Synthesis of 2,5,8,11,14,17-Hexafluoro-hexa-peri- hexabenzocoronene for n-Type Organic Field-Effect Transistors
摘要:
A fluorine-substituted hexa-peri-hexabenzocoronene was synthesized as a thermostable active material for n-type semiconductors. The LUMO and HOMO energy levels, estimated by UV-vis and photoelectron spectroscopy, were lower by 0.5 eV than those of hexa-peri-hexabenzocoronene. A field-effect transistor fabricated by vacuum sublimation showed n-type performance with a field-effect mobility of 1.6 x 10(-2) cm(2)/Vs and an on/off ratio of 10(4). The electron-withdrawing effect of the fluorine substituents changed the polarity from p-type to n-type.
The present invention describes compounds having an acceptor group and a donor group, especially for use in electronic devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.
[DE] VERBINDUNGEN MIT EINER AKZEPTOR- UND EINER DONORGRUPPE<br/>[EN] COMPOUNDS WITH AN ACCEPTOR AND A DONOR GROUP<br/>[FR] COMPOSÉS POURVUS D'UN GROUPE ACCEPTEUR ET D'UN GROUPE DONNEUR
申请人:MERCK PATENT GMBH
公开号:WO2018087346A1
公开(公告)日:2018-05-17
Die vorliegende Erfindung beschreibt Verbindungen mit einer Akzeptor- und einer Donorgruppe,insbesondere zur Verwendung in elektronischen Vorrichtungen. Die Erfindung betrifft ferner ein Verfahren zur Herstellung der erfindungsgemäßen Verbindungen sowie elektronische Vorrichtungen, enthaltend diese.