Evidence for formation of Se molecular clusters during precipitation of CdSe1-x S x nanoparticles in glass

被引：9

作者：

Azhniuk, Y. M. ^{[1
]}

Gomonnai, A. V. ^{[1
]}

Hutych, Y. I. ^{[1
]}

Lopushansky, V. V. ^{[1
]}

Prots, L. A. ^{[1
]}

Turok, I. I. ^{[1
]}

Zahn, D. R. T. ^{[2
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Electron Phys, UA-88017 Uzhgorod, Ukraine

[2] Tech Univ Chemnitz, D-09107 Chemnitz, Germany

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2009年 / 95卷 / 02期

关键词：

RAMAN-SCATTERING; CDS1-XSEX NANOCRYSTALS; RESONANT RAMAN; SEMICONDUCTOR NANOCRYSTALS; QUANTUM DOTS; SIZE; SELENIUM; SPECTRA; GROWTH; CONFINEMENT;

D O I：

10.1007/s00339-008-4918-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

While studying the effect of thermal treatment at 625-700A degrees C on the formation of borosilicate glass-embedded CdSe or CdSe1-x S (x) nanocrystals, pronounced bands at 323 and 646 cm(-1) were observed in the Raman spectra. They are assigned to Se-2 clusters on the base of their frequency positions, widths, intensities, and resonance behavior. The precipitation of Se-2 molecular clusters in borosilicate glass is shown to occur when the heat treatment temperature and/or duration are beyond the range, most suitable for the formation of CdSe or CdSe-rich CdSe1-x S (x) nanocrystals.

引用

页码：473 / 477

页数：5

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