Self-Assembled Binary Superlattices of CdSe and Au Nanocrystals and Their Fluorescence Properties

J. Am. Chem. Soc., 130 (11), 3274 -3275, 2008. 10.1021/ja710619s S0002-7863(71)00619-X
Web Release Date: February 23, 2008

Self-Assembled Binary Superlattices of CdSe and Au Nanocrystals and Their Fluorescence Properties

Elena V. Shevchenko, Moritz Ringler, Alexander Schwemer, Dmitri V. Talapin,* Thomas A. Klar, Andrey L. Rogach,* Jochen Feldmann, and A. Paul Alivisatos

The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720 and Photonics and Optoelectronics Group, Physics Department and Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstr. 54, 80799 Munich, Germany

andrey.rogach@physik.uni-muenchen.de; dvtalapin@uchicago.edu

Received November 27, 2007

Abstract:

Different types of Binary Nanoparticle Superlattices (BNSLs) have been self-assembled from monodisperse 8.7 nm CdSe and 5.5 nm Au nanocrystals. Fluorescence spectroscopy studies of AlB₂-type BNSL of CdSe and Au nanocrystals revealed considerably decreased fluorescence and a shortened fluorescence lifetime of the CdSe NCs in BNSLs compared to the CdSe-only sample.

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