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Novel tolyltriazole complex efficient fluorescent crystal material and preparation method thereof

A technology of copper triazole and fluorescent crystals, which is applied in luminescent materials, copper organic compounds, chemical instruments and methods, etc., can solve the problems of environmental pollution, high cost, harsh preparation conditions, etc., and achieves good photostability and low cost. , the effect of high luminous efficiency

Active Publication Date: 2012-06-20
见喜纳米材料技术研发(河南)有限公司
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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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  • Novel tolyltriazole complex efficient fluorescent crystal material and preparation method thereof
  • Novel tolyltriazole complex efficient fluorescent crystal material and preparation method thereof
  • Novel tolyltriazole complex efficient fluorescent crystal material and preparation method thereof

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example 1

[0019] Example 1: (1) Weigh 200.0 mg CuI, 40.0 mg 2,5-bis(3-pyridine)-1,3,4-oxadiazole, add 1 ml 25% ammonia water and 10 ml deionized water to 15 ml In an autoclave, and stirred at room temperature for 5 h to obtain a mixed solution. The mixed solution was heated at 180 °C for 72 h, then at 3 °C h -1 Cool down to room temperature at a cooling rate. After the obtained precipitate was washed with water several times, yellow blocky crystals were obtained. The yield was calculated to be 52.5% based on the CuI used. Bright yellow luminescence can be seen when irradiated with a 4W hand-held fluorescent light.

[0020] (2) Weigh 300.0 mg CuI, 20.0 mg 2,5-bis(3-pyridine)-1,3,4-oxadiazole, 10 ml 25% ammonia water and 24 ml deionized water into a 50 ml autoclave and stirred at room temperature for 15 h to obtain a mixed solution. The mixed solution was heated at 80 °C for 120 h, then at 2 °C h -1 Cool down to room temperature at a cooling rate. After the obtained precipitate was...

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Abstract

The invention discloses a novel tolyltriazole complex efficient fluorescent crystal material and a preparation method thereof, and relates to the preparation of efficient fluorescent crystal materials. The novel tolyltriazole complex efficient fluorescent crystal material comprises [Cu3(3,5-bi(3-pyridine)-1,2,4-tolyltriazole)I2]n. 3,5-bi(3-pyridine)-1,2,4-tolyltriazole generated by a ring conversion reaction of 2,5-bi(3-pyridine)-1,3,4-oxadiazole is used as a ligand, and a stable [Cu3(3,5-bi(3-pyridine)-1,2,4-tolyltriazole)I2]n crystal material with high luminous efficiency is prepared by a mild hydrothermal method. The single crystal property, the thermal stability and the efficient luminous property of a luminous crystal material are described by X-ray single crystal diffraction, X-ray powder diffraction, an infrared absorption spectrum, a thermogravimetric curve, an excitation spectrum, an emission spectrum, an absorption spectrum and the like. The obtained crystal material can emit bright yellow light under the irradiation action of a fluorescent lamp.

Description

technical field [0001] The invention relates to a high-efficiency luminescent crystal material and a preparation method thereof, in particular to a triazole copper complex crystal luminescent material and a preparation method thereof. [0002] Background technique [0003] With the depletion of fossil energy, the energy crisis is approaching. While developing renewable energy, improving the utilization rate of energy has also attracted great attention from all over the world. Currently, lighting consumes more than 50% of the world's total power generation. In order to effectively improve energy utilization efficiency, high-efficiency luminescent materials that have high energy conversion efficiency and can effectively avoid the high energy loss in conventional luminescent materials have attracted more and more attention from the scientific and commercial communities. To achieve a higher quantum yield of luminescent materials, optical materials must be able to convert the ...

Claims

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Application Information

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IPC IPC(8): C07F1/08C09K11/06
Inventor 卢灿忠房贞兰余荣民吴小圆
Owner 见喜纳米材料技术研发(河南)有限公司
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