Glass film containing rare earth ion doped K2LaCl5 microcrystal and preparation method thereof

Abstract

The invention discloses a glass film containing rare earth ion doped K2LaCl5 microcrystal and a preparation method thereof. The glass film is characterized by comprising the following components in percentage by mole: 78 percent of diboron trioxide, 8-15 percent of aluminum oxide, 6-11 percent of K2LaCl5 and 1-3 percent of a rare-earth chloride, wherein the rare-earth chloride refers to one of cerium chloride, europium chloride or terbium chloride. The glass film disclosed by the invention has the advantages that sol-gel refers to a low-temperature wet chemistry method glass preparation technology, and glass is obtained by precursor material hydrolysis and polymerization reaction process, and therefore, a film material can be prepared at a certain liquid viscosity. Moreover, due to low-temperature synthesis condition, decomposition and volatilization of chloride raw materials can be effectively prevented. Due to volatilization and decomposition of solvents, the glass prepared by the sol-gel method generates a certain micro-pores in the materials, and the micro-pores provide a good environment for generating nano chloride microcrystal, so that the phenomenon that non-uniformity of crystallization particles and glass devitrification are caused by chemical constituents of the melted glass and incomplete uniformity of crystallization treatment temperature can be avoided to a certain degree.

Description

technical field [0001] The invention relates to a rare earth ion-doped microcrystalline glass film, in particular to a rare earth ion-doped K 2 LaCl 5 Microcrystalline glass film and its sol-gel preparation method. Background technique [0002] Scintillation material is a photofunctional material that can emit visible light under the excitation of high-energy rays (such as x-rays, γ-rays) or other radioactive particles, and 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 fields such as medical imaging and security inspection, there is a large demand for new scintillation materials with high performance. Excellent scintillation materials mainly have the following properties: high luminous efficiency, high material density, fast fluorescence decay, good radiation resistance and low production cost. [0003] As far as the cur...

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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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