摘要
利用溶胶凝胶法制备了Eu3+掺杂的Y2O3荧光粉。考察了Y2O3:Eu3+的制备条件,进行了物相表征,研究了Y2O3:Eu3+的荧光性能。结果表明,在612 nm波长监测下,Y1.98O3:Eu3+0.02的激发光谱为300~550 nm,最大激发峰值位于466 nm,归属于Eu3+的7F0→5D2的跃迁。在466 nm波长激发下,Y2O3:Eu3+的发射光谱为550~700 nm,最大发射峰值位于612 nm,归属于Eu3+的5D0→7F2的跃迁主峰。Eu3+的掺杂量为x=0.02,p H=1时Y2O3:Eu3+荧光粉可以得到最强的红光荧光粉。
Eu^3＋codoped Y2O3 phosphors were prepared by sol-gel method. The preparation conditions of Y2O3： Eu^3＋ phosphors were investigated. The phases of the phosphors were characterized. And the spectroscopic characterization of Y2O3： Eu^3＋ was studied. Upon excitation of the characteristic excitation of Eu^3＋ at 446 nm, Red emissions of Eu3＋ from 500-700 nm have been obtained. Under the 612 nm wavelength monitoring Y2O3：Eu^3＋,0.02 excitation spectrum of 300-550 nm, maximum excitation peak at 466 nm, belongs to the Eu3＋ 7F0→5D2transition. Under the 466 nm wavelength excitation, Y2O3：Eu^3＋ the emission spectrum of Eu3＋550-700 nm, the largest emission peak at 612 nm, belongs to the Eu^3＋ 7F0→5D2transition peaks. Eu3 ＋ doping amount of x = 0.02, p H=1 Y2O3：Eu3＋ phosphors can be the most powerful red phosphors.
出处
《广东化工》
CAS
2015年第14期45-46,共2页
Guangdong Chemical Industry
