Size-Dependent Raman Study of InP Quantum Dots

M. J. Seong, Olga I. Mićić, A. J. Nozik, A. Mascarenhas, Hyeonsik M. Cheong

Research output: Contribution to journalArticlepeer-review

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Abstract

Size-dependence of the Raman spectrum of InP quantum dots (QD) was investigated. Characterization of Raman spectrum was performed by transverse (TO) and longitudinal (LO) optical modes as well as surface optical modes, occurring between the TO and LO modes. The LO phonon frequency was found to decrease and TO phonon frequency increased with decreasing QD size. Results also showed that the electron-phonon coupling decreased with decreasing QD size.

Original languageAmerican English
Pages (from-to)185-187
Number of pages3
JournalApplied Physics Letters
Volume82
Issue number2
DOIs
StatePublished - 2003

NREL Publication Number

  • NREL/JA-590-33857

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