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Proceedings Paper

Single molecule study of Rhodamine/ATO nanoparticle junctions
Author(s): Wan-Hee Goh; Jianchang Guo; Rui Yuan; Tianquan Lian
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Paper Abstract

Single rhodamine B (RhB) molecule-Sb:SnO2(ATO) nanoparticle junctions were studied using two-photon excitation single molecule fluorescence spectroscopy. For each molecule-nanoparticle junction, fluorescence decay of RhB was found to be single exponential, indicating a static heterogeneous distribution of junction properties. The measured fluorescence lifetime is shorter than RhB on inert substrates but longer than that expected on ATO based on ensemble averaged electron transfer rates. Possible origins for the shorten single molecule lifetimes and distribution are discussed.

Paper Details

Date Published: 18 August 2005
PDF: 8 pages
Proc. SPIE 5929, Physical Chemistry of Interfaces and Nanomaterials IV, 592906 (18 August 2005); doi: 10.1117/12.618690
Show Author Affiliations
Wan-Hee Goh, Emory Univ. (United States)
Jianchang Guo, Emory Univ. (United States)
Rui Yuan, Emory Univ. (United States)
Tianquan Lian, Emory Univ. (United States)

Published in SPIE Proceedings Vol. 5929:
Physical Chemistry of Interfaces and Nanomaterials IV
Clemens Burda; Randy J. Ellingson, Editor(s)

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