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Cerium sodium phosphate crystal material capable of transmitting light of ultraviolet radiation

A technology of luminescent crystal and sodium phosphate, applied in the direction of luminescent materials, chemical instruments and methods, etc.

Inactive Publication Date: 2007-02-21
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The luminescence of these materials is in the visible region, and the luminescence of the material body in the ultraviolet region is rarely reported.

Method used

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  • Cerium sodium phosphate crystal material capable of transmitting light of ultraviolet radiation
  • Cerium sodium phosphate crystal material capable of transmitting light of ultraviolet radiation

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Embodiment Construction

[0013] As for the synthesis of sodium cerium phosphate crystals, it is formed by melting at 1273K by high-temperature solid-phase synthesis method and slowly cooling down to crystallize. The consumption and stoichiometric ratio of chemical reagent used are as follows:

[0014] Na 2 CO 3 0.318(3mol) Erqing Reagent Factory, Lanxi City, Zhejiang Province AR purity ≥99.8%

[0015] CeO 2 0.172(1mol) Shantou Guanghua Chemical Factory AR purity ≥97.0%

[0016] NH 4 h 2 PO 4 1.15 (10mol) Sinopharm Chemical Reagent Co., Ltd. GR purity ≥ 99.0%

[0017] The specific operation method is as follows:

[0018] Accurately weigh with an analytical balance according to the molar ratio of 3:1:10, put the weighed reagent into the agate grinding body in the fume hood, grind it thoroughly to mix it evenly, and then put the sample into a platinum crucible. In order to make the post-reaction go smoothly, put it into a box furnace for pre-calcination and grinding at 300°C. Fin...

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Abstract

This invention discloses a UV-luminescent sodium cerium phosphate crystal material, which has the crystal form of orthorhombic system, and the space group of Pnma; a = 8.6202, b = 5.2907, c = 12.6800, alpha = beta = gamma = 90degree, and V = 578.305. The crystal is synthesized by: completely grinding the raw materials, mixing uniformly in a Pt crucible, placing in a carbinet furnace, heating for synthesis, keeping temperature at the highest point, and cooling slowly to room temperature to obtain sodium cerium phosphate monocrystal. The crystal material can be used in small-scale and high-power solid lasers.

Description

technical field [0001] The invention relates to a novel photoluminescent material, in particular to a novel ultraviolet luminescent crystal material sodium cerium phosphate. Background technique [0002] At present, researchers at home and abroad are working hard to develop luminescent materials with different wavelength bands to meet the needs of practical applications. For example, Ginya Adachi of Osaka University and Li Wenlian of the Institute of Physics, Chinese Academy of Sciences in Changchun, my country, studied Eu 2+ and Ce 3+ The polymer light-emitting materials, the ligands are 15C5-crown ether group polymethyl methacrylate (PMA) or 18C6-crown ether group polymethacrylate [0003] methyl acrylate. The luminous energy of these two materials is mainly based on Eu 2+ and Ce 3+ The f→d allows the absorption of the transition. Under the irradiation of ultraviolet light, the former emits blue light and the latter emits purple light. In addition, CaS:Bi, the sulfi...

Claims

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Application Information

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IPC IPC(8): C09K11/77
Inventor 朱静程文旦张浩龚亚京吴东升阚子规童华南
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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