Preparation method of solid luminescent material

Abstract

The invention discloses a preparation method of a solid luminescent material. The preparation method comprises the steps of respectively taking and weighting rare earth metal salt solution of 0.1M andpH equal to 0-6 and transition metal oxide nano-plate sol according to a volume ratio of 0.05-1:1; and slowly dropping the rare earth metal salt solution into the transition metal oxide nano-plate sol, evenly mixing for coagulation, centrifuging for supernatant removal, and precipitating the collected lower layer for rotary evaporation under vacuum at temperature of 70 DEG C, thus obtaining the solid luminescent material. The preparation method has the advantages of simple operation technology, short reaction period, good luminous intensity of the prepared solid luminescent material, and thelike.

Description

technical field [0001] The invention relates to the preparation of luminescent materials, in particular to a method for preparing a solid luminescent material by doping a rare earth metal salt solution in a transition metal oxide nano sheet sol. Background technique [0002] The novel light-emitting properties of nanosheets and related materials have attracted great interest in recent years. The so-called nanosheet refers to its thickness is generally about 1 nanometer, and the cross-sectional area is about from several hundred nanometers to several square micrometers. Since nanosheets have a relatively large specific surface area, which can provide enough space to effectively absorb the excitation energy of photoluminescence, it is possible to assemble various functional nanosheets and intercalation ions to prepare new luminescent materials. So far, most of the reported luminescent materials based on nanosheets can be divided into two categories: one is that the nanosheets...

AI Technical Summary

Problems solved by technology

Although compared with the luminous properties of the host itself, the luminous intensity of the object under the excitation light source is better, but these luminescent materials often have phenomena such as uncontrollable morphology and serious agglomeration.

Moreover, a higher temperature is required in the preparation process, and the insertion amount of rare earth metal ions is not easy to control. If the insertion amount is small, the luminescence performance will be relatively low; and when the insertion amount is large, it is easier to cause concentration quenching. The so-called concentration quenching effect

Images