欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用溶液燃烧法成功制备了Eu2＋激活的BaMgAl10O17：Eu^2＋（BAM）蓝色荧光粉,着重研究了助熔剂H3BO3对BAM发光性能影响的机理。结果表明：助熔剂有利于产物的晶化,所获得的BAM颗粒形貌更加规整,呈球状且尺寸分布更加均匀。H3BO3的最佳添加质量为1.0%,可使BAM的发光强度提高30%以上。助熔剂提高BAM发光性能的机理为：液相的存在改变了粉末之间的接触状态,降低了分子扩散的传质阻力,有利于激活剂稀土离子充分进入BAM晶格而形成更多的发光中心,从而提高产物的发光性能。
英文摘要：
The Eu^2＋ activated blue emitting BaMgAl1017：Eu^2＋ （BAM） phosphor for plasma display panel application was successfully prepared by the solution combustion method. The mechanism of H3BO3 as flux for the luminescence properties of the BAM phosphor was investigated. The results show that the use of H3BO3 as flux can help to crystallize the phosphor, and enhances the intensities of the excitation and emission spectra of the BAM. The optimum content of H3BO3 is about 1.0% in mass which increases the relative emission intensity of the BAM more than 30%. The flux mechanism for the improvement of the photoluminescence cha- racteristics of the BAM is that the H3BO3 melts at a low temperature to form liquid phase, which accelerates the velocity of the chemical reaction, prompting the Eu^2＋ to enter the BAM lattice through grain boundary diffusion and improving the morphology of particles, endowing them with round edges, smooth surfaces and nearly spherical shapes.
同期刊论文项目
同项目期刊论文
Influence of sintering temperature on microstructures of Nb/Nb5Si3 in-situ composites synthesized by
Fabrication and microstructure evolution of niobium-niobium silicide composites by spark plasma sint
In-situ synthesis and characteristics of TiC-Fe cermet graded composite coating on a steel substrate
Microstructures, densification and mechanical properties of TiC–Al2O3–Al composite by field-activate
Influence of an electric field on combustion synthesis process and microstructures of TiC-Al2O3-Al c
The effect of citric acid to metal nitrates molar ratio on sol-gel combustion synthesis of nanocryst
Microstructures and densification of MoSi2-SiC composite by field-activated and pressure-assisted co
期刊信息
位置：