Polycyclic aromatic hydrocarbons obtained by lateral core extension of mesogenic perylenes: absorption and optoelectronic properties

Chemistry. 2014 Sep 15;20(38):12026-31. doi: 10.1002/chem.201403287. Epub 2014 Aug 5.

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.

Keywords: absorption; density functional calculations; electroluminescence; perylenes; semiconductors.