Interplay of factors affecting Raman scattering in cadmium chalcogenide nanocrystals in dielectric media

被引：29

作者：

Azhniuk, Yu M. ^{[1
]}

Hutych, Yu I. ^{[1
]}

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

Raevskaya, A. E. ^{[2
]}

Stroyuk, A. L. ^{[2
]}

Kuchmiy, S. Ya ^{[2
]}

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

Zahn, D. R. T. ^{[3
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Electron Phys, Univ Ska Str 21, UA-88017 Uzhgorod, Ukraine

[2] Ukr Nat Acad Sci, Inst Phys Chem, UK-03028 Kiev, Ukraine

[3] Tech Univ Chemnitz, Semicond Phys, D-09107 Chemnitz, Germany

来源：

XIII INTERNATIONAL SEMINAR ON PHYSICS AND CHEMISTRY OF SOLIDS | 2007年 / 79卷

关键词：

D O I：

10.1088/1742-6596/79/1/012017

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Micro-Raman spectra of CdS and CdSe nanocrystals embedded in different dielectric media (borosilicate glass, gelatin, polyacrylamide, polyvinyl alcohol) are studied. The observed Raman features are discussed with the account of confinement-related selection rules relaxation, scattering by surface phonons, and host matrix pressure. For nanocrystals grown in borosilicate glass a pronounced resonant dependence of surface phonon frequency on the excitation wavelength is observed. The effect of the excitation wavelength is much stronger than that of the nanocrystal size or the dielectric matrix type.

引用

页数：6

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