照明工程学报2017，Vol.28Issue(1)：10-14,20,6.DOI:10.3969∕j.issn.1004-440X.2017.01.003
(Sr,Ca)AlSiN3:Eu2+荧光粉的常压合成及其LED封装性能研究
Facile Synthesis of ( Sr, Ca) AlSiN3: Eu2+ Phosphor and Its LED Packging Performance
摘要
Abstract
A series of ( Sr, Ca) AlSiN3: Eu2+ phosphors have been successfully prepared by solid state reaction under atmospheric pressure and the effect of synthetic methods ( atmospheric pressure synthesis and high pressure synthesis) on crystal structure, photoluminescence property and morphology of phosphor was also conducted. The ( Sr, Ca ) AlSiN3: Eu2+ phosphors prepared by atmospheric-pressure synthesis method exhibit an ideal luminescent intensity, and the emission peak located on 615 nm~640 nm. All the phosphors exhibit orthorhombic crystal structure similar with CaAlSiN3 structure. No impurity can be observed in XRD patterns of ( Sr, Ca) AlSiN3: Eu2+ phosphors. The obtained Sr0. 8 Ca0. 192 AlSiN3: 0. 008 Eu2+ phosphor was further used as efficient red component to fabricate white light emitting diodes ( LEDs) . Under the optimized condition of LED packaging, the white LEDs own the excellent optical properties with luminous efficiency of 86. 8 lm/W and an ideal color rendering index (Ra =85). Furthermore, the color correlated temperature (4000K~6000K) of white LEDs can be simply adjusted through changing the red phosphor ratio.关键词
氮化物荧光粉/常压合成/荧光性能/白光LEDKey words
nitride phosphor/atmospheric-pressure synthesis/photoluminescence property/white LEDs分类
化学化工引用本文复制引用
张彦杰,胡泽青,寇晶,于晶杰,邹念育..(Sr,Ca)AlSiN3:Eu2+荧光粉的常压合成及其LED封装性能研究[J].照明工程学报,2017,28(1):10-14,20,6.基金项目
辽宁省教育厅一般项目和大连工业大学博士启动基金 (61020726) 资助 （61020726）
