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Yellowish green luminous chiral polymer crystal material

A crystal material, yellow-green technology, applied in luminescent materials, zinc organic compounds, climate sustainability, etc., can solve problems such as poor thermal stability, low luminous efficiency, easy to be oxidized and decomposed

Inactive Publication Date: 2011-05-04
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

Organic fluorescent materials have the advantages of rich structures and easy control of fluorescence intensity and color, but their thermal stability is poor and they are easily oxidized and decomposed, which limits their application range.
On the contrary, inorganic fluorescent materials have the advantages of high stability and not easy to be oxidized, but their fluorescent color is not as easy to adjust as organic fluorescent materials, and the luminous efficiency is low

Method used

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  • Yellowish green luminous chiral polymer crystal material
  • Yellowish green luminous chiral polymer crystal material
  • Yellowish green luminous chiral polymer crystal material

Examples

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Embodiment Construction

[0015] Synthesis of HONCP: Weigh 0.42g (2mmol) 1,10-phenanthroline-5,6-diquinone, 0.30g (2mmol) 2-carboxybenzaldehyde and 3.2g ammonium acetate, dissolve in 20ml acetic acid, and reflux for 2 hours , a yellow precipitate formed. After cooling, 25 ml of distilled water was added to the reaction solution, and then the pH value of the solution was adjusted to 5.5 with concentrated ammonia water. Filter, wash the precipitate with distilled water and acetone, and dry at 60° C. to obtain the pure yellow product HONCP (yield 65%, based on 1,10-phenanthroline-5,6-diquinone).

[0016] [Zn(H 2 O)(ONCP)Cl] n Synthesis of: 0.08g (0.6mmol) ZnCl 2 , 0.17g (0.5mmol) of HONCP and 25ml of distilled water were mixed, placed in a reaction kettle, hydrothermally reacted at 140°C, and kept at a constant temperature for 3 days, then slowly cooled to room temperature, and crystals formed. Filtration, washing with water and acetone gave pure yellow crystals (80% yield based on HONCP). The crysta...

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Abstract

The invention relates to a yellowish green luminous crystal material. The chemical formula of the crystal material is [Zn(H2O) (ONCP) Cl]n; the crystal material belongs to a monoclinic crystal system; a space group is P21; beta is equal to 91.92 (2) degrees; alpha and gamma are equal to 90 degrees; Z is equal to 2; and [Zn(H2O) (ONCP) Cl]n monocrystal is synthesized by a hydrothermal method. The crystal is obtained by performing a hydrothermal reaction on ZnCl2 and a ligand HONCP which serve as reaction raw materials at the temperature of 140 DEG C, preserving heat for three days and slowly cooling to room temperature. The crystal material can be applied to the research and development of white light-emitting diodes.

Description

technical field [0001] The invention relates to the field of novel photoluminescent materials. Background technique [0002] In the 1990s, the technological breakthroughs and industrialization of blue light diodes and long-wave ultraviolet laser diodes greatly promoted and realized the development of white light-emitting diodes (WLEDs), which became a major achievement in the fields of optoelectronics and lighting engineering technology. [0003] White light is a mixture of multiple colors of light. According to the principle of luminescence, white light can be mixed with blue light and yellow light, and can also be mixed with blue, green and red primary color lights. In order to obtain white light with high efficiency, high color rendering index and different color temperatures, multi-primary color light combinations can also be used. Phosphors used as white light LEDs have special requirements: the excitation spectrum of the phosphors matches the excitation light of the ...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F3/06
CPCY02B20/00
Inventor 吴克琛韦永勤
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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