research report      name index      key word index      corresp.unit            Page in german      Imprint + Privacy Policy   

Third-party-funded project

Title:
Nanoscopic p-n-Interfaces from Perylene Bisimides and Oligo(phenylene vinylenes) Through Hierarchical Self-Organization

Project management at the University of Würzburg:

Participating scientists:

Abstract:

Crystalline and liquid crystalline perylene bisimides exhibit n-semiconducting properties, which result from the aggregation of the electron-poor p-conjugated systems. In this project, perylene bisimide receptors that are developed by us in the past years are combined with electron-rich p-semiconducting oligophenylene receptors through hydrogen-bonds, the latter receptors are developed by the TU Eindhoven (Prof. Meijer's group ). Supramolecular electron donor/electron acceptor systems created by this process undergo photoinduced charge separation. The increase of concentration and/or evaporation of the solvent causes aggregation of the p-systems which leads to nanoscopic supramolecular p-n-interfaces. On the accound of their large inner interfaces and advantageous absorption properties for sunlight, these aggregates are promising components for the application in solar cells.

Key words:
    Light-Harvesting p-n-Interfaces
    Solar Cells
    Organic Semiconductors
    Electron-Transfer
    Co-Self-Organization

Projekt period: from 11.2003 to 12.2006

Funding institution:
DFG ,Granting date: 12.11.2003

Publications: