0
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Thermal Recovery of Colloidal Quantum Dot Ensembles Following Photoinduced Dimming.

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Colloidal CdSe quantum dot (QD) core ensembles were photodimmed and allowed to recover in the dark using ambient thermal energy at a range of temperatures. Nonlinear thermal recovery is well described by a stretched exponential function, and further analysis yields an underlying probability distribution of rate constants. Casting the rate constants as a collection of first-order activated processes provides an activation barrier probability distribution with significant density at room-temperature thermal energy that peaks at 200 meV before decaying to zero. This treatment for the recovery transition intuitively describes the distributed kinetics observed and complements commonly proposed blinking mechanisms.

          Related collections

          Author and article information

          Journal
          J Phys Chem Lett
          The journal of physical chemistry letters
          American Chemical Society (ACS)
          1948-7185
          1948-7185
          Aug 06 2015
          : 6
          : 15
          Affiliations
          [1 ] Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
          Article
          10.1021/acs.jpclett.5b00989
          26267184
          94758839-7241-4131-aa39-ce4a4fd583ae
          History

          quantum dot,thermal recovery,stretched exponential,blinking

          Comments

          Comment on this article