Preparation method of glass and glass film containing rare earth ion doped lanthanum chloride microcrystalline

Abstract

The invention discloses a sol-gel preparation method of glass and a glass film containing rare earth ion doped lanthanum chloride microcrystalline. The preparation method is characterized in that the glass or the glass film is prepared from 87-89 mol% of tetraethoxysilane, 10 mol% of lanthanum chloride and 1-3 mol% of rare-earth chloride; the analytically pure preparation raw materials are weighed, and the rare-earth chloride is cerium chloride or europium chloride or terbium chloride for use. The preparation method has the advantages that sol-gel is the low-temperature wet chemistry method glass preparation technology, glass is obtained through the precursor raw material hydrolysis and polymerization chemical reaction process so that the film material can be prepared under a certain liquid viscosity, and decomposition and volatilization of chloride raw materials can be effectively prevented under the low-temperature synthesis condition. According to the glass prepared through the sol-gel method, certain microholes are formed in the material due to decomposition and volatilization of a solvent, the microholes provide a good environment for generation of nanometer chloride microcrystalline, and therefore the problems of crystallization particle nonuniformity and glass devitrification caused by incomplete uniformity of crystallization processing temperature and chemical compositions of molten glass can be solved to a certain degree.

Description

Technical field [0001] The invention relates to a preparation technology of glass and glass film containing rare earth ion doped microcrystals, in particular to a scintillation material containing rare earth ion doped lanthanum chloride (LaCl 3 ) Sol-gel preparation method of microcrystalline glass and glass film. Background technique [0002] Scintillation material is a kind of light functional material that can emit visible light under the excitation of high energy rays (such as x-rays, gamma rays) or other radioactive particles. It can be widely used in nuclear medicine diagnosis, security inspection, anti-terrorism, high-energy physics and geological exploration And other fields. In recent years, with the rapid development of medical imaging and security inspection, there is a large demand for new high-performance scintillation materials. Excellent scintillation materials mainly have the following properties: high luminous efficiency, high material density, fast fluorescence...

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Problems solved by technology

Usually thin film and fibrous materials are the most suitable raw materials for making such devices, so the current form of scintillation materials will have great restrictions on the development of future devices

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