Band Gap Control in Conjugated Oligomers via Lewis Acids

摘要

New approaches to the design of organic chromophores are of interest for a variety of optical and optoelectronic technologies. In the area of solar energy conversion, it is essential that the absorption of the light-harvesting material match the spectral characteristics of the sun. This condition applies equally to dye-sensitized cells and devices based on organic semiconducting materials. Some of the best-performing bulk heterojunction "plastic" solar cells are fabricated with conjugated polymers that have backbones comprising alternating donor/acceptor (D/A) comonomer units.