Cover Picture: Journal of the Chinese Chemical Society 1/2012

Donor‐ or acceptor‐substituted azobenzenethiol monolayers were used to modify the Au electrode surface. Photo‐switching of the azobenzene moiety resulted in changes in the work function of the metal, as well as the packing order of the monolayer at the surface, both of which modulate the electron transfer between the electrode and the redox couple in a contacting solution. This figure was contributed by Prof. Yu‐Tai Tao, now the Distinguished Research Fellow of the Institute of Chemistry, Academia Sinica, Taiwan. For more information about this article, please see pp 9–17 in this issue.