CAJ | 학술논문

采用高温固相法合成了不同浓度Ce3+掺杂的AlON荧光粉.通过X射线和扫描电镜分析了荧光粉的物相和显微结构,且利用荧光光谱仪测试了AlON:Ce3+荧光粉的发光光谱.结果表明,荧光粉在305 nm紫外激发下发射390 nm为中心的蓝光.温度依赖荧光谱测试发现, AlON:Ce3+荧光粉在150?C下发射强度能保持室温发射强度的86%.因此,该荧光粉是大功率白光发光二极管用最佳荧光粉的候选材料之一.
채용고온고상법합성료불동농도Ce3+참잡적AlON형광분.통과X사선화소묘전경분석료형광분적물상화현미결구,차이용형광광보의측시료AlON:Ce3+형광분적발광광보.결과표명,형광분재305 nm자외격발하발사390 nm위중심적람광.온도의뢰형광보측시발현, AlON:Ce3+형광분재150?C하발사강도능보지실온발사강도적86%.인차,해형광분시대공솔백광발광이겁관용최가형광분적후선재료지일.
@@@@In this paper, AlON phosphors doped with Ce3+are prepared by solid-state reaction method. Phases, microstructures and optical properties of the synthesized phosphors are characterized by X-ray diffraction and scanning electron microscopy and photolumines-cence. The results indicate that AlON3+: Ce phosphors emit the blue light centered at 390 nm under the excitation of 305 nm. The emission intensity of AlON:Ce3+at 150 ?C is about 86%of that measured at room temperature. It demonstrates that the AlON:Ce3+has a great potential in applications of high-density white light-emitting diodes.