Tellurium oxide and antimonic fluoride system matrix glass and preparation method thereof

Abstract

The invention relates to fluorotellurite glass and a preparation method thereof. The fluorotellurite glass is simple in proportion of components, easy in obtaining of the components and good in stability; furthermore, in introduced antimony fluoride, as heavy metal, antimony ions can significantly improve the glass formation ability of a tellurate system, and improves the system optical absorption capacity, thus enabling the infrared cut off of a glass system to offset towards a long wavelength band, and further realizing excellent optical performance; therefore, excellent oxyfluoride tellurate matrix glass is obtained. The fluorotellurite glass is smaller in glass formation range; the ratio of TeO2 to SbF3 is moderate, so that the glass is small in crystallization tendency, has good physical and chemical stability, can be used as rare earth ion-doped matrix glass, and also can form a new glass system by adding other fluorides or oxides; therefore, the fluorotellurite glass has good development and technology application prospects.

Description

technical field [0001] The invention relates to a fluorotellurate glass and a preparation method thereof, in particular to a tellurium oxide and antimony fluoride system matrix glass and a preparation method thereof. Background technique [0002] Tellurite glass usually has low phonon energy, which can reduce the non-radiative transition probability generated by multiphonon relaxation and improve its quantum efficiency, and has a high refractive index, high insulation coefficient, low melting temperature and wide Excellent properties such as infrared transmission range, so it has a wide range of technical applications in the fields of optical communication and low melting point glass. [0003] Compared with the traditional silicate system glass, the tellurate system glass has a higher solubility of rare earth ions, and its stability and corrosion resistance are also better than fluoride glass, so it is an ideal up-conversion luminescent host material. Introducing fluoride i...

AI Technical Summary

Problems solved by technology

[0010] The glass transition temperature of the reported tellurite is low, the thermal stability is poor, and the glass is easy to crystallize and phase separate, which in turn leads to high brittleness and cracking of the glass, making it difficult to prepare large pieces of glass.

Although a few studies have obtained some fluorine-containing tellurite glasses, most of them have complex components and poor stability, which are not suitable for repeated preparation and storage in batches, hindering their further application.