Influence of the liquid crystal behaviour on the Langmuir and Langmuir-Blodgett film supramolecular architecture of an ionic liquid crystal

► A new luminescent ionic liquid crystal (Ipz-2) has been synthesised. ► Ipz-2 exhibits hexagonal columnar mesomorphism in bulk. ► Ipz-2 forms stable Langmuir films at the air-water interface. ► Langmuir-Blodgett (LB) films are obtained by the vertical dipping method. ► Spontaneous formation of large columnar structures in LB films is observed by AFM.