[EN] ELECTROACTIVE COMPOUND AND COMPOSITION AND ELECTRONIC DEVICE MADE WITH THE COMPOSITION [FR] COMPOSÉ ÉLECTROACTIF ET COMPOSITION ET DISPOSITIF ÉLECTRONIQUE FABRIQUÉ AVEC LA COMPOSITION
N-type conjugated materials based on 2-vinyl-4,5-dicyanoimidazoles and their use in organic photovoltaics
申请人:Sellinger Alan
公开号:US20090032106A1
公开(公告)日:2009-02-05
There is provided novel n-type conjugated compounds based on 2-vinyl-4,5-dicyanoimidazole moieties conjugated via the vinyl group to an aromatic moiety. Also provided are thin films and photovoltaics comprising the novel compounds, as well as methods of synthesizing the compounds.
The present invention relates to polymers which contain novel structural units of the formula (1). The inventive materials exhibit better solubility and improved efficiency when used in a polymeric organic light-emitting diode.
Electron-Accepting Conjugated Materials Based on 2-Vinyl-4,5-dicyanoimidazoles for Application in Organic Electronics
作者:Richard Y. C. Shin、Prashant Sonar、Pei Sann Siew、Zhi-Kuan Chen、Alan Sellinger
DOI:10.1021/jo802720m
日期:2009.5.1
We report the Heck coupling of 2-vinyl-4,5-dicyanoimidazole (vinazene) with selected di- and trihalo aromatics in an effort to prepare linear and branched electron-accepting conjugated materials for application in organic electronics. By selecting the suitable halo-aromatic moiety, it is possible to tune the HOMO-LUMO energy levels, absorption, and emission properties for a specific application. In this regard, materials with strong photoluminescence from blue -> green -> red are reported that may have potential application in organic light-emitting diodes (OLEDs). Furthermore, derivatives with strong absorption in the-visible spectrum, coupled with favorable HOMO-LUMO levels, have been used to prepare promising organic photovoltaic devices (OPVs) when combined with commercially available semiconducting donor polymers.
ELEKTROLUMINESZIERENDE POLYMERE UND DEREN VERWENDUNG