Preparation of a new conducting langmuir-blodgett films based on oxygen substituted ttf derivative

A new conducting Langmuir-Blodgett (LB) film is fabricated from bis-ethylenedioxy-diselenadithiafulvalene (BEDO-STF) and behenic acid. Physical properties of the present LB films are investigated by the measurements of surface pressure — area isotherms, X-ray diffraction, FT-IR, and room temperature conductivity. These results are compared with those of BEDO-TTF and behenic acid LB films. The layered structure for both LB films are very similar to each other. The similarity is suspected to be brought about by the strong interaction between these oxygen substituted TTF donors and RCOO− part of behenic acid. On the other hand, significant differences in infrared property and room temperature conductivity are observed. The in-plane structure in a microscopic range may cause the differences.