Three-pulse photon echo peak shift measurements of capped cdse quantum dots

Craig N Lincoln; Jacek Jaroslaw Jasieniak; Trevor Alexander Smith; Lachlan J McKimmie

doi:10.1021/jp9083103

Three-pulse photon echo peak shift measurements of capped cdse quantum dots

Craig N Lincoln, Jacek Jaroslaw Jasieniak, Trevor Alexander Smith, Lachlan J McKimmie

Research output: Contribution to journal › Article › Research › peer-review

29 Citations (Scopus)

Abstract

In this article, the results of femtosecond three-pulse photon echo peak shift (3-PEPS) measurements are reported for a series of cadmium selenide core-shell semiconductor nanocrystals. The peak shift data were found to be highly dependent on the shell compositions and particle morphologies. The static inhomogeneity parameter was found to vary from 10 cm(-1) for highly isotropic particles to 170 cm(-1) for particles with a broad size distribution. We also discuss the high-frequency (approximate to 212 cm(-1)) longitudinal optical (LO) phonon and the low-frequency (approximate to 13-19 cm(-1)) longitudinal acoustic (LA) phonon modes (omega(00)) and how the damping times and frequencies also depend on the choice of capping material

Original language	English
Pages (from-to)	82 - 88
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	114
Issue number	1
DOIs	https://doi.org/10.1021/jp9083103
Publication status	Published - 2010
Externally published	Yes

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title = "Three-pulse photon echo peak shift measurements of capped cdse quantum dots",

abstract = "In this article, the results of femtosecond three-pulse photon echo peak shift (3-PEPS) measurements are reported for a series of cadmium selenide core-shell semiconductor nanocrystals. The peak shift data were found to be highly dependent on the shell compositions and particle morphologies. The static inhomogeneity parameter was found to vary from 10 cm(-1) for highly isotropic particles to 170 cm(-1) for particles with a broad size distribution. We also discuss the high-frequency (approximate to 212 cm(-1)) longitudinal optical (LO) phonon and the low-frequency (approximate to 13-19 cm(-1)) longitudinal acoustic (LA) phonon modes (omega(00)) and how the damping times and frequencies also depend on the choice of capping material",

author = "Lincoln, {Craig N} and Jasieniak, {Jacek Jaroslaw} and Smith, {Trevor Alexander} and McKimmie, {Lachlan J}",

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doi = "10.1021/jp9083103",

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journal = "Journal of Physical Chemistry C",

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T1 - Three-pulse photon echo peak shift measurements of capped cdse quantum dots

AU - Lincoln, Craig N

AU - Jasieniak, Jacek Jaroslaw

AU - Smith, Trevor Alexander

AU - McKimmie, Lachlan J

PY - 2010

Y1 - 2010

N2 - In this article, the results of femtosecond three-pulse photon echo peak shift (3-PEPS) measurements are reported for a series of cadmium selenide core-shell semiconductor nanocrystals. The peak shift data were found to be highly dependent on the shell compositions and particle morphologies. The static inhomogeneity parameter was found to vary from 10 cm(-1) for highly isotropic particles to 170 cm(-1) for particles with a broad size distribution. We also discuss the high-frequency (approximate to 212 cm(-1)) longitudinal optical (LO) phonon and the low-frequency (approximate to 13-19 cm(-1)) longitudinal acoustic (LA) phonon modes (omega(00)) and how the damping times and frequencies also depend on the choice of capping material

AB - In this article, the results of femtosecond three-pulse photon echo peak shift (3-PEPS) measurements are reported for a series of cadmium selenide core-shell semiconductor nanocrystals. The peak shift data were found to be highly dependent on the shell compositions and particle morphologies. The static inhomogeneity parameter was found to vary from 10 cm(-1) for highly isotropic particles to 170 cm(-1) for particles with a broad size distribution. We also discuss the high-frequency (approximate to 212 cm(-1)) longitudinal optical (LO) phonon and the low-frequency (approximate to 13-19 cm(-1)) longitudinal acoustic (LA) phonon modes (omega(00)) and how the damping times and frequencies also depend on the choice of capping material

UR - http://pubs.acs.org.ezproxy.lib.monash.edu.au/doi/pdf/10.1021/jp9083103

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VL - 114

SP - 82

EP - 88

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 1

ER -

Three-pulse photon echo peak shift measurements of capped cdse quantum dots

Abstract

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