SnO2 nanocrystals in SiO2:: A wide-band-gap quantum-dot system

被引：139

作者：

Chiodini, N ^{[1
]}

Paleari, A ^{[1
]}

Di Martino, D ^{[1
]}

Spinolo, G ^{[1
]}

机构：

[1] Univ Milano Bicocca, Dept Mat Sci, Ist Nazl Fis Mat, I-20125 Milan, Italy

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 09期

关键词：

D O I：

10.1063/1.1503154

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanoclusters of crystalline SnO2 have been grown in glass, starting from tin-doped silica prepared by a sol-gel method. Based upon a particular choice of molecular precursors, nanocrystallites with a mean radius of about 1 nm and a quite narrow size dispersion were obtained, resulting in wide-band-gap (>4 eV) quantum dots (QDs). In this system, differently from other semiconductor-doped glasses, both the glassy host and the nanophase are oxides of IV-group elements. Owing to their thermochemical compatibility, the two phases give stable optical-grade glass ceramics with potential applications in photonics, opening up the field to technological employments of wide-band-gap QDs. (C) 2002 American Institute of Physics.

引用

页码：1702 / 1704

页数：3

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