 2012-06-20
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since most crystal luminescent materials are prepared by high-temperature pulling method or molten salt method, the requirements for preparation conditions are relatively strict, and the cost is high, and it also causes certain pollution to the environment.

Method used

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  • Yellow phosphor crystal material as well as preparation method and usage thereof
  • Yellow phosphor crystal material as well as preparation method and usage thereof
  • Yellow phosphor crystal material as well as preparation method and usage thereof

Examples

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Effect test

example 1

[0012] Example 1: (1) Weigh 120.0mg CuI, 40.0mg 1,4-bis(2-methylimidazole)butane and 10mL water into a 20mL autoclave, and stir at room temperature for 5h to obtain a homogeneous solution . The mixed solution was heated at 80°C for 72 h, and then cooled to room temperature. After washing the reaction product with water several times, yellow massive crystals were obtained. Based on the CuI used, the yield is 62.5%. Bright yellow fluorescence can be seen when irradiated with a portable UV lamp BJRY26-4W.

[0013] (2) Weigh 300.0 mg CuI, 80.0 mg 1,4-di-2-methylimidazole) butane and 30 mL deionized water into a 50 mL autoclave, and stir at room temperature for 5 hours to obtain a uniformly mixed solution. The mixed solution was heated at 120℃ for 120h, and then at 2℃h -1 Cool down to room temperature at a cooling rate. After washing the reaction product with water several times, yellow massive crystals were obtained. Based on the CuI used, the yield is 75.5%. Yellow fluorescenc...

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Abstract

The invention provides a yellow phosphor crystal material as well as the preparation method and the usage thereof. The chemical formula of the material is [Cu6 (1, 4-two (2- methylimidazole 1-group) butane) 3 I 6] n. 1, 4- two (2-methylimidazole 1-group) butane is taken as a bridging ligand, and stable and higher luminous efficiency yellow phosphor 1, 4-two (2-methylimidazole 1-group) butane crystal material is prepared through temperate solvothermal or hydro-thermal method. The obtained crystal material can emit bright and yellow phosphorescence under the illumination of an ultraviolet lamp, the thermal stability is good, and the luminous efficiency is high.

Description

Technical field [0001] The invention relates to a high-efficiency luminescent crystal material and a preparation method and application thereof, in particular to an imidazole copper complex crystal luminescent material and a preparation method thereof. Background technique [0002] With the depletion of fossil energy, the energy crisis is approaching. While developing renewable energy, improving energy utilization has also attracted great attention from countries all over the world. At present, the electricity consumed by lighting accounts for more than 50% of the total global power generation. In order to improve energy utilization efficiency, high-efficiency luminescent materials that have higher energy conversion efficiency and can effectively avoid the higher energy loss in conventional luminescent materials have attracted more and more attention from the scientific and commercial circles. Phosphorescent materials can achieve phosphorescent emission that mixes singlet and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F1/08C09K11/06C09D11/02C09D11/00
Inventor 王瑞虎房贞兰
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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