Abstract
- Received 6 December 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.259901
© 2011 American Physical Society
Publisher’s Note: Observation of Size-Dependent Thermalization in CdSe Nanocrystals Using Time-Resolved Photoluminescence Spectroscopy [Phys. Rev. Lett. 107, 177403 (2011)]
Daniel C. Hannah, Nicholas J. Dunn, Sandrine Ithurria, Dmitri V. Talapin, Lin X. Chen, Matthew Pelton, George C. Schatz, and Richard D. Schaller
Phys. Rev. Lett. 107, 259901 – Published 13 December 2011
Images
Figure 1
(a) Temporally and spectrally resolved single exciton PL from a 1.6-nm-radius CdSe NC ensemble at 2.6 K and (b) at 80 K. Here, lower sample temperature results in a faster emission feature as well as a spectral shift to lower energy with time. (c),(d) Time-resolved spectra collected at the indicated temperatures and binned over the indicated time delays reveal a redshift with increasing time at 2.6 K that is not observed at 80 K. Spectra are linearly offset for clarity. The black vertical lines indicate the peak emission amplitude of the 320–340 ps time-binned spectrum. (e),(f) Spectrally resolved PL dynamics become biexponential for shorter PL wavelengths in the case of the lower sample temperature.Reuse & Permissions