Emission tunable of Mg_(0.695)Si_(0.695)Al_(1.39)O_(3.65)N_(0.35):Eu^(2+),Mn^(2+) oxynitride phosphors via energy transfer for WLEDs

作     者：Yijun Yu Yi Chen Liang Chen Yuyu Shen Xiao Liu Degang Deng Shiqing Xu Yijun Yu;Yi Chen;Liang Chen;Yuyu Shen;Xiao Liu;Degang Deng;Shiqing Xu

作者机构：College of Optical and Electronic TechnologyChina Jiliang UniversityHangzhou 310018China Institute of Optoelectronic Materials and DevicesChina Jiliang UniversityHangzhou 310018China 

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

年 卷 期：2021年第39卷第6期

页      面：643-650,I0002页

核心收录：

学科分类：081702[工学-化学工艺] 0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 0703[理学-化学] 0803[工学-光学工程] 

基　　金：Project supported by the Zhejiang Natural Science Foundation of China(LZ20F050001) Zhejiang Provincial Natural Science Foundation of China(LY19E020005) National Key R&D Program of China(2017YFB0403705) 

主　　题：Mg_(0.695)Si_(0.695)Al_(1.39)O_(3.65)N_(0.35):Eu^(2+) Mn^(2+) Emission tunable Quantum yield Photoluminescence Energy transfer Rare earths 

摘      要：A series of Eu^(2+)doped and Eu^(2+)/Mn^(2+) co-doped Mg_(0.695)Si_(0.695)Al_(1.39)O_(3.65)N_(0.35)(MSAON) phosphors were synthesized by solid-state reaction at a lower temperature of 1500℃.The crystal morphology and structure of MSAON host were characterized by SEM,TEM and *** quantum yield(QY) for Eu^(2+)doped MSAON phosphors was measured as high as 62%,indicating the excellent luminous *** the Eu^(2+)/Mn^(2+)co-doped MSAON phosphor,the photoluminescence spectrum and delay curves reveal the efficient energy transfer(ET) process from Eu^(2+)to Mn^(2+)***,the corresponding energy transfer efficiency,critical distance and mechanism are discussed in ***-dependent emission spectrum shows the thermal and color *** emission color of MSAON:Eu^(2+),Mn^(2+)phosphors could be tuned from blue through white to red via varying the concentration of Mn^(2+) ***-light-emitting diodes(WLEDs) were successfully fabricated by encapsulating the phosphors in nUV LED(365 nm) devices obtaining white light with color rendering index(CRI) as high as *** results reveal that the MSAON:Eu^(2+),Mn^(2+)phosphors could have potential application in the field of n-UV WLEDs.