摘要
采用燃烧法合成了SrIn2O4:Sm3+红色荧光粉并研究了其发光性质。发射光谱由位于红橙区的3个主要荧光发射峰组成,峰值分别为568,606,660nm,对应Sm3+的4G5/2→6H5/2、4G5/2→6H7/2和4G5/2→6H9/2特征跃迁发射,其中606nm的发射最强。激发光谱包括峰值位于323,413nm的宽带,说明该荧光粉可以被近紫外-紫色发光二极管管芯激发发射红光。研究了Sm3+的掺杂浓度对样品发光强度的影响。实验结果表明SrIn2O4:Sm3+是一种可用于制作白光LED的红色荧光粉。
The SrIn2O4∶Sm3＋ red emission phosphor were synthesized by combustion method and their luminescence properties were studied.The SrIn2O4∶Sm3＋ shows three major emission peaks at 568,606,660 nm,which correspond to the 4G5/2→6H5/2,4G5/2→6H7/2 and 4G5/2→6H9/2 typical transition of Sm3＋,respectively.The strongest emission peak is at 606 nm.Their excitation spectra containing two bands whose peaks located at 413,476 nm indicating that this phosphor can be excited effectively in both near-ultraviolet light-emitting diode（UVLED） and blue light-emitting diode for white LED.The influence of the concentration of Sm3＋ was investigated also.The SrIn2O4∶Sm3＋ phosphor is a very appropriate red-emitting phosphor for white light-emitting diode device.
出处
《发光学报》
EI
CAS
CSCD
北大核心
2011年第1期38-41,共4页
Chinese Journal of Luminescence
基金
河北科学技术发展基金(51215103b)资助项目
关键词
LED
荧光粉
Sm3+
SrIn2O4
The SrIn2O4∶Sm3＋ red emission phosphor were synthesized by combustion method and their luminescence properties were studied.The SrIn2O4∶Sm3＋ shows three major emission peaks at 568,606,660 nm,which correspond to the 4G5/2→6H5/2,4G5/2→6H7/2 and 4G5/2→6H9/2 typical transition of Sm3＋,respectively.The strongest emission peak is at 606 nm.Their excitation spectra containing two bands whose peaks located at 413,476 nm indicating that this phosphor can be excited effectively in both near-ultraviolet light-emitting diode（UVLED） and blue light-emitting diode for white LED.The influence of the concentration of Sm3＋ was investigated also.The SrIn2O4∶Sm3＋ phosphor is a very appropriate red-emitting phosphor for white light-emitting diode device.
