Author/Authors :
Troshin، نويسنده , , Pavel A. and Ponomarenko، نويسنده , , Sergei A. and Luponosov، نويسنده , , Yuriy N. and Khakina، نويسنده , , Ekaterina A. and Egginger، نويسنده , , Martin and Meyer-Friedrichsen، نويسنده , , Timo and Elschner، نويسنده , , Andreas and Peregudova، نويسنده , , Svetlana M. and Buzin، نويسنده , , Mikhail I. and Razumov، نويسنده , , Vladimir F. and Serdar Sa، نويسنده ,
Abstract :
The preparation and characterization of novel electron donor compounds with two (D1) and four (D2) quaterthiophene-containing arms attached to the flexible carbosilane–siloxane core are described. These materials were investigated in organic field effect transistors and photovoltaic cells. A power conversion efficiency of ∼0.9% obtained for D1:[70]PCBM blends is one of the highest values achieved up to now for solution-processible small molecular bulk heterojunction solar cells with large band-gap oligothiophene-based donor materials comprising no other chromophore units.
Keywords :
Quaterthiophene , solubility , organic semiconductors , morphology , solar cells
