Preparation method of visible light absorption type upper conversion luminescent material

A luminescent material and absorption type technology, applied in the directions of luminescent materials, chemical instruments and methods, etc., can solve the problem of no up-conversion luminescent material research reports, etc., and achieve the effects of uniform size, uniform doping, and simple process
CN101775290AInactive Publication Date: 2010-07-14NORTHWEST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHWEST UNIV
Publication Date
2010-07-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a preparation method of a visible light absorption type upper conversion luminescent material, which comprises the following steps: mixing N-butyl titanate and absolute ethyl alcohol or normal butanol for obtaining a solution A; continuously stirring the solution for 30 minutes; slowly dripping glacial acetic acid or ethanol or ethanol acetic acid or propanol acetic acid in the solution A; stirring the mixture at the room temperature to obtain a solution B; adding a proper amount of diethanolameine to be used as catalysts; stirring the materials for a period; dissolving one or two kinds of materials of yttrium oxide and rare earth compounds in nitric acid to obtain turbid liquid; stirring the turbid liquid to obtain a transparent clarified solution C; placing the transparent clarified solution C at the room temperature to be cooled; slowly dripping the solution C into the solution B which is stirred at a high speed to obtain a mixed solution G; continuously stirring the solution G for two hours; pouring the solution G into a culture dish for stilling standing and ageing for obtaining stable, uniform and transparent rose pink sol; and obtaining the upper conversion luminescent material through drying, grinding and calcining the sol.
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Description

technical field

[0001] The invention relates to the technical field of synthesis of rare earth luminescent materials, in particular to a preparation method of a rare earth doped up-conversion luminescent material that uses visible light as an excitation source and emits deep ultraviolet, ultraviolet and blue light. Background technique

[0002] Rare earth ion-doped up-conversion luminescent materials have always been a hot topic in the field of rare earth luminescent materials. It has broad application prospects in optical storage, optical communication systems, night vision systems, biomarkers, three-dimensional displays and sensors. Rare-earth up-conversion luminescent materials are attracting attention because of the difficulty in preparing such materials and the variety of them. Among them, fluoride is a good upconversion matrix material due to its low phonon energy and strong solubility to rare earth ions, but due to the toxicity, corrosion, and poor chemical and mechan...

Claims

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