Lateral molecular space control of LB films by introducing spacer molecules

Lattice constant of LB films were controlled by introducing "Spacer Molecules" such as pyrrole or fullerene into arachidic acid LB films. The appropriate buffer layers which satisfy lattice matching between the different monolayers were successfully formed. The observation using an atomic force microscope clearly showed that the LB films are highly ordered in the lateral direction even after introducing spacer molecules. The spatially controlled LB films were also found to be applied for a novel gas sensor with a molecular size recognition.