Large array of sub-10 nm single-grain Au nanodots for use in nanotechnology

Details Large array of sub-10 nm single-grain Au nanodots for use in nanotechnology Large array of sub-10 nm single-grain Au nanodots for use in nanotechnology

2011-06-22

arxiv.org/abs/1106.4470v1

SMALL 7 (18) pp. 2607-2613 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

In press. One file, including the manuscript and supplementary information

Scientific paper

10.1002/smll.201100915

A uniform array of single-grain Au nanodots, as small as 5-8 nm, can be formed on silicon using e-beam lithography. The as-fabricated nanodots are amorphous, and thermal annealing converts them to pure Au single crystals covered with a thin SiO2 layer. These findings are based on physical measurements, such as atomic force microscopy (AFM), atomic resolution scanning transmission electron microscopy, and chemical techniques using energy dispersive x-ray spectroscopy. A self-assembled organic monolayer is grafted on the nanodots and characterized chemically with nanometric lateral resolution. We use the extended uniform array of nanodots as a new test-bed for molecular electronics devices.

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