Effect of Eu^(3+) doping on luminescence properties of a KAlSiO_(4):Sm^(3+) phosphor

作     者：Reziwanguli Yantake Aierken Sidike Taximaiti Yusufu 

作者机构：College of Physics and Electronic EngineeringXinjiang Normal UniversityUrumqi 830054China Key Laboratory of Mineral Luminescent Material and Microstructure of XinjiangUrumqi 830054China Key Laboratory of New Light Source and Micro-nano OpticalUrumqi 830054China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2022年第40卷第3期

页      面：390-397,I0002页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Project supported by the Scientific Research Projects of Universities in Xinjiang Autonomous Region(XJEDU2017I009) the Scientific Research and Innovation Project of Postgraduates in Xinjiang Autonomous Region(XJ2020G233) 

主　　题：KAlSiO_(4):Sm^(3+) Eu^(3+)red silicate phosphor Energy transfer Co-excitation Color purity Rare earths 

摘      要：This study presents the photoluminescence characteristic analysis of a series of red phosphors of KAlSiO_(4):1.5 mol%Sm^(3+),x mol%Eu^(3+)(x=2,3,4,5,6,7)prepared via high-temperature solid-phase *** results show that the X-ray diffraction(XRD)refinement results are *** unit cell parameters and volume gradually decrease as the Eu^(3+) concentration increases,resulting in a grain size reduction of 10.22%.When x=6,the emission peaks of Sm^(3+) at 564,601,and 651 nm disappear completely,and the corresponding full width at half maximum becomes *** 610 nm,the emission peak intensity of Eu^(3+) is increased by a factor of *** resonant non-radiative energy transfer effect is greater than the co-excitation effect.A maximum energy transfer efficiency of 97.8%is *** integral area at 610 nm is as high as 85%.The color purity of the phosphor is as high as 92.97%,and the internal quantum yield gradually changes from 32%to 51%.Ultimately,these results confirm that the silicate phosphor is suitable for the red component in the three primary color phosphors of white light-emitting diodes.