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-ethylen edioxy-diselenadithiafulvalene (BEDO-STF) and behenic acid. Physical proper ties of the present LB films are investigated by the measurements of surfac e pressure - area isotherms, X-ray diffraction, FT-IR, and room temperature conductivity. These results are compared with those of BEDO-STF and beheni c acid LB films. The layered structure for both LB films are very similar t o 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 proper ty and room temperature conductivity are observed. The in-plane structure i n a microscopic range may cause the differences.