Orange-red phosphorescent crystal material, as well as preparation method and use thereof

A crystalline material, orange-red phosphorescence technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of environmental pollution, high cost, harsh preparation conditions, etc., and achieve the effects of good photostability, low cost and high luminous efficiency

Active Publication Date: 2012-06-27
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 preparation conditions are relatively harsh, and the cost is high, and it also causes certain pollution to the environment.

Method used

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  • Orange-red phosphorescent crystal material, as well as preparation method and use thereof
  • Orange-red phosphorescent crystal material, as well as preparation method and use thereof
  • Orange-red phosphorescent crystal material, as well as preparation method and use thereof

Examples

Experimental program
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Effect test

example 1

[0011] Example 1: (1) Weigh 25.0mg CuBr or CuBr 2 , 10.0mg of 2,5-bis(4-pyridine)-1,3,4-oxadiazole, 5mL of 25% ammonia water and 15mL of deionized water were added to a 30mL autoclave, and stirred at room temperature for 7h to obtain uniform mixing The solution. The mixed solution was heated at 220 °C for 35 h, then heated at 2 °C for 35 h. -1 cooled to room temperature at the cooling rate. After the reaction product was washed with water several times, red bulk crystals were obtained. The yield was calculated to be 55% based on the CuI used. Bright orange-red fluorescence can be seen under the irradiation of portable UV lamp BJRY26-4W.

[0012] (2) Weigh 55.0 mg of CuBr or CuBr 2 , 20.0mg of 2,5-bis(4-pyridine)-1,3,4-oxadiazole and 18mL of acetonitrile were added to a 40mL autoclave, and stirred at room temperature for 5h to obtain a well-mixed solution. The mixed solution was heated at 160 °C for 27 h, and then heated at 40 °C for 27 h. -1 cooled to room temperature a...

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Abstract

The invention provides an orange-red phosphorescent crystal material and a preparation method thereof. The chemical formula of the material is (Cu6(3,5-bis(4-pyridyl)-1,2,4-triazole)3Br3)n. 2,5-bis(4-pyridyl)-1,3,4-oxadiazole is taken as a bridging ligand, and the stable orange-red phosphorescent (Cu6(3,5-bis(4-pyridyl)-1,2,4-triazole)3Br3)n crystal material with higher luminous efficiency is prepared by a mild solvothermal or hydrothermal method. The prepared crystal material can emit bright orange-red fluorescence under ultraviolet light irradiation and is good in thermal stability and high in luminous efficiency.

Description

technical field [0001] The invention relates to a high-efficiency luminescent crystal material and a preparation method and application thereof, in particular to a triazole copper complex crystal luminescent material and a preparation method thereof. Background technique [0002] With the depletion of fossil energy, the pace of energy crisis is approaching. While developing renewable energy, improving the utilization rate of energy has also attracted great attention from countries all over the world. Currently, the electricity consumed by lighting accounts for more than 50% of the total global electricity generation. In order to effectively improve the utilization efficiency of energy, high-efficiency light-emitting materials with high energy conversion efficiency and can effectively avoid the high energy loss existing in conventional light-emitting materials have received more and more attention from the scientific and commercial circles. Phosphorescent materials can achi...

Claims

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Application Information

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IPC IPC(8): C09K11/06
Inventor 卢灿忠房贞兰余荣民杨文斌吴小圆
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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