Characterizing quantum-dot blinking using noise power spectra
- 2 August 2004
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 85 (5), 819-821
- https://doi.org/10.1063/1.1779356
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.Keywords
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