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

Research output: Contribution to journalArticle

6 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 languageEnglish (US)
Article number048102
JournalPhysica Scripta
Volume80
Issue number4
DOIs
StatePublished - Nov 27 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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    Young, R. M., Griffin, G. B., Ehrler, O. T., Kammrath, A., Bragg, A. E., Verlet, J. R. R., Cheshnovsky, O., & Neumark, D. M. (2009). Charge carrier dynamics in semiconducting mercury cluster anions. Physica Scripta, 80(4), [048102]. https://doi.org/10.1088/0031-8949/80/04/048102