Size dependence of electron-LO-phonon coupling in semiconductor nanocrystals

被引：125

作者：

Scamarcio, G ^{[1
]}

Spagnolo, V ^{[1
]}

Ventruti, G ^{[1
]}

Lugara, M ^{[1
]}

Righini, GC ^{[1
]}

机构：

[1] CNR,IROE,I-50127 FLORENCE,ITALY

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.53.R10489

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An increase in the Frohlich-electron-LO-phonon interaction strength with decreasing nanocrystal size in the strong confinement limited is reported. This results from the size dependence of resonant Raman scattering by CdSxSe1-x nanocrystals embedded in a glass slab. The mean particle radius 20<(R) over bar<30 Angstrom increases monotonically with the position along the slab so that, for each laser Line, the resonance has been tuned by scanning the sample with a microprobe. The relative strength between Frohlich and deformation-potential contributions is determined by analyzing the polarization properties of the scattering.

引用

页码：10489 / 10492

页数：4

共 17 条

[1] ELECTRON-VIBRATION COUPLING IN SEMICONDUCTOR CLUSTERS STUDIED BY RESONANCE RAMAN-SPECTROSCOPY [J].