Ambipolar charge injection and transport in a single pentacene monolayer island

Thomas Heim (1) , Kamal Lmimouni (1) , Dominique Vuillaume (1)

1 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520

Electrons and holes are locally injected in a single pentacene monolayer island. The two-dimensional distribution and concentration of the injected carriers are measured by electrical force microscopy. In crystalline monolayer islands, both carriers are delocalized over the whole island. On disordered monolayer, carriers stay localized at their injection point. These results provide insight into the electronic properties, at the nanometer scale, of organic monolayers governing performances of organic transistors and molecular devices.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Thomas Heim, Kamal Lmimouni, Dominique Vuillaume. Ambipolar charge injection and transport in a single pentacene monolayer island. 2004. ⟨hal-00002914⟩