Thin films of (BEDT-TTF)2Cu(NCS)2 are prepared by the electrochemical oxidation of BEDT-TTF at a large current density. The films are composed of numerous platelets, which are set on edge and loosely packed on the anodes. The X-ray diffraction suggests that the product contains both amorphous regions and κ-type and other crystals. The ESR and conductivity are discussed in terms of the presence of amorphous regions.
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