The relaxation pathways of CdSe nanoparticles monitored with femtosecond time-resolution from the visible to the IR: Assignment of the transient features by carrier quenching

Clemens Burda, Stephan Link, Mona Mohamed, Mostafa El-Sayed

Research output: Contribution to journalArticlepeer-review

Abstract

The relaxation pathway of the excited charge carriers in CdSe nanoparticles (NP) was monitored by the spectral dynamics in the visible, near-infrared (NIR), and infrared (IR) range. The observed dynamics was assigned to the electron or the hole using electron and hole quenchers to the photoexcited NPs. A decay time of 1.2 ps was found for the transient absorption observed in the NIR.

Original languageEnglish (US)
Pages (from-to)12286-12292
Number of pages7
JournalJournal of Physical Chemistry B
Volume105
Issue number49
DOIs
StatePublished - Dec 13 2001
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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