Quantum efficiency of stimulated emission in colloidal semiconductor nanocrystal quantum dots

  • Zhang C
  • Xu J
  • Zhu T
 et al. 
  • 3

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.

Abstract

External differential quantum efficiencies were studied for the stimulated emission of thin films of colloidal CdSe/CdS/ZnS nanocrystal quantum dots (NQDs) using the integrating sphere technique. A maximum efficiency of 34% was measured for the stimulated emission in NQDs which far exceeds that for spontaneous emission (9%). The competition between the radiative exciton/biexciton recombination and the carrier density-dependent nonradiative relaxation processes in NQDs was modeled to account for the observed difference in efficiency. © 2009 The American Physical Society.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • C Zhang

  • J Xu

  • T Zhu

  • F Zhang

  • Z Tan

  • S J Schiff

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free