Abstract
Electrical and photoelectrical properties of polymeric composites containing heteropolynuclear Zn(II)/Cr(III) or Co(II)/Cr(III) complexes were studied. Under excitation of d-d transitions of Cr3+, the internal photoelectric effect in composite films under study is stronger for the zinc complex than for the cobalt complex. The photoconductivity increases as the C60 acceptor is introduced into composites. The electroconductivity and photoconductivity activation energy is >1 eV and depends weakly on the external electric field. The photocurrent decreases under the external magnetic field, which occurs to a greater extent for composites containing the Co(II)/Cr(III) complex. The differences in the photoconductivity are associated with different magnetic properties of metal centers in heteropolynuclear complexes.
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