Surface-conductive polymer composites based on (BEDT-TTF)2Cu(SCN)2

Methods of preparation and studies of the properties of the first polymer composites using (BEDT-TTF)2Cu(SCN)2 (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene) as a conductive phase are reported. It is shown that a network of a conductive (BEDT-TTF)2Cu (SCN)2 salt can be obtained. However, besides superconducting κ-(BEDT-TTF)2Cu(SCN)2 at least two other salts which comprise Cu(SCN)2Poststeggerd− are known: α-phase and (BEDT-TTF)Cu2(SCN)3. Scanning electron microscopy (SEM) micrographs and X-ray diffractograms have shown that, although by chemical oxidation the κ-phase is usually obtained, in the composite films the additive crystallization leads mostly to α-(BEDT-TTF)2Cu(SCN)2.