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Energy and Charge Transfer Dynamics Between Alq3 and CdSeS Nanocrystals

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Abstract:

The photoluminescence properties of the blend films consisting of organic small molecules and nanocrystals (NCs)—Alq3 and CdSeS NCs—were studied by steady-state and time-resolved photoluminescence (PL) spectroscopy with different excited wavelengths. Both the fluorescence intensity and lifetime are intensively dependent on the NC concentration. The detailed analysis of experiment data proves that Förster energy transfer from the Alq3 to the NCs exists simultaneously with the charge transfer and both compete with each other in the blend films.

Keywords: ALQ3; CDSES NANOCRYSTALS; CHARGE TRANSFER; FORSTER ENERGY TRANSFER

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2109

Publication date: March 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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