Effect of heat-treatment on luminescence and structure of Ag nanoclusters doped oxyfluoride glasses and implication for fiber drawing

被引：29

作者：

Kuznetsov, A. S. ^{[1
]}

Cuong, Ngo T. ^{[2
]}

Tikhomirov, V. K. ^{[1
]}

Jivanescu, M. ^{[1
]}

Stesmans, A. ^{[1
]}

Chibotaru, L. F. ^{[2
]}

Velazquez, J. J. ^{[3
]}

Rodriguez, V. D. ^{[3
]}

Kirilenko, D. ^{[4
]}

Van Tendeloo, G. ^{[4
]}

Moshchalkov, V. V. ^{[4
]}

机构：

[1] Katholieke Univ Leuven, INPAC Inst Nanoscale Phys & Chem, Louvain, Belgium

[2] Katholieke Univ Leuven, Div Quantum & Phys Chem, Louvain, Belgium

[3] Univ La Laguna, Dept Fis Fundamental & Expt Elect & Syst, Tenerife, Spain

[4] Univ Antwerp, EMAT, Antwerp, Belgium

来源：

OPTICAL MATERIALS | 2012年 / 34卷 / 04期

关键词：

Silver nanoclusters; Oxyfluoride glass; Luminescence; Silver nanoclusters doped fiber; Silver nanocluster formation mechanism; METAL-CLUSTERS; LIGHT-EMISSION; CERAMICS; AGGLOMERATION; TEMPERATURE; CRYSTALS;

D O I：

10.1016/j.optmat.2011.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of heat treatment on the structure and luminescence of Ag nanoclusters doped oxyfluoride glasses was studied and the implication for drawing the corresponding fibers doped with luminescent Ag nanoclusters has been proposed. The heat treatment results, first, in condensation of the Ag nanoclusters into larger Ag nanoparticles and loss of Ag luminescence, and further heat treatment results in precipitation of a luminescent-loss nano- and microcrystalline Ag phases onto the surface of the glass. Thus, the oxyfluoride fiber doped with luminescent Ag nanoclusters was pulled from the viscous glass melt and its attenuation loss was 0.19 dB/cm in the red part of the spectrum; i.e. near to the maximum of Ag nanoclusters luminescence band. The nucleation centers for the Ag nanoclusters in oxyfluoride glasses have been suggested to be the fluorine vacancies and their nanoclusters. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：616 / 621

页数：6

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