Cover Picture: Self‐Assembled Metal Oxide Bilayer Films with “Single‐Crystalline” Overlayer Mesopore Structure (Adv. Mater. 8/2007)

Mesoporous films with biaxial, “single‐crystalline” arrangements of spherical pores are obtained by “evaporation‐induced self‐assembly” (EISA) in work reported by Torsten Brezesinski, Markus Antonietti, and Bernd Smarsly on p. 1074. The films are dip‐coated onto a sublayer with sufficiently different surface tension and a specific nanoscale periodicity. Low adhesion to the sublayer surface results in a relatively small number of nucleation sites and a uniform orientation of the evolving mesostructure in the toplayer.