Er3+/Yb3+ co-activated silica-alumina monolithic xerogels

被引：20

作者：

Chiasera, A

Montagna, M

Rolli, R

Ronchin, S

Pelli, S

Righini, GC

Gonçalves, RR

Messaddeq, Y

Ribeiro, SJL

Armellini, C

Ferrari, M

Zampedri, L

机构：

[1] Univ Trent, Dipartimento Fis, I-38050 Trent, Italy

[2] Univ Trent, INFM, I-38050 Trent, Italy

[3] CNR, IROE, Optoelect & Photon Dept, I-50127 Florence, Italy

[4] Univ Trent, Dipartimento Ingn Mat, I-38100 Trent, Italy

[5] Univ Trent, INFM, I-38100 Trent, Italy

[6] UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil

[7] Ctr Fis Stati Aggregagti, CNR, CeFSA, I-38050 Trent, Italy

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2003年 / 26卷 / 1-3期

关键词：

silica-alumina glasses; sol-gel; erbium-ytterbium; spectroscopic properties;

D O I：

10.1023/A:1020744926382

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Monolithic silica xerogels doped with different concentrations of Er3+, Yb3+ and Al3+ were prepared by sol-gel route. Densification was achieved by thermal treatment in air at 950degreesC for 120 h with a heating rate of 0.1degreesC/min. We studied the luminescence properties of the I-4(13/2)-->I-4(15/2) emission band of Er3+ as a function of the Al/Er/Yb concentration and we paid particular attention to the alumina effects. Raman spectroscopy and Vis-NIR absorption were used to monitor the degree of densification of the glasses and the residual OH content.

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收藏

页码：943 / 946

页数：4

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