采用乙二胺四乙酸(EDTA)-柠檬酸联合配位法在较低温度下制备Eu3+掺杂的双钙钛矿Sr2CaMoO6橙红色荧光粉,借助X线衍射,扫描电镜,紫外可见漫反射光谱和荧光光谱研究不同煅烧温度下粉体的结构和发光性能,并进行结构精修和态密度的第一性原理计算.结果表明:在900℃下即得到B位高度有序的离子掺杂的双钙钛矿粉体,其结构...
Eu 3+掺杂双钙钛矿Sr2CaMoO6橙红色荧光粉的结构特征及其发光性能
Luminescence properties of double-perovskite Sr2Ca1-2xEuxNaxMoO6 red- emitting phosphors prepared by the citric acid-assisted sol-gel method. Journal of Materials Science, 2010, 45: 1553.Xia Z G, Sun J F, Du H Y, Chen D M, Sun J Y. Lumines- cence properties of double-perovskite Sr2...
合成了 (Sr1-xBax)2CaMoO6:Yb3+ 荧光粉用于研究基质阳离子同族取代后,对晶体结构,能级及 Yb3+ 近红外发光性\n质的影响.随着 Ba 对 Sr 的取代,晶相由 Sr2CaMoO6 逐渐转变为 Ba2CaMoO6,基质晶胞体积逐渐增大,晶体结构对称性逐渐提\n高;晶体结构的优化,使 Mo-O 电荷迁移带间的能量猝灭增强,且幅度超过了...
张乐;鲁加加;刘金秋;李月;王丽熙;张其土.Eu^3+掺杂双钙钛矿Sr2CaMoO6橙红色荧光粉的结构特征及其发光性能.无机化学学报.2012.2036-2042Eu3+掺杂双钙钛矿Sr2CaMoO6橙红色荧光粉的结构特征及其发光性能[J]. 张乐,鲁加加,刘金秋,李月,王丽熙,张其土.无机化学学报. 2012(10)张乐,鲁加加,刘金秋,李月,王丽熙,张其土,...
固态烧结法合成新化合物Sr2CaMoO6固态烧结法Sr2CaMoO6本文用固态烧结法合成了新化合物Sr2CaMoO6,并通过x射线衍射的测定,确定Sr2CaMoO6属正交晶系,其点阵常数为:a=8.158;b=5.733;c=5.835.李震武,杨建宏,张清,柴景春,付正民山西大学山西大学学报(自然科学版)...
Elastic properties and plane acoustic velocity of cubic Sr2CaMoO6 and Sr2CaWO6 from first-principles calculations61.50.Ah61.50.Ks87.19.rd66.20.Cy61.43.BnThe elastic properties and plane acoustic velocity of double perovskite Sr 2 CaMoO 6 and Sr 2 CaWO 6 are investigated with the plane wave ...
Lumines- cence properties of double-perovskite Sr2Ca1-2xEuxNaxMoO6 red-emitting phosphors prepared by the citric acid-assisted sol-gel method. J. Mater. Sci., 2010, 45(6): 1553.Zhiguo Xia,Jianfeng Sun,Haiyan Du,Daimei Chen,Jiayue Sun.Luminescence properties of double-perovskite Sr2Ca1?2x ...
The calculated static dielectric constant and static refractive index of Sr2CaMoO6are respectively 3.1 and 1.77, larger than those of Sr2CaWO6, namely 2.6 and 1.61. Within the energy range of 0∼10 eV, the energy loss peaks are confined to very narrow regions in the energy loss spectra ...
The double perovskites Sr2-xCaxMgMoO6–δ with x = 0, 0.25, and 0.5 were obtained by combustion of organometallic precursors and were shown to have a tetragonal structure with the crystalline lattice...doi:10.1007/s10008-017-3868-9D. A. Osinkin...