NDLI: Energy transfer with semiconductor nanocrystals

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Journal of Materials Chemistry Vol - 19 Issue - 8

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Energy transfer with semiconductor nanocrystals

Content Provider	Royal Society of Chemistry (RSC)
Author	Lupton, John M. Meijerink, Andries Feldmann, Jochen Klar, Thomas A. Rogach, Andrey L.
Copyright Year	2009
Abstract	Förster (or fluorescence) resonant energy transfer (FRET) is a powerful spectroscopic technique to study interactions, conformational and distance changes, in hybrid nanosystems. Semiconductor nanocrystals, also known as colloidal quantum dots, are highly efficient fluorophores with a strong band-gap luminescence tuneable by size as a result of the quantum confinement effect. Starting from a short summary on the FRET formalism and on the basic properties of semiconductor nanocrystals, this Feature Article provides an overview of the major classes of hybrid FRET systems with semiconductor nanocrystals as at least one component. Systems under consideration include thin solid films containing differently sized semiconductor nanocrystals, solution-based complexes of differently sized semiconductor nanocrystals, nanocrystal-based bioconjugates, and hybrid structures of semiconductor and gold nanoparticles. We focus in particular on the directional energy transfer in layer-by-layer assembled multilayers of differently sized CdTe semiconductor nanocrystals and on the energy transfer from individual rod-like semiconductor CdSe/CdS nanoantennae to single dye molecules, which can be efficiently controlled by external electric fields leading to the realisation of the FRET optical switch.
Starting Page	1208
Ending Page	1221
Page Count	14
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	19
Issue Number	9
Journal	Journal of Materials Chemistry
DOI	10.1039/b812884g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Fluorescence Resonant inductive coupling Förster resonance energy transfer Nanotechnology Quantum Luminescence Semiconductor Thin Solid Films Dye laser Optical switch
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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