长春理工大学学报（自然科学版）
長春理工大學學報（自然科學版）
장춘리공대학학보（자연과학판）
JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2013年
5期
91-93
,共3页
刘祥华%孙海鹰%刘亿飞
劉祥華%孫海鷹%劉億飛
류상화%손해응%류억비
白光LED%Sr2SiO4:Eu3+,Dy3+超细荧光粉%低温燃烧法%电荷补给剂
白光LED%Sr2SiO4:Eu3+,Dy3+超細熒光粉%低溫燃燒法%電荷補給劑
백광LED%Sr2SiO4:Eu3+,Dy3+초세형광분%저온연소법%전하보급제
white LED%Sr2SiO4:Eu3+,Dy3+ ultrafine phosphors%Low temperature combustion method%Charge supply agent
以硅酸盐为基质，通过低温燃烧法合成了Sr2SiO4：Dy3+高亮度白光LED用荧光粉。利用XRD和荧光光谱研究合成的荧光粉的结构特性和发光性能。结果表明：合成的荧光粉为斜方晶系，物相较纯。随着Dy3+掺杂浓度的增加，荧光粉的结构没有发生破坏，光谱的形状也没有发生改变。当Dy3+的掺杂浓度为2%，电荷补给剂LiOH的掺杂浓度为5%时，合成的荧光粉发光性能最佳。荧光粉可被352nm的紫外光有效激发，同时发出蓝光和橙光，混合后获得白光。
以硅痠鹽為基質，通過低溫燃燒法閤成瞭Sr2SiO4：Dy3+高亮度白光LED用熒光粉。利用XRD和熒光光譜研究閤成的熒光粉的結構特性和髮光性能。結果錶明：閤成的熒光粉為斜方晶繫，物相較純。隨著Dy3+摻雜濃度的增加，熒光粉的結構沒有髮生破壞，光譜的形狀也沒有髮生改變。噹Dy3+的摻雜濃度為2%，電荷補給劑LiOH的摻雜濃度為5%時，閤成的熒光粉髮光性能最佳。熒光粉可被352nm的紫外光有效激髮，同時髮齣藍光和橙光，混閤後穫得白光。
이규산염위기질，통과저온연소법합성료Sr2SiO4：Dy3+고량도백광LED용형광분。이용XRD화형광광보연구합성적형광분적결구특성화발광성능。결과표명：합성적형광분위사방정계，물상교순。수착Dy3+참잡농도적증가，형광분적결구몰유발생파배，광보적형상야몰유발생개변。당Dy3+적참잡농도위2%，전하보급제LiOH적참잡농도위5%시，합성적형광분발광성능최가。형광분가피352nm적자외광유효격발，동시발출람광화등광，혼합후획득백광。
In this paper, Sr2SiO4:Dy3+ high-brightness white LED phosphor was synthesized through low-temperature combustion method as silicate matrix.The structural characteristics and luminescence properties were discussed by XRD and fluorescence spectra.The results indicated that synthesized phosphor was orthorhombic without impurities.With in-creasing doped-concentration of Dy3+,the structure of the phosphor isn’t damaged and the shape of the spectrum isn’ t changed.When Dy3+ doped-concentration was 2% and the charge supply agent LiOH doped-concentration was 5%, synthesized phosphor had the best luminescence properties.Phosphor can be effectively excited by 352nm UV light, also a blue and orange light are issued,white light is obtained after mixing.
