New conducting thin films derived from M(dimt)2 salts (M=Ni(II), Pd(II)) by using poly counter cations

Two kinds of new M(dmit)2 salts (M=Ni and Pd, (dmit=1,3-dithole-2-thione-4,5-dithiolate)) containing poly(4-vinyl-N-octanylpyridinium) (PVOP) as counter cations were synthesized. Semiconducting thin films derived from these salts were prepared by electrochemical deposition method. The Ni(dmit)2 film shows an extremely smooth and uniform surface. The film-forming property of the Ni(dmit)2 salt has been improved significantly by using PVOP as counter cation.