PURPOSE: To obtain a novel ultrathin film useful as solar battery, photodiode, etc., having excellent photoelectric transfer function and photoconductivity, by accumulating a complex monomolecular film consisting of an amphipathic benzene conjugated compound and a polyanion having absorption at the visible part.
CONSTITUTION: A complex monomolecular film consisting of (A) an amphipathic benzene conjugated compound [preferable example; compound shown by formula I (X is azobenzene, biphenyl or diphenylazomethyl; R1 is alkyl; R2 is tetraalkylammonium; R3 and R4 are ester bond or ether bond to link R1 and R2 to X)] and (B) a polyanion [e.g. compound shown by formula II (two or more of R5WR8 are carboxyl or sulfone; M is Cu, Co or Ni)] is accumulated by Langmuir-Blodgett method to give an extremely thin film.
MIURA KONOE
YONEYAMA MITSURU
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