Inside Front Cover: Electronic Transport through Electron‐Doped Metal Phthalocyanine Materials (Adv. Mater. 3/2006)

Transport measurements for different electron‐doped metal–phthalocyanine (MPc) materials are reported by Morpurgo and co‐workers on p. 320. It is experimentally demonstrated that for these doped MPc materials, increasing the doping level results first in a metallic state and, subsequently, in the re‐entrance of an insulating state. The artist's impression on the inside cover shows an MPc film situated between two electrodes and exposed to a flux of alkali atoms in vacuum. The alkali atoms intercalate and donate electrons to the molecular material.