Preparation method and preparation materials of Er-doped lithium niobate porous material

Abstract

The invention discloses a preparation method and preparation materials of an Er-doped lithium niobate porous material. The preparation method comprises the following steps: preparing an Er-doped lithium niobate crystal material and deionized water which are utilized as raw materials into Er-doped lithium niobate minicrystals by using artificial and mechanical lapping methods; selecting the minicrystals with a proper grain size by utilizing a filtration method; and finally, preparing the Er-doped lithium niobate porous material through utilizing a drying and hardening or sintering method, wherein the size of an Er-doped lithium niobate particle in the porous material is between 100nm and 2mu m, the luminous wave length of the Er-doped lithium niobate porous material is located at multiple wavebands ranging from 400nm-1600nm, the selectable excitation wavelength is located at multiple wavebands ranging from 380nm-1500nm, and the Er-doped lithium niobate porous material has a down-conversion luminescence characteristic and an up-conversion luminescence characteristic. According to the invention, the problems that the existing luminous porous material is lack in luminous wavebands, the selectable pumping light wavelength range is narrow and the porous material capable of being applied to up-conversion luminescence is extremely less are solved.

Description

Technical field: [0001] The invention belongs to the field of photonic material preparation, and relates to a method for preparing an erbium-doped lithium niobate porous material and the erbium-doped lithium niobate porous material prepared by the method. The porous material can be used for inorganic porous materials, fluorescent materials and display materials. Background technique: [0002] At present, porous materials have been widely used in molecular sieves, light-emitting display devices, random laser gain media, filter devices, biomimetic material preparation, etc., and porous materials with luminescent properties are especially promising in optoelectronic research and industrial applications. substitute role. In addition, since the luminescent porous material has a large-angle luminescence characteristic, it can be used as a basic material for laser display. In 1999, Cao H. et al realized coherent random laser output by using ZnO porous material. In addition, becau...

AI Technical Summary

Problems solved by technology

The erbium-doped lithium niobate porous material prepared by this preparation method overcomes the problems of insufficient luminescent wavelength range of existing luminescent porous materials and the small wavelength range of pump light that can be selected, and can be applied to up-conversion luminescence