Back to Search Start Over

Surface plasmon enhanced energy transfer between type I CdSe/ZnS and type II CdSe/ZnTe quantum dots

Authors :
Y. T. Chen
Pi-Tai Chou
C. W. Lai
C. M. Wei
C. H. Wang
Yang-Fang Chen
C. W. Chen
Mei-Lin Ho
Mario Hofmann
Source :
Applied Physics Letters. 96:071906
Publication Year :
2010
Publisher :
AIP Publishing, 2010.

Abstract

Fluorescence resonant energy transfer (FRET) has been investigated between donor-acceptor pairs of type I CdSe/ZnS and type II CdSe/ZnTe quantum dots (QDs). An Au nanoparticles assisted FRET enhancement was clearly demonstrated. It is found that the efficiency of the energy transfer depends on the excitation wavelength and is largest when in resonance with the Au surface plasmon mode. With the large tunability of the emission intensity in near infrared region, our finding paves an excellent route for creating highly efficient optoelectronic devices and bioimaging labels derived from type II QDs.

Details

ISSN :
10773118 and 00036951
Volume :
96
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........f7091ac41f4632ac54f3ac8e63db3e30