人工晶体学报2024，Vol.53Issue(7)：1170-1176,7.
Eu3+掺杂Y2MgTiO6红色荧光粉的制备及发光性质研究
Synthesis and Luminescence Properties of Y2MgTiO6∶Eu3+Red-Emitting Phosphor
摘要
Abstract
A series of novel red-emitting phosphors of Y2-2xMgTiO6∶2xEu3+(YMT∶2xEu3+,0≤x≤0.11)were synthesized by sol-gel method.Phase purity was examined by X-ray diffractometer(XRD)and the results show that the obtained YMT∶Eu3+phosphors crystallize in the monoclinic space group P21/n and no other peaks are observed.The SEM images show that the obtained particles exhibit the non-uniform shapes with an average size of 2 µm.The photoluminescence spectrum under the excitation of 264 nm reveals four narrow bands at 591,619,657 and 698 nm,which correspond to the 5D0→7F1,5D0→7F2,5D0→7F3 and 5D0→7F4 transitions of Eu3+,respectively.The energy transfer mechanism among Eu3+ions is identified as dipole-dipole(d-d)interactions.The phosphor of YMT∶O.14Eu3+exhibits a chromaticity coordinates of(0.645,0.332),which is close to the standard red color coordinates(0.67,0.33).The temperature-dependent PL spectra were analyzed,and the calculated activation energy indicates the acceptable thermal stability of the phosphor.Hence,the red-emitting phosphors of YMT:Eu3+can be potentially applied to LED.关键词
Eu3+/溶胶-凝胶法/Y2MgTiO6/红色荧光粉/热稳定性/LEDKey words
Eu3+/sol-gel method/Y2MgTi06/red-emitting phosphor/thermal stability/LED分类
化学化工引用本文复制引用
蒋小康,高峰,周恒为..Eu3+掺杂Y2MgTiO6红色荧光粉的制备及发光性质研究[J].人工晶体学报,2024,53(7):1170-1176,7.基金项目
2024年度新疆凝聚态相变与微结构实验室开放课题(XJDX0912Z2401) （XJDX0912Z2401）
