Single Isomer of Indene-C70 Bisadduct—Isolation and Performance in Bulk Heterojunction Solar Cells

• DOI: 10.1021/cm404054z
• Publication Date: 2014-02-13T13:25:06Z
• Authors: Wallace W. H. Wong; Jegadesan Subbiah; Jonathan M. White; Helga Seyler; Bolong Zhang; David J. Jones; Andrew B. Holmes
• Keywords: 540; 530; 01 natural sciences; 7. Clean energy; 0104 chemical sciences

Indene-C70 bisadduct (IC70BA) is a high performance electron acceptor material consisting of a mixture of regioisomers. A single isomer of the IC70BA was isolated by careful chromatographic separation. The structure of this isomer was confirmed by various analytical techniques including single crystal X-ray analysis. The isomer showed superior performance to other isomer mixtures of IC70BA in bulk heterojunction solar cells using poly(3-hexylthiophene) as the donor material.