Effect of Fullerene Volume Fraction on Two-Dimensional Crystal-Constructed Supramolecular Liquid Crystals

摘要

The volume fraction plays an important role in phase segregated soft matters. We demonstrate here that at high fullerene volume fraction in soft chain-tethered-fullerene dyads, different two-dimensional (2D) crystal-constructed smectic-like lamella liquid crystalline (LC) phases can be formed with triple-layer (S-T phase) or quadruple-layer (S-Q phase) stacking of fullerenes in 2D crystals. The combination of 2D crystal and LC properties in one system affords these fullerene dyads controlled electron mobility in the range of 10(-5)-10(-3) cm(2) V-1 s(-1) at room temperature (S-T phase), by regulating the insulated soft layer thickness between 2D crystals via the manipulation of fullerene volume fraction.