氧化物纳米材料Y_2O_3:(Yb^(3+),Er^(3+))上转换发光性质的研究  

Upconversion of Oxide Y_2O_3 Doped with (Yb^(3+),Er^(3+)) Ions with 978 nm Excitation

作　　者：刘晃清[1] 王玲玲[1] 李宏健[1] 

机构地区：[1]湖南大学应用物理系,湖南长沙410082

出　　处：《光谱学与光谱分析》2006年第8期1396-1399,共4页Spectroscopy and Spectral Analysis

基　　金：湖南省自然科学基金(03JJY3068)资助项目

摘　　要：以Y2O3,Yb2O3,Er2O3为原料,利用燃烧法分别制备了Y2O3:Er3+和Y2O3:(Yb3+,Er3+)两种纳米材料和相应的体材料Y2O3:(Yb3+,Er3+)。用发射波长为978 nm的半导体激光器和日立F-4500荧光分析仪测量了它们的上转换发光,得到纳米材料Y2O3:Er3+的上转换发光主要为绿色上转换发射而纳米材料Y2O3:(Yb3+,Er3+)主要为红色上转换发射,而后者与激活离子掺杂浓度相同的体材料Y2O3:(Yb3+,Er3+)的上转换发射相比较,体材料以绿色上转换发射为主、红色上转换发射很弱。Two nanomaterials Y2O3： Er^3＋ and Y2O3：（Yb^3＋, Er^3＋） were prepared by combustion on the basis of reagents Y2O3, Yb2O3 and Er2O3. The corresponding host Y2O3 ： （Yb^3＋,Er^3＋） was obtained by increasing calcination temperature. Upconversion emission was obtained under 978 nm LD excitation. Comparing nanopowder oxide Y2 O3：Er^3＋ with nanometer materials Y2O3：（Yb^3＋,Er^3＋ ） with respect to upconversion spectra, the upconversion emission of the former mainly was green upconversion and that of the latter mainly red light. However, the upconversion emission of nanopowder Y2O3： （Yb^3＋ , Er^3＋ ） was diferent from that of its corresponding host, with main red upconversion emission for the former but main green upconversion emission on the latter.

关 键 词：氧化物 纳米材料 Y2O3:(Yb^3+ Er^3+) 上转换 发光 

分 类 号：O482.3[理学—固体物理]