Charge carrier dynamics in semiconducting mercury cluster anions

Ryan M. Young; Graham B. Griffin; Oli T. Ehrler; Aster Kammrath; Arthur E. Bragg; Jan R.R. Verlet; Ori Cheshnovsky; Daniel M. Neumark

doi:10.1088/0031-8949/80/04/048102

Charge carrier dynamics in semiconducting mercury cluster anions

Ryan M. Young, Graham B. Griffin, Oli T. Ehrler, Aster Kammrath, Arthur E. Bragg, Jan R.R. Verlet, Ori Cheshnovsky, Daniel M. Neumark

School of Chemistry

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

10 Scopus citations

Abstract

We have examined size-dependent electronic relaxation dynamics in isolated semiconducting mercury cluster anions using time-resolved photoelectron imaging. Relaxation following excitation from within the conduction (p-) band occurs on an ∼3-40 ps timescale and is attributed to non-adiabatic relaxation through the p-band. Exciting an electron from the valence (s-) band into the conduction band creates an electron-hole pair that relaxes prior to Auger emission. The dynamics associated with this feature occur on an ∼500 fs timescale and are attributed to either a hole-induced contraction of the cluster or electron-electron scattering.

Original language	English
Article number	048102
Journal	Physica Scripta
Volume	80
Issue number	4
DOIs	https://doi.org/10.1088/0031-8949/80/04/048102
State	Published - 2009

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title = "Charge carrier dynamics in semiconducting mercury cluster anions",

abstract = "We have examined size-dependent electronic relaxation dynamics in isolated semiconducting mercury cluster anions using time-resolved photoelectron imaging. Relaxation following excitation from within the conduction (p-) band occurs on an ∼3-40 ps timescale and is attributed to non-adiabatic relaxation through the p-band. Exciting an electron from the valence (s-) band into the conduction band creates an electron-hole pair that relaxes prior to Auger emission. The dynamics associated with this feature occur on an ∼500 fs timescale and are attributed to either a hole-induced contraction of the cluster or electron-electron scattering.",

author = "Young, {Ryan M.} and Griffin, {Graham B.} and Ehrler, {Oli T.} and Aster Kammrath and Bragg, {Arthur E.} and Verlet, {Jan R.R.} and Ori Cheshnovsky and Neumark, {Daniel M.}",

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T1 - Charge carrier dynamics in semiconducting mercury cluster anions

AU - Young, Ryan M.

AU - Griffin, Graham B.

AU - Ehrler, Oli T.

AU - Kammrath, Aster

AU - Bragg, Arthur E.

AU - Verlet, Jan R.R.

AU - Cheshnovsky, Ori

AU - Neumark, Daniel M.

PY - 2009

Y1 - 2009

N2 - We have examined size-dependent electronic relaxation dynamics in isolated semiconducting mercury cluster anions using time-resolved photoelectron imaging. Relaxation following excitation from within the conduction (p-) band occurs on an ∼3-40 ps timescale and is attributed to non-adiabatic relaxation through the p-band. Exciting an electron from the valence (s-) band into the conduction band creates an electron-hole pair that relaxes prior to Auger emission. The dynamics associated with this feature occur on an ∼500 fs timescale and are attributed to either a hole-induced contraction of the cluster or electron-electron scattering.

AB - We have examined size-dependent electronic relaxation dynamics in isolated semiconducting mercury cluster anions using time-resolved photoelectron imaging. Relaxation following excitation from within the conduction (p-) band occurs on an ∼3-40 ps timescale and is attributed to non-adiabatic relaxation through the p-band. Exciting an electron from the valence (s-) band into the conduction band creates an electron-hole pair that relaxes prior to Auger emission. The dynamics associated with this feature occur on an ∼500 fs timescale and are attributed to either a hole-induced contraction of the cluster or electron-electron scattering.

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ER -

Charge carrier dynamics in semiconducting mercury cluster anions

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