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Ultraviolet luminous crystal material sodium gadolinium polyphosphate

A technology of light-emitting crystals and sodium polyphosphate, which is applied in phosphorus compounds, rare earth metal compounds, inorganic chemistry, etc., and can solve problems such as doping

Inactive Publication Date: 2007-08-01
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

Unfortunately, these studies on the ultraviolet luminescence of gadolinium are limited to doping in various inorganic, organic and glass matrices, and the research on the ultraviolet luminescence of gadolinium-containing materials is still blank

Method used

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  • Ultraviolet luminous crystal material sodium gadolinium polyphosphate

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Embodiment Construction

[0010] As for the synthesis of sodium gadolinium polyphosphate crystals, it is formed by melting at 700°C 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:

[0011] Na 2 CO 3 0.371g (3.5mol) AR of Lanxi Erqing Reagent Factory, Zhejiang Province, purity ≥ 99.8%

[0012] Gd 2 o 3 0.182g (0.5mol) Sinopharm Chemical Reagent Co., Ltd. GR purity ≥ 99.O%

[0013] NH 4 h 2 PO 4 1.38g (12mol) Sinopharm Chemical Reagent Co., Ltd. GR purity ≥ 99.0%

[0014] The specific operation method is as follows:

[0015] Accurately weigh with an analytical balance according to the molar ratio of 3.5:0.5:12, 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 grindi...

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Abstract

The invention discloses a new-typed sodium gadolinium polyphosphate with molecular formula at NaGd (PO3) 4 in the monoclinic system (the spatial group is P21 / n; a is 7.19; b is 13.07; c is 9.82; beta is 90.6 deg; V is 922.9 3), which comprises the following steps: adopting high-temperature solid-phase method to synthesize single crystal of sodium gadolinium polyphosphate; grinding evenly; placing raw material into platinum copple; heating in the box-typed stove; insulating at the hottest temperature; cooling slowly; cooling to indoor temperature; obtaining the product; fitting for small-sized high-power solid laser.

Description

technical field [0001] The invention relates to a novel photoluminescent material, in particular to a novel ultraviolet luminescent crystal material sodium gadolinium polyphosphate. Background technique [0002] Rare earth elements have unique optical properties due to their unique 4f electron layer structure. Therefore, researchers at home and abroad are working hard to develop new rare earth ultraviolet luminescent materials to meet the needs of practical applications. For example, Vetter et al. studied the ultraviolet luminescence properties of gadolinium-doped AlN at 318nm. Gadolinium-doped ZnF by Miura et al. 2 A UV emission at 311.5nm was found in the film, which can be attributed to the 6P7 / 2-->8S7 / 2 transition of gadolinium atoms. Unfortunately, these studies on the ultraviolet luminescence of gadolinium are limited to doping in various inorganic, organic and glass matrices, and the research on the ultraviolet luminescence of gadolinium-containing materials is s...

Claims

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Application Information

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IPC IPC(8): C01B25/40C01F17/00
Inventor 朱静程文旦张浩龚亚京吴东升童华南赵丹
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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