Chiral molecule-based hierarchical assembly into ferroelectric nanowires
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Organic chiral materials are promising for detecting circularly polarized light (CPL) with their optical activity without additional progress and their properties including flexibility, solution-processability. The typical method to induce chirality, chirality transfer needs chiral additives like limonene to induce chirality in ∏-conjugated systems which can lead into the supramolecular helical structure by self-assembly. However, limonene is known for its high boiling point, complicating process which may be the result in low CD signals or CPL responsivity. Herein, we designed a new monomer for a self-assembled hierarchical helical nanowire of which the chirality is introduced in the hydrophilic side chain. It is confirmed that the chiral monomer improved previously mentioned problems and also has an advantage in water-soluble property derived from the hydrophilic side chain. These improved chiral properties may be useful in a variety of device applications.