We fabricated nanowires of a conjugated oligomer/polymer. The supramolecular assemblies oforganic semiconductors  were  prepared by co-crystallization with 2-bromobenzaldehyde (2BBA) via halogen bonding between boromide in 2BBA and electron-donor groups in organic semiconductors and chalcogen bonding between aldehyde in 2BBA and chalcogen atoms in the organic semiconductors. It was found that 2BBA could be incorporated into the conjugated planes of the semiconductors via both halogen and chalcogen bondings, thereby enlarging π-π stacking area between the conjugated planes. As a result, the driving force for one dimensional growth of the supramolecular assemblies were significantly enhanced.  Organic field effect transistors employing nanowires achieved 30 times higher charge transfer mobility than that of transistors based on thin films.<br/><br/>

Conjugated oligomer/polymer nanowires assembled via both halogen and chalcogen bondings

2019 Spring National Meeting

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