| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 81289 | Solar Energy Materials and Solar Cells | 2006 | 7 Pages |
Abstract
We report here on the synthesis and properties of a monosubstituted quaterthiophene derivative asymmetrically functionalized by an electron-withdrawing group using the palladium-catalyzed Stille's coupling reaction. The UV–vis absorption spectrum evidences a strong intramolecular charge transfer transition. Thus oligothiophenes act as electron donors and substituent group as acceptor. The diodes in which monosubstituted quaterthiophenes behave as organic semiconductors, exhibit a rectifying behavior. Photovoltaic measurements show moderate power conversion efficiency.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Abderrahim Yassar, Christine Videlot, Abdelhafid. Jaafari,