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Characterizing Quantum-Dot Blinking Using Noise Power Spectra

Matthew Pelton·David Grier·Philippe Guyot-Sionnest
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Abstract

Fluctuations in the fluorescence from macroscopic ensembles of colloidal semiconductor quantum dots have the spectral form of 1/f noise. The measured power spectral density reflects the fluorescence intermittency of individual dots with power-law distributions of "on" and "off" times, and can thus serve as a simple method for characterizing such blinking behavior.

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Matthew Pelton, David Grier, Philippe Guyot-Sionnest. 2004-04-23. Characterizing Quantum-Dot Blinking Using Noise Power Spectra. https://doi.org/10.1063/1.1779356

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