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Polycyclic Aromatic Hydrocarbons Obtained by Lateral Core Extension of Mesogenic Perylenes: Absorption and Optoelectronic Properties
Author(s) -
Vollbrecht Joachim,
Bock Harald,
Wiebeler Christian,
Schumacher Stefan,
Kitzerow Heinz
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201403287
Subject(s) - perylene , mesogen , absorption (acoustics) , photochemistry , materials science , core (optical fiber) , absorption spectroscopy , optoelectronics , chemistry , molecule , organic chemistry , optics , physics , liquid crystal , liquid crystalline , composite material
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.