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Applied Physics Letters / Volume 96 / Issue 9 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 96, 093114 (2010); http://dx.doi.org/10.1063/1.3323108 (3 pages)

Engineering directed excitonic energy transfer

Alejandro Perdomo, Leslie Vogt, Ali Najmaie, and Alan Aspuru-Guzik

Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA

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(Received 13 August 2009; accepted 21 January 2010; published online 4 March 2010)

We provide an intuitive platform for engineering exciton transfer dynamics. We show that careful consideration of the spectral density, which describes the system-bath interaction, leads to opportunities to engineer exciton transfer. Since excitons in nanostructures are proposed for use in quantum information processing and artificial photosynthetic designs, our approach paves the way for engineering a wide range of desired exciton dynamics. We carefully describe the validity of the model and use experimentally relevant material parameters to show counter-intuitive examples of directed exciton transfer in a linear chain of quantum dots.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

excitons, nanostructured materials, quantum dots

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3323108

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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