title: The effect of heteroatom conformation on optoelectronic properties of cyclopentadithiophene derivatives.
abstract: Cyclopentadithiophene (CPDT) derivatives with different heteroatom conformations have been synthesized. The optical, electrochemical and charge transport properties of these molecules are reported. The CPDT-anti-ketone not only exhibits the lowest optical and electronic bandgaps, but also exhibits reasonable hole mobility, 3 × 10(-3) cm(2) (V s)(-1). Changing the carbonyl conformation to the syn position or incorporating the imine functionality results in a blue-shift in the lower energy band of the absorption spectrum indicative of the increased bandgaps.
authors.affiliation: Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA. thai@chem.umass.edu.
authors.forename: Sompit
authors.initials: S
authors.lastname: Wanwong
authors.forename: Ambata
authors.initials: A
authors.lastname: Poe
authors.forename: Ganapathy
authors.initials: G
authors.lastname: Balaji
authors.forename: S
authors.initials: S
authors.lastname: Thayumanavan