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This article is cited in 11 scientific papers (total in 11 papers)
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Blinking fluorescence of single semiconductor nanocrystals: basic experimental facts and the theoretical models of blinking
I. S. Osad'ko Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow
Abstract:
Various theoretical models of blinking fluorescence from a single semiconductor core–shell nanocrystal (NC) are discussed from the standpoint of consistency with new experimental data, with most of the emphasis placed on the charging model and the multiple recombination center model. The advantages and disadvantages of each are analyzed, and their recently proposed combination using the advantages of both is examined, which is capable of describing the recently observed properties of A- and B-type NCs (the two types differ by whether the fluorescence quantum yield of a single NC correlates with its fluorescence lifetime). It is shown that the Auger neutralization of the NC core results in an anticorrelation of the off-interval duration and the grey emission lifetime in the off-interval. It is also shown that the exponent in the ${t}^{m}$ power-law distribution of on- and off-intervals in the fluorescence of single NCs characterizes the concentration of traps and localized NC core excitations at the core–shell interface.
Received: October 6, 2015 Revised: December 22, 2015 Accepted: December 23, 2015
Citation:
I. S. Osad'ko, “Blinking fluorescence of single semiconductor nanocrystals: basic experimental facts and the theoretical models of blinking”, UFN, 186:5 (2016), 489–502; Phys. Usp., 59:5 (2016), 462–474
Linking options:
https://www.mathnet.ru/eng/ufn5424 https://www.mathnet.ru/eng/ufn/v186/i5/p489
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Abstract page: | 207 | Full-text PDF : | 70 | References: | 24 |
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