location: Current position: Home >> Scientific Research >> Paper Publications

NaY0.98-xF4:Ybx/Er0.02纳米晶体的制备及表征

Hits:

Indexed by:期刊论文

Date of Publication:2012-12-15

Journal:中国科技论文

Volume:7

Issue:12

Page Number:894-897

ISSN No.:2095-2783

Key Words:上转换;NaYF4:Yb/Er;六方相

Abstract:以高温油相法合成了NaY0.98-xF4:Ybx/Er0.02(x=0.2、0.4、0.6、0.8、0.98)纳米晶体,并通过X射线粉末衍射(XRD)、扫描电子显微镜(SEM)和荧光分光光度计对制备的产品进行表征.XRD结构显示合成的NaY0.98-xF4:Ybx/Er0.02产品均为六方相;SEM结果表明晶体呈六边形盘状;上转换荧光光谱显示在相同激发功率条件下,随着Yb3+掺杂浓度的提高,绿光和红光的发光强度均降低,红光/绿光强度比升高.

Pre One:Approaches to the multicolor tuning of lanthanide-ion doped upconversion nanoparticles

Next One:Synthesis, Properties and Applications of Polymer-grafted SrAl2O4: Eu2+, Dy3+