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Cu3(CN)3NH3 crystal-based novel strong fluorescent material and preparation method thereof

A fluorescent material and a new type of technology, applied in the directions of luminescent materials, chemical instruments and methods, cyanamide, etc., can solve problems such as no practical application value, and achieve the effects of low cost, high thermal stability and high luminous efficiency

Active Publication Date: 2012-04-11
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the crystalline materials prepared by the mild water / solvothermal method are inorganic-organic hybrid materials. This type of material is easy to change under the condition of light or heat, and has no practical application value.

Method used

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  • Cu3(CN)3NH3 crystal-based novel strong fluorescent material and preparation method thereof
  • Cu3(CN)3NH3 crystal-based novel strong fluorescent material and preparation method thereof
  • Cu3(CN)3NH3 crystal-based novel strong fluorescent material and preparation method thereof

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Effect test

example 1

[0015] Example 1: (1) Weigh 200.0mg CuCN, 40.0mg 2,5-bis(4-benzonitrile)-1,3,4-oxadiazole, 1ml25% ammonia water and 14ml deionized water into a 20ml autoclave , and stirred at room temperature for 5 h to obtain a mixed solution. The mixed solution was heated at 180°C for 72h, then heated at 3°Ch -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 CuCN used. Bright yellow luminescence can be seen when irradiated with a 4W hand-held fluorescent light.

[0016] (2) Weigh 300.0mg CuCN, 20.0mg 2,5-bis(4-benzonitrile)-1,3,4-oxadiazole, 10ml 25% ammonia water and 24ml deionized water into a 20ml autoclave, And stirred at room temperature for 15 h to obtain a mixed solution. The mixed solution was heated at 80°C for 120h, and then heated at 2°Ch -1 Cool down to room temperature at a cooling rate. After the obtained precipita...

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Abstract

The invention discloses a Cu3(CN)3NH3 crystal-based novel strong fluorescent material and a preparation method thereof, and relates to preparation of a high-efficiency luminous crystal material. The component of the Cu3(CN)3NH3 crystal material prepared by the method is [Cu3(CN)3NH3]n. The stable Cu3(CN)3NH3 crystal material with high luminous efficiency is prepared by a mild hydrothermal method on 2,5-bis(4-cyanophenyl)-1,3,4-oxadiazole serving as a template. 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 show the single crystal characteristic, heat stability and high-efficiency luminous characteristic of the luminous crystal material; and the obtained crystal material can emit bright yellow light when irradiated by a fluorescent lamp.

Description

technical field [0001] The present invention relates to high-efficiency luminescent crystal material and preparation method thereof, especially [Cu 3 (CN) 3 NH 3 ] Crystal luminescent material and preparation method thereof. Background technique [0002] High-efficiency luminescent materials, because their high energy conversion efficiency can effectively avoid the high energy loss in low-efficiency luminescent materials, and thus effectively improve energy utilization efficiency, have received more and more attention. Optical crystal materials, due to their better crystallization properties, can avoid the strong non-radiative relaxation effect existing in amorphous materials, so they greatly improve the luminous efficiency. In addition, because they have relatively stable photophysical and photochemical properties and can maintain stability in a wide temperature range, they can be used as practical luminescent materials, so they are becoming a research hotspot for effici...

Claims

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Application Information

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IPC IPC(8): C01C3/16C09K11/58
Inventor 卢灿忠房贞兰余荣民
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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