Rare earth complex composite fluorescent material and preparation method thereof

Abstract

The invention provides a rare earth complex composite fluorescent material and a preparation method thereof. According to the preparation method, europium ions are used as a luminous body; triphenyl phosphine oxide (TPPO) and 2-thiophenyltrifluoroacetone (TTA) are taken as organic ligands; calcium carbonate is taken as a matrix; an europium complex composite fluorescent material is prepared underset conditions, and the obtained composite fluorescent material is characterized. The cost of the fluorescent material is reduced, and the prepared material is good in thermal stability and fluorescence property, and is expected to become a good luminophor in high-temperature-resistant devices.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to a rare earth complex composite fluorescent material and a preparation method thereof. Background technique [0002] Rare earth elements have been widely used in nonferrous metallurgy, petrochemical, military, glass ceramics, magnetic materials and various functional materials, light industry and textile industry, agricultural medicine and other fields. [0003] Rare earth elements refer to group IIIB in the periodic table of elements, 21st element scandium Sc, 39th element yttrium Y and 57-71 lanthanum La, cerium Ce, praseodymium Pr, neodymium Nd, promethium Pm, samarium Sm, europium Eu, gadolinium Gd , terbium Tb, dysprosium Dy, holmium Ho, erbium Er, thulium Tm, ytterbium Yb, lutetium Lu, a total of 17 elements. Containing rare earth elements as matrix components, activators, co-activators or dopants is a general term for rare earth fluorescent materials. [0004] Rare ea...

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Problems solved by technology

[0006] The rare earth europium complex is a red fluorescent material, which has the advantages of unique molecular structure, photoluminescence mechanism, strong fluorescence and good monochromaticity, and has been applied in many fields such as industry, agriculture, biology, etc., but its light, The thermal stability is slightly poor, and in recent years, because rare earths have gradually been used as strategic resources, more and more attention has been paid to them. Therefore, the price of rare earths has continued to rise, and it is difficult to recycle rare earth complexes after use, resulting in the decline of rare earth complexes in many aspects. Applications are limited

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