Y2O3∶Er3+Yb3+纳米晶上转换分别以柠檬酸和甘氨酸为燃烧剂,采用低温凝胶燃烧法合成了Er3+、Yb3+共掺Y2O3纳米晶粉体。通过TG-DSC、XRD、SEM等分析手段对两种燃烧剂所对应的反应过程及纳米晶粉体的物理性能进行了分析,结果表明甘氨酸法具有更高的反应效率、更好的粉体分散性及粒径均匀性。在980 nm激光二极管(LD)...
Compared with the original Y2O3: Er3+ and Y2O3: Er3+, Yb3+ sub-microcrystals, the UC luminescence of sub-microcrystals with similar size was enhanced after Zr4+ ions co-doping. The UC luminescent properties have been discussed in detail via luminescence spectra, decay curve analysis and a ...
采用微波法和溶胶.凝胶法制备了(Y2O3:Er^3+粒子.微波法制备过程中烧结温度降低 到600℃.980nm激光激发下得到550和660nm两个上转换发射带.微波法制备的上转换材料得到了强的红光发射和弱的绿光发射,溶胶.凝胶法制备 的材料得到了强的绿色发射和弱的红光发射.结果表明,微波促进了S6对称性的形成,S6对称性促进了红光...
The study of anti-Stokes photoluminescence properties in the Y2O3: Er3+ nanocrystalsYZr2OZr3:Er3+纳米晶anti-Stokes发光性质的研究氧化钇纳米晶双光子吸收均相沉积法铒离子掺杂离子浓度The homogeneous precipitation method was used for preparing nanocrystalline erbium doped Y 2O 3 with various molar ...
现货:Tm^3+/Yb^3+共掺氧卤碲酸盐玻璃;低温凝胶燃烧法合成Y2O3:Er3+,Yb3+纳米晶 西安齐岳生物科技有限公司是一家*从事PEG衍生物、科研试剂、多肽、光电材料、碳纳米管、原料*、纳米材料、脂质体、合成磷脂的研发、定制合成、生产和销售的*高科技生物科技有限公司;供应 ...
采用均相沉积法制备了不同Er3+离子浓度掺杂的Y2O3纳米晶,应用XRD,SEM和PL光谱对该体系材料进行了表征.在Y2O3:Er3+纳米材料体系中,观察和研究了Stokes及anti-StokesPL谱强度与Er3+离子摩尔浓度变化的关系,当Er3+离子浓度为2.0mol%时,anti-Stokes PL强度最强.粉末XRD和SEM照片分别表明:制备的Y2O3:Er3+纳米材料具有...
静电纺丝技术制备Y2O3：Yb 3+,Er 3+上转换纳米纤维及其表征
VETRONE F, BOYER J C, CAPOBIANCO J A, et al. Concentration-dependent near-infrared to visible upconversion in nanocrystalline and bulk Y2O3:Er3+[J]. Chemistry of Materials, 2003,15(14):2737-2743.F. Vetrone, J.C. Boyer, J.A. Capobianco, A. Speghini, M. Bettinelli, Chem. Mater....
The Er3+, Eu3+, and Yb3+codoped Y2O3phosphors have been synthesized by combustion synthesis process. For the structural information, the XRD analysis of the developed phosphor has been done. The frequency upconversion (UC) emissions in the codoped Y2O3phosphor on excitation with 980nm diode las...
表明:Er3+完全固 溶于 Y2O3 的立方晶格中,Er3+:Y2O3 粉体大小均匀,近似球形,尺寸约 40～60 nm 左右.Er3+:Y2O3 透明陶瓷相对密度为 99.8%,在长波长范围内其透光率超过 60%, 在波长为 980 nm 的激光下有两个上转换发光带,其中绿色发光中心波长位于 562 nm,红色发光中心波长位于 660 nm,分别对应 4S3/...