Title

Self-assembling discotic liquid crystal porphyrin into more controllable ordered nanostructure mediated by fluorophobic effect

Publication Title

Liquid Crystals

Publication Date

2009

Document Type

Article

DOI

10.1080/02678290902846611

Keywords

partially perfluoroalkylated liquid crystal porphyrin, self-assembly, ordered nanostructure, uniform alignment, defect-free homeotropically aligned porphyrin thin films

Disciplines

Physics

Abstract

The novel nanoscale discotic liquid crystal porphyrin with partial chain perfluorination, which has the same basic structure as the best photoreceptor in nature (chlorophyll), shows an exceptionally enhanced tendency to self-assemble into ordered nanostructure. Defect-free homeotropically aligned fluorinated porphyrin thin films were, for the first time, fabricated and characterised. The ability to self-assemble large pi-conjugated discotic molecules into highly ordered nanostructure via partial chain perfluorination provides new insight for the bottom-up nanofabrication of molecular devices. The controllable ordered porphyrin nanostructure with directed molecular arrangement holds great promise for use in high-performance electronic devices.