摘要
采用高温固相法合成Eu^(3+)掺杂的KGd (WO_4)_2系列红色发光材料. x射线衍射表明,1000℃高温焙烧下的KGd (WO_4)_2荧光粉为纯相晶体结构.样品可被近紫外光394 nm和蓝光465 nm有效吸收,发射出Eu^(3+)的特征光谱.研究了Eu^(3+)的掺杂量、保温时间及不同助熔剂对样品发光性能的影响,结果表明:KGd(WO_4)_2:Eu^(3+)是一种很有应用前景的白光LED用荧光材料.
A series of red-emitting phosphors KGd （WO4）2： Eu^3＋ were synthesized by high-temperature solid-state reaction. The analysis by X-ray diffraetion indicates that the phosphor synthesized at 1000℃ has a single phase of KGd（WO4）2. It can be efleetively excited by uhraviolet（394 nm） and biue（465 nm） light, emitting a satisfactory red performance. The influence of Eu^3＋ concentration,the soaking time and diflerent fluxes on the luminescence properties were studied. The results show that it is a promising material for near-UV/blue InGaN-based white LED.
作者
林莹
高绍康
LIN Ying;GAO Shaokang(Department of Safety Technology and Environmental Engineering,Fujian Chuanzheng Communieations College,Fuzhou,Fujian 350007,China;College of Chemistry and Chemical Engineering,Fuzhou University,Fuzhou,Fujian 350108,China)
出处
《闽南师范大学学报（自然科学版）》
2018年第3期76-81,共6页
Journal of Minnan Normal University：Natural Science
基金
福建省自然科学基金项目(2011J01037)
福建省中青年教师教育科研项目(JA13378)
