Preparation And Luminescence Properties Of Alkali Metal Chloride Salt RCl （R=Na, K） Activated With Rare Earth Ions Ce³⁺、Tb³⁺ And Eu³⁺

Xinjiang Uygur Autonomous Region is rich in mineral resources which aredistributed extensively and many minerals have the unique physical properties. In thispaper we based on a Sodium Chloride, prepared new phosphors by doping Ce, Tb andEu into Sodium Chloride. To reveal the Photoluminescence properties of the newphosphors, it is investigated by emission spectra and excitation spectra ofphotoluminescence, X-ray powder diffraction, vacuum ultraviolet （VUV） excitation,etc. Which are offers theoretical and technical instructions for exploiting anddeveloping to new phosphors.This paper is consisted of four chapters concerning to photoluminescence spectra.In the chapter one, the history, background and the progress ofphotoluminescence spectra was described. In the chapter two, seers NaCl: Ce³⁺ofphosphors was prepared by hydrothermal approach. The crystal structure wearchecked by x-ray diffraction, and the result showed all the samples are of single phase.The VUV excitation and emission spectra were measured at room temperature. Twoemission peaks at about309nm and324nm were observed and they were ascribed to5d→4f（2F5/2,2F7/2） transitions of. The excitation spectra contain two broad bands at148nm and247nm. The peak at148nm can be attributed to the host related absorptionand anather peak is due to the4f→5d transitions of Ce³⁺. The material148nmexcitation spectrum to meet the PDP, medical physics, no pump fluorescent materialdemand for light-emitting phosphors. Chapter three, hydrothermal synthesis of NaCl:Tb³⁺ fluorescent material.we is consisted many bands assigned to transitions of to the4fn→4fn-15d. We observed emission spectra assigned to the electronic transitionsfrom5D4→7FJ（J=5，4，3，2，1and0）of Tb³⁺in NaCl. In the final chapter, Eu³⁺dopedluminous intensity burning time and burning temperature emission spectra analysis.Light-emitting materials NaCl: Eu³⁺emission spectra and KCl: Eu³⁺emission spectra.Experimental results show that the material to meet the needs of the LED market.Finally, of the entire article summarizes the research prospects.