Odoi, M. Y. and Hammer, N. I. and Early, K. T. and McCarthy, K. D. and Tangirala, R. and Emrick, T. and Barnes, M. D.. (2007) Fluorescence Lifetimes and Correlated Photon Statistics from Single CdSe/Oligo(phenylene vinylene) Composite Nanostructures. Nano Letters, 7 (9). pp. 2769-2773. ISSN 1530-6984
Full text not available from this repository. (Request a copy)Abstract
We present measurements of fluorescence intensity trajectories and associated excited-state decay times from individual CdSe/oligo(phenylene vinylene) (CdSe−OPV) quantum dot nanostructures using time-tagged, time-resolved (TTTR) photon counting techniques. We find that fluorescence decay times for the quantum dot emitter in these composite systems are at least an order of magnitude shorter than ZnS-capped CdSe quantum dot systems. We show that both the blinking suppression and associated lifetime/count rate behavior can be described by a modified version of the diffusive reaction coordinate model which couples slow fluctuations in quantum dot electron (1Se, 1Pe) energies to Auger-assisted hole trapping processes, hence modifying both blinking statistics and excited-state decay rates.
| Item Type: | Article |
|---|---|
| Additional Information: | Reprinted with permission from, "Fluorescence Lifetimes and Correlated Photon Statistics from Single CdSe/Oligo(phenylene vinylene) Composite Nanostructures", M. K. Odoi et.all, Nano Letters 7, 2767. Copyright 2007 American Chemical Society." |
| InterNano Taxonomy: | Nanoscale Objects and Nanostructured Materials > Nanocomposites Nanoscale Objects and Nanostructured Materials > Nanoparticles > Nanospheres Nanomanufacturing Characterization Techniques > Other Characterization Techniques > Laser induced fluorescence (LIF) Nanoscale Objects and Nanostructured Materials > Nanoparticles > Quantum confinement |
| Collections: | Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing Nanomanufacturing Research Collection |
| Depositing User: | Moureen Kemei |
| Date Deposited: | 08 Feb 2010 16:05 |
| Last Modified: | 19 Sep 2011 21:26 |
| URI: | http://eprints.internano.org/id/eprint/263 |
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