Scopus Publication Detail
The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in Scopus. This abstract is what is used to create the fingerprint of the publication.
Nano-engineered electron-hole exchange interaction controls exciton dynamics in core-shell semiconductor nanocrystals
S. Brovelli; R.D. Schaller; S.A. Crooker; F. García-Santamaría; Y. Chen; R. Viswanatha; J.A. Hollingsworth; H. Htoon; V.I. Klimov (Profiled Author: Richard Daniel Schaller)
Nature Communications. 2011;2(1).Abstract
A strong electron-hole exchange interaction (EI) in semiconductor nanocrystals (NCs) gives rise to a large (up to tens of meV) splitting between optically active ('bright') and optically passive ('dark') excitons. This dark-bright splitting has a significant effect on the optical properties of band-edge excitons and leads to a pronounced temperature and magnetic field dependence of radiative decay. Here we demonstrate a nanoengineering-based approach that provides control over EI while maintaining nearly constant emission energy. We show that the dark-bright splitting can be widely tuned by controlling the electron-hole spatial overlap in core-shell CdSe/CdS NCs with a variable shell width. In thick-shell samples, the EI energy reduces to <250 μeV, which yields a material that emits with a nearly constant rate over temperatures from 1.5 to 300 K and magnetic fields up to 7 T. The EI-manipulation strategies demonstrated here are general and can be applied to other nanostructures with variable electron-hole overlap. © 2011 Macmillan Publishers Limited. All rights reserved.
PMID: 21505436 PMCID: PMC3127490
This section shows information related to the publication - computed using the fingerprint of the publication - including related publications, related experts with fingerprints representing significant amounts of overlap between their fingerprint and this publication. The red dots indicate whether those experts or terms appear within the publication, thereby showing potential and actual connections.
Louise R. Giam; Shu He; Noah E. Horwitz; Daniel J. Eichelsdoerfer; Jinan Chai; Zijian Zheng; Dongwoo Kim; Wooyoung Shim; Chad A. MirkinNano Letters. 2012;12(2):1022-1025.
Mrinmoy De; Stanley S. Chou; Hrushikesh M. Joshi; Vinayak P. DravidAdvanced Drug Delivery Reviews. 2011;63(14-15):1282-1299.
Heung Cho Ko; Gunchul Shin; Shuodao Wang; Mark P. Stoykovich; Jeong Won Lee; Dong-Hun Kim; Jeong Sook Ha; Yonggang Huang; Keh-Chih Hwang; John A. RogersSmall. 2009;5(23):2703-2709.
Appears in this Document