发光学报2012，Vol.33Issue(9)：929-933,5.DOI:10.3788/fgxb20123309.0929
白光LED用正交相Gd2(MoO4)3∶Dy3+荧光粉的制备与发光性能
Preparation and Optical Properties of The Orthorhombic Gd2 (MoO4 )3∶Dy3+ Phosphor for White LEDs
摘要
Abstract
The orthorhombic Gd2 ( Mo04 ) 3 : Dy3 + were successfully synthesized by hydrothermal process with a subsequent annealing treatment. The crystallization and microstructures of the samples were characterized by powder X-ray diffraction ( XRD) and scanning electron micrograph ( SEM ). The luminescent properties of the prepared samples were investigated by the excitation and emission spectra. Under 389 nm excitation, the emissions centered at 487 nm and 576 nm were attributed to the transitions of 4F9/2-6H15/2 and 4F9/2-6H13/2, respectively. The emission spectra indicated that the optimal doping content of Dy3+ was 16%. Especially, the orthorhombic Gd1.81(MoO4)3: Dy0.16 3+ exhibits CIE coordinates of (0.326, 0.336) with a color temperature of 6 389 K, which is closest to the nature white light. Thus it can be considered to be a potential candidate for white-LEDs.关键词
Gd2(MoO4)3∶Dy3+/水热合成/白色荧光粉Key words
Gd2(MoO4)3: Dy3+ / hydrothermal synthesis/ white emitting phosphors分类
数理科学引用本文复制引用
袁桃利,夏婉婉,于宏柱,张成山,张方程,段佩华,王晓峰,付作岭..白光LED用正交相Gd2(MoO4)3∶Dy3+荧光粉的制备与发光性能[J].发光学报,2012,33(9):929-933,5.基金项目
国家自然科学基金(11004081) （11004081）
吉林大学研究生创新基金(450091202144) （450091202144）
教育部留学回国人员科研启动基金(1128541411)资助项目 （1128541411）
