Measurement of discrete energy-level spectra in individual chemically-synthesized gold nanoparticles

Details Measurement of discrete energy-level spectra in individual chemically-synthesized gold nanoparticles Measurement of discrete energy-level spectra in individual chemically-synthesized gold nanoparticles

2008-09-03

arxiv.org/abs/0809.0670v2

Nano Lett., 8 (12), 4506-4512 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

15 pages, 5 figures; corrected typos, added journal reference

Scientific paper

10.1021/nl802473n

We form single-electron transistors from individual chemically-synthesized gold nanoparticles, 5-15 nm in diameter, with monolayers of organic molecules serving as tunnel barriers. These devices allow us to measure the discrete electronic energy levels of individual gold nanoparticles that are, by virtue of chemical synthesis, well-defined in their composition, size and shape. We show that the nanoparticles are non-magnetic and have spectra in good accord with random-matrix-theory predictions taking into account strong spin-orbit coupling.

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