Quantum dots coordinated with conjugated organic ligands: new nanomaterials with novel photophysics

Nathan L. Hammer, University of Massachusetts - Amherst
Todd S. Emrick, University of Massachusetts - Amherst
Michael D. Barnes, University of Massachusetts - Amherst

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This article was harvested from BioMed Central DOI 10.1007/s11671-007-9062-8
This work is licensed under a Creative Commons Attribution 3.0 Unported License.

Abstract

CdSe quantum dots functionalized with oligo-(phenylene vinylene) (OPV) ligands (CdSe-OPV nanostructures) represent a new class of composite nanomaterials with significantly modified photophysics relative to bulk blends or isolated components. Singlemolecule spectroscopy on these species have revealed novel photophysics such as enhanced energy transfer, spectral stability, and strongly modified excited state lifetimes and blinking statistics. Here, we review the role of ligands in quantum dot applications and summarize some of our recent efforts probing energy and charge transfer in hybrid CdSe-OPV composite nanostructures