Size-Dependent Raman Study of InP Quantum Dots

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

doi:10.1063/1.1535272

Size-Dependent Raman Study of InP Quantum Dots

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

Chemistry and Nanoscience

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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 language	American English
Pages (from-to)	185-187
Number of pages	3
Journal	Applied Physics Letters
Volume	82
Issue number	2
DOIs	https://doi.org/10.1063/1.1535272 https://doi.org/10.1063/1.1535272
State	Published - 2003

NREL Publication Number

NREL/JA-590-33857

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title = "Size-Dependent Raman Study of InP Quantum Dots",

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.",

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AU - Nozik, A. J.

AU - Mascarenhas, A.

AU - Cheong, Hyeonsik M.

PY - 2003

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AB - 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.

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DO - 10.1063/1.1535272

M3 - Article

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VL - 82

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JO - Applied Physics Letters

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Size-Dependent Raman Study of InP Quantum Dots

Abstract

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