• Home
  • Search Results
  • Thermal Recovery of Colloidal Quantum Dot Ensembles Following Photoinduced Dimming.

Thermal Recovery of Colloidal Quantum Dot Ensembles Following Photoinduced Dimming.

The journal of physical chemistry letters (2015-08-13)
Russell A Jensen, Igor Coropceanu, Yue Chen, Moungi G Bawendi
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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
BES, ≥99.0% (titration)
Sigma-Aldrich
BES, BioPerformance Certified, suitable for cell culture, ≥99.0%
Sigma-Aldrich
BES, BioXtra, ≥99.0% (titration)
Sigma-Aldrich
BES, BioXtra, for molecular biology, ≥99.5% (T)

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.