Self-activating light-emitting material capable of responding to multiple stimulations such as light stimulation, heat stimulation and force stimulation

Abstract

The present invention relates to a self-activating light-emitting material capable of responding to multiple stimulations such as light stimulation, heat stimulation and force stimulation, and a preparation method thereof, wherein the chemical expression formula of the material is CaxZnyOS, x is more than 0.9 and is less than 1, and y is more than 0.9 and is less than 1. The self-activating light-emitting material of the present invention can emit bright pink light under the excitation of 250-300 nm ultraviolet light, can emit bright green light under the excitation of 325-350 nm ultraviolet light, has thermoluminescence performance under thermal stimulation, has stress luminescence performance under the actions of friction, collision, ultrasound and compression, can emit green visible light, and is the self-activating functional light-emitting material capable of responding to multiple stimulations such as light stimulation, heat stimulation and force stimulation.

Description

technical field [0001] The invention belongs to the technical field of material physics, and relates to a self-activated luminescent material responsive to light, heat and force and a preparation method thereof. Background technique [0002] In the era of continuous development and progress of science and technology, more and more device products tend to be intelligent and multi-functional. Multifunctional materials have always been a focus of attention, exploration and research by professionals. Emitter materials occupy an important position in multifunctional materials. [0003] Luminescent materials are an important class of functional materials, which are widely used in high-tech fields such as information, aerospace, detection and biology. In order to adapt to the rapid development of today's technology industry and meet the multifunctional requirements of luminescent materials, domestic and foreign scholars are actively exploring and expanding their new functions whi...

AI Technical Summary

Problems solved by technology

(Ba, Ca)TiO 3 : Pr material has obvious red light under the action of ultraviolet light excitation and compression, but the thermoluminescent luminescence efficiency is too low, and the mechanical stimulus that can respond is single; Ca 2 Nb 2 o 7 : Although the Pr material can realize multiple color transformations under different ultraviolet light excitations, the thermoluminescence and stress luminescence under multiple mechanical stimuli are weak; SrAl 2 o 4 : Eu, Dy materials show excellent performance under light and heat stimulation, but only respond to weak stress; BaZrO 3 : Eu, Ti materials show orange-red light with high brightness and good monochromaticity under light stimulation, but no luminescence response under thermal and mechanical stimulation

It can be seen that most of the luminescent materials can only show good performance under certain stimuli, and it is difficult to achieve multi-functionalization that integrates force, heat, and light stimuli into one, which limits the development and application of materials to a certain extent.

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