Effect of lattice contraction on the Raman shifts of CdSe quantum dots in glass matrices
Authors:
- 1 December 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 54 (21) , 15120-15124
Abstract
Phonon modes of CdSe quantum dots in various glass matrices are investigated by Raman spectroscopy. The phonon energies are observed to be dependent on the host matrix as well as the quantum dot size. We have shown that the lattice contraction effect must be introduced to explain the observed differences of the phonon energies for CdSe quantum dots in the different glass matrices.Keywords
This publication has 19 references indexed in Scilit:
- Theory of one-phonon Raman scattering in semiconductor microcrystallitesPhysical Review B, 1995
- Polar optical modes and electron-phonon interaction in semiconductor nanostructuresPhysical Review B, 1994
- Semiconductor Quantum Dots1993
- Absorption and intensity-dependent photoluminescence measurements on CdSe quantum dots: assignment of the first electronic transitionsJournal of the Optical Society of America B, 1993
- Raman scattering from CdSe microcrystals embedded in a germanate glass matrixPhysical Review B, 1992
- Nonlinear optical properties of quantum-confined CdSe microcrystallitesJournal of the Optical Society of America B, 1990
- Femtosecond optical nonlinearities of CdSe quantum dotsIEEE Journal of Quantum Electronics, 1989
- Quantum confinement effects of semiconducting microcrystallites in glassJournal of Applied Physics, 1987
- Zero-dimensional "excitons" in semiconductor clustersIEEE Journal of Quantum Electronics, 1986
- Quantum size effect in semiconductor microcrystalsSolid State Communications, 1985