Synthesis and characterization of Cr4+-doped CaO-GeO2-Li2O-B2O3(Al2O3) transparent glass-ceramics

被引：19

作者：

Bykov, A. B. ^{[1
]}

Sharonov, M. Yu.

Petricevic, V.

Popov, I.

Isaacs, L. L.

Steiner, J.

Alfano, R. R.

机构：

[1] CUNY City Coll, Inst Ultrafast Spect & Lasers, Ctr Ultrafast Photon, New York State Ctr Adv Technol,Dept Phys, New York, NY 10031 USA

[2] CUNY, Grad Sch, New York, NY 10031 USA

[3] CUNY City Coll, Dept Chem Engn, New York, NY 10031 USA

[4] CUNY City Coll, Dept Earth & Atmospher Sci, New York, NY 10031 USA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2006年 / 352卷 / 52-54期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

glass-ceramics; absorption; luminescence; germanates;

D O I：

10.1016/j.jnoncrysol.2006.09.015

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：

Synthesis and devitrification behavior of Cr-doped CaO-GeO2-Li2O-B2O3(Al2O3) glasses have been studied. A range of glass compositions was found to yield transparent glass-ceramics after devitrification. The size of crystallites is below 1 mu m. Glass-ceramic samples exhibit 1050-1600 nm broad-band emission with a maximum around 1260 nm, very similar to the emission of Cr4+ :Ca2GeO4 bulk crystals. X-ray diffraction measurements indicate that the structure of crystallites exhibiting near infrared emission in glass-ceramics may be assigned to Cr4+ :Ca2GeO4 with increased lattice parameters. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：5508 / 5514

页数：7

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