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Proceedings Paper

Environmental effects on photoinduced electron transfer and fluorescence blinking of single semiconducting nanocrystals in various matrices
Author(s): H. C. Ko; C. T. Yuan; Ping Yu; Jane Huang; Jau Tang
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Paper Abstract

In this report we explore how the surrounding environments around a single semiconducting nancrystal affect the photoinduced electron transfer, charge trapping fluorescence lifetime and fluorescence blinking. Using the time-correlated single photon counting techniques combined with confocal microscopy, we investigated photoluminescence of single CdSe/ZnS quantum dots embedded in agarose gel and on conductive substrates as examples. Understanding of the underlying mechanisms would allow us to better control of the photoluminescence properties of nanoparticles and to improve their performance in biophotonics and optoelectronics applications such as fluorescence markers, single-photon sources, photovoltaics and quantum dot lasers.

Paper Details

Date Published: 30 August 2010
PDF: 12 pages
Proc. SPIE 7758, Physical Chemistry of Interfaces and Nanomaterials IX, 77580U (30 August 2010); doi: 10.1117/12.858855
Show Author Affiliations
H. C. Ko, Tsing Hua Univ. (Taiwan)
Academia Sinica (Taiwan)
C. T. Yuan, Academia Sinica (Taiwan)
Ping Yu, Academia Sinica (Taiwan)
Jane Huang, Academia Sinica (Taiwan)
Jau Tang, Academia Sinica (Taiwan)
National Chiao-Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7758:
Physical Chemistry of Interfaces and Nanomaterials IX
Oleg V. Prezhdo, Editor(s)

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