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Browse Journals & Magazines > Applied Physics Letters ...> Volume:93 Issue:18 Help

Composition effects on quantum dot-based resonance energy transfer

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2 Author(s)
Sadhu, Suparna ; Department of Materials Science and Centre for Advanced Materials, Indian Association for the Cultivation of Science, Kolkata 700 032, India ; Patra, Amitava

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3020299 

The effect of composition on resonance energy transfer between CdxZn1-xS quantum dot (donor) and Nile red dye (acceptor) is studied by steady state and time-resolved spectroscopy. The energy transfer efficiency varies from 14% to 47% with change in the composition from Cd0.31Zn0.69S to Cd0.62Zn0.38S nanocrystals which follows the Förster resonance energy transfer process. Considering single donor and multiple acceptors interactions, the calculated average distances (rn) between donor and acceptor are 25.8, 31.6, and 39.9 Å for Cd0.62Zn0.38S, Cd0.52Zn0.48S, and Cd0.31Zn0.69S nanocrystals, respectively.

Published in:
Applied Physics Letters  (Volume:93 ,  Issue: 18 )

Date of Publication: Nov 2008

Page(s):
183104 - 183104-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.3020299
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Nov 2008

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