Cover Picture: Controlling the Thickness of the Surface Oxide Layer on Cu Nanoparticles for the Fabrication of Conductive Structures by Ink-Jet Printing (Adv. Funct. Mater. 5/2008)

With the aim of preparing a high‐performance conductive ink, the surface oxide layer on Cu nanoparticles synthesized in ambient atmosphere is minimized by adjusting the molecular weight of poly(N‐vinylpyrrolidone) capping molecules. On p. 679, Joohoo Moon andco‐workers demonstrate that by minimizing the thickness of the surface oxide layer, Cu granular films with good conductivity on a plastic substrate can be obtained by sintering nanoparticle assembles.