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• Riley, E
• Hess, C
• Reid, P
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• Riley, E
• Hess, C
• Reid, P
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• Riley, E
• Hess, C
• Reid, P

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Int. J. Mol. Sci. 2012, 13(10), 12487-12518; doi:10.3390/ijms131012487

Review

Photoluminescence Intermittency from Single Quantum Dots to Organic Molecules: Emerging Themes

Erin A. Riley, Chelsea M. Hess and Philip J. Reid*

Department of Chemistry, University of Washington, Box 351700, Seattle, WA 98195, USA

* Author to whom correspondence should be addressed.

Received: 1 August 2012; in revised form: 11 September 2012 / Accepted: 17 September 2012 / Published: 28 September 2012

(This article belongs to the Special Issue Advances in Single Molecule Spectroscopy)

Download PDF Full-Text [2058 KB, uploaded 28 September 2012 14:55 CEST]

Abstract: Recent experimental and theoretical studies of photoluminescence intermittency (PI) or “blinking” exhibited by single core/shell quantum dots and single organic luminophores are reviewed. For quantum dots, a discussion of early models describing the origin of PI in these materials and recent challenges to these models are presented. For organic luminophores the role of electron transfer, proton transfer and other photophysical processes in PI are discussed. Finally, new experimental and data analysis methods are outlined that promise to be instrumental in future discoveries regarding the origin(s) of PI exhibited by single emitters.

Keywords: semiconducting nanocrystals; single molecule spectroscopy; power-law; Auger recombination; blinking; biexciton; multiexciton; fluorescence; proton transfer; electron transfer

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