Premium
Highly Emissive Hexa‐ peri ‐benzocoronene‐fluoranthene Hybrid as Easily Processable and Stable OLED Material
Author(s) -
Krappe Alexander R.,
Mayer Jacob C.,
Zhang Wuai,
Filla Lina M.,
Ligorio Giovanni,
Hermerschmidt Felix,
Eitelhuber Larissa S.,
Güttler Arne,
Weber Manuela,
Paulus Beate,
ReschGenger Ute,
ListKratochvil Emil J. W.,
Eigler Siegfried
Publication year - 2025
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.202500742
Abstract We report the synthesis of a fluorescent polycyclic aromatic hydrocarbon dye with a “symmetry‐broken” core, derived from the related hexa‐ peri ‐benzocoronene (HBC) core with a fluoranthene subunit. The fluorophore is composed of a pure carbon skeleton without heteroatoms and exhibits remarkable photoluminescence properties with a photoluminescence quantum yield (PLQY) of up to 67% in toluene, exceeding that of the parent HBC by a factor of 30. The single crystal X‐ray structure reveals the distorted polycyclic aromatic hydrocarbon structure, which is responsible for the optoelectronic properties, as supported by density functional theory calculations. We show that the new fluorescent dye can be readily used for the fabrication of organic light‐emitting diodes (OLED) without extensive optimization, whereby solubility in a variety of solvents and successful film formation are decisive.