Details

Autor(en) / Beteiligte

• Mei, Jianguo
• Graham, Kenneth R
• Stalder, Romain
• Reynolds, John R

Titel

Synthesis of Isoindigo-Based Oligothiophenes for Molecular Bulk Heterojunction Solar Cells

Ist Teil von

• Organic letters, 2010-02, Vol.12 (4), p.660-663

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2010

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Isoindigo, as a new electron acceptor unit for organic electronic materials, was integrated into two low-energy gap oligothiophenes. Optical and electrochemical studies of the newly synthesized oligomers demonstrate broad absorption through the visible spectrum, along with appropriate energy levels, as desired for light harvesting donors for organic solar cells when blended with [6,6]-phenyl-C61-butyric acid methyl ester (PC60BM). Molecular heterojunction solar cells were fabricated using these oligomers and exhibit a power conversion efficiency up to 1.76% with a V oc of 0.74 V, I sc of 6.3 mA/cm2 and fill factor of 0.38.