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Optical phonon modes of InP/II-VI core-shell nanoparticles: A Raman and infrared study

  • SUNY Buffalo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Crystalline nanoparticles having ∼ 3nm diameter InP cores surrounded by different II-VI cladding layers have been synthesized by colloidal chemistry. We report studies of the confined optical phonons in InP/ZnSe core-shell nanocrystals by Raman scattering and far-infrared (FIR) spectroscopy as a function or temperature. Based on comparison with a dielectric continuum model, the observed features are assigned to the surface optical (SO) modes of the InP core, and to the optical and SO modes of the ZnSe shell. Reasonable agreement is obtained between the Raman and FIR results, as well as with the calculations. Strong temperature dependent resonance Raman effects are observed.

Original languageEnglish
Title of host publicationPHYSICS OF SEMICONDUCTORS
Subtitle of host publication27th International Conference on the Physics of Semiconductors, ICPS-27
Pages847-848
Number of pages2
DOIs
StatePublished - Jun 30 2005
EventPHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 - Flagstaff, AZ, United States
Duration: Jul 26 2004Jul 30 2004

Publication series

NameAIP Conference Proceedings
Volume772
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferencePHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27
Country/TerritoryUnited States
CityFlagstaff, AZ
Period07/26/0407/30/04

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