Nonradiative exciton energy transfer in hybrid organic-inorganic heterostructures
Nonradiative exciton energy transfer in hybrid organic-inorganic heterostructures
Nonradiative energy transfer from a GaAs quantum well to a thin overlayer of an infrared organic semiconductor dye is unambiguously demonstrated. The dynamics of exciton transfer are studied in the time domain by using pump-probe spectroscopy at the donor site and fluorescence spectroscopy at the acceptor site. The effect is observed as simultaneous increase in the population decay rate at the donor and of the rise time of optical emission at the acceptor sites. The hybrid configuration under investigation provides an alternative nonradiative, noncontact pumping route to electrical carrier injection that overcomes the losses imposed by the associated low carrier mobility of organic emitters.
carrier mobility, charge injection, dyes, excitons, fluorescence, gallium arsenide, III-V semiconductors, organic semiconductors, organic-inorganic hybrid materials, semiconductor heterojunctions, semiconductor quantum wells
193402-[4pp]
Chanyawadee, S.
859bf87d-c356-4935-ab66-e20f7a492dc9
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
Harley, R.T.
54613031-f60f-45f4-9b20-e49bcfd53b77
Lidzey, D.G.
5d7d3f80-7bec-4d49-ac6c-8746d604f672
Henini, M.
dffaac17-caab-4a18-9eb6-c858d8bb1ed2
14 May 2008
Chanyawadee, S.
859bf87d-c356-4935-ab66-e20f7a492dc9
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
Harley, R.T.
54613031-f60f-45f4-9b20-e49bcfd53b77
Lidzey, D.G.
5d7d3f80-7bec-4d49-ac6c-8746d604f672
Henini, M.
dffaac17-caab-4a18-9eb6-c858d8bb1ed2
Chanyawadee, S., Lagoudakis, P.G., Harley, R.T., Lidzey, D.G. and Henini, M.
(2008)
Nonradiative exciton energy transfer in hybrid organic-inorganic heterostructures.
Physical Review B, 77 (19), .
(doi:10.1103/PhysRevB.77.193402).
Abstract
Nonradiative energy transfer from a GaAs quantum well to a thin overlayer of an infrared organic semiconductor dye is unambiguously demonstrated. The dynamics of exciton transfer are studied in the time domain by using pump-probe spectroscopy at the donor site and fluorescence spectroscopy at the acceptor site. The effect is observed as simultaneous increase in the population decay rate at the donor and of the rise time of optical emission at the acceptor sites. The hybrid configuration under investigation provides an alternative nonradiative, noncontact pumping route to electrical carrier injection that overcomes the losses imposed by the associated low carrier mobility of organic emitters.
This record has no associated files available for download.
More information
Published date: 14 May 2008
Keywords:
carrier mobility, charge injection, dyes, excitons, fluorescence, gallium arsenide, III-V semiconductors, organic semiconductors, organic-inorganic hybrid materials, semiconductor heterojunctions, semiconductor quantum wells
Organisations:
Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 50848
URI: http://eprints.soton.ac.uk/id/eprint/50848
ISSN: 1550-235X
PURE UUID: 874a5fd9-3b7f-4795-a061-679996176655
Catalogue record
Date deposited: 12 Dec 2008
Last modified: 15 Mar 2024 10:12
Export record
Altmetrics
Contributors
Author:
S. Chanyawadee
Author:
P.G. Lagoudakis
Author:
R.T. Harley
Author:
D.G. Lidzey
Author:
M. Henini
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics