Environment-dependent blinking of single semiconductor nanocrystals and statistical aging of ensembles |
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| Authors: | R. Verberk J.W.M. Chon M. Gu M. Orrit |
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| Affiliation: | aMolecular Nano-Optics and Spins (MoNOS), Huygens Laboratory, Niels Bohrweg 2, 2333 CA Leiden, The Netherlands;bCentre for Micro-Photonics, School of Biophysical Sciences & Electrical Engineering, Swinburne University of Technology, P.O. Box 218 Hawthorn, Victoria 3122, Australia |
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| Abstract: | We compare decreasing fluorescence signals from ensembles with the blinking statistics of individual nanocrystals in various environments. For most substrates, the ensemble decay follows a power-law of time, the exponent being the difference of the power-law exponents of on- and off-time distributions. The decay exponent is also found to depend on substrate. We discuss possible mechanisms for this dependence, in conjunction with previously published models. |
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| Keywords: | Single nanocrystals Semiconductor Environment Blinking |
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