Résumé
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.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 916-922 |
| Nombre de pages | 7 |
| journal | Solar Energy Materials and Solar Cells |
| Volume | 90 |
| Numéro de publication | 7-8 |
| Les DOIs | |
| état | Publié - 5 mai 2006 |
| Modification externe | Oui |
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