title: Polycyclic aromatic hydrocarbons obtained by lateral core extension of mesogenic perylenes: absorption and optoelectronic properties.
abstract: Bilaterally extended perylenes were synthesized, characterized, and used to create organic light-emitting devices. A detailed investigation of the electronic and optical properties, and a comparison of perylene derivatives and compounds with unilaterally and bilaterally extended aromatic cores, reveal unexpected changes of the absorption spectrum, which are in agreement with simulations based on DFT.
authors.affiliation: Center for Optoelectronics and Photonics Paderborn, Universität Paderborn, Warburger Strasse 100, 33098 Paderborn (Germany); Centre de Recherche Paul Pascal (CRPP), CNRS, Universite Bordeaux, 33600 Pessac (France).
authors.forename: Joachim
authors.initials: J
authors.lastname: Vollbrecht
authors.forename: Harald
authors.initials: H
authors.lastname: Bock
authors.forename: Christian
authors.initials: C
authors.lastname: Wiebeler
authors.forename: Stefan
authors.initials: S
authors.lastname: Schumacher
authors.forename: Heinz
authors.initials: H
authors.lastname: Kitzerow
keywords: absorption; density functional calculations; electroluminescence; perylenes; semiconductors