Author/Authors :
Rauscher، نويسنده , , H and Jung، نويسنده , , T.A and Lin، نويسنده , , J.-L and Kirakosian، نويسنده , , A and Himpsel، نويسنده , , F.J and Rohr، نويسنده , , U and Müllen، نويسنده , , K، نويسنده ,
Abstract :
We have integrated one-dimensional organic structures into semiconductor/insulator nanostructures by controlled self-assembly. Stepped Si(111) surfaces with self-organized CaF1/CaF2 stripe patterns serve as mask for selective adsorption of 3,10-di(propyl)perylene. These molecules adsorb preferentially on CaF1 nanostripes, rather than on CaF2. This property is used to fabricate large assemblies of parallel, equidistant stripes 1–15 nm wide. We discuss the selectivity in terms of a mechanism where the HOMO and LUMO of the molecule interact with the valence band and conduction band of CaF1 and CaF2.
