Supramolecular Organization and Photovoltaics of Triangle-shaped Discotic Graphenes with Swallow-tailed Alkyl Substituents.

Feng, Xinliang; Liu, Miaoyin; Pisula, Wojciech; Takase, Masayoshi; Li, Jiaoli; Müllen, Klaus · Adv Mater · 2008

basic_science · Level V

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Abstract

Two novel triangle-shaped discotic graphenes with swallow-like alkyl tails are synthesized; these discotic graphenes allow facile purification, control over thermotropic properties, and solution fabrication into efficient photovoltaic devices. The unique molecular design results in an extremely broad liquid-crystalline range and the ability to self-heal at low processing temperatures, which improves the performance of photovoltaic cells.