Azobenzene on Cu(110): adsorption site-dependent diffusion

Journal of the American Chemical Society
Jill A MiwaTrolle R Linderoth

Abstract

Azobenzene and its derivatives can undergo reversible trans-cis isomerizations when irradiated with light, making them potential candidates for optically sensitive materials and devices. The adsorption and diffusion of azobenzene on the Cu(110) surface was investigated with a variable-temperature scanning tunneling microscope. The trans-isomer was observed and found to occupy two adsorption geometries-an energetically stable and a metastable state. Diffusion occurred along the closed-packed [1 -1 0] direction of the surface, and the diffusivity for the two adsorption states was found to differ by approximately 1 order of magnitude.

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Citations

Jul 8, 2011·Nano Letters·Yong-Tao ShenJian Ru Gong
Apr 14, 2007·Annual Review of Physical Chemistry·Johannes V Barth
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