Authors: Lu, Weigang; Fang, Jiye; Lin, Jun; Zhang, Jun; Sun, Zhaoyong; Stokes, Kevin L.

Source: Journal of Nanoscience and Nanotechnology, Volume 6, Number 6, June 2006 , pp. 1662-1666(5)

Publisher: American Scientific Publishers

Abstract:

Nanocrystals of Ag, PbSe, and PbTe were prepared via a high-temperature organic solution approach, respectively. Using a size-selection technique, the size-distribution of each set of nanocrystals could be fine-tuned and finally monodisperse products were achieved. Superlattice structure of binary self-assemblies in low size-ratio were also explored and characterized by transmission electron microscopy. It is realized that a success of achieving binary self-assembly pattern is greatly dependent on several key factors including particle size-distributions, relative concentrations of both components, as well as the size-ratios between Ag and PbSe (or PbTe) nanocrystals.

Keywords: BINARY SELF-ASSEMBLY; NANOCRYSTAL; MONODISPERSE; AG; PBSE; SIZE-RATIO; SIZE-SELECTION

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2006.228

Publication date: 2006-06-01

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