PHOTOCONDUCTIVITY OF C-60-DOPED PHTHALOCYANINE COMPOSITES

The influence of the dopant C-60 on the photoconductivity of zinc phth alocyanine (ZnPc) was examined. Measurement of the photoconductive pro perties shows that C-60 doping leads to a remarkable enhancement of th e photosensitivity compared with the corresponding undoped materials. The X-ray powder diffraction pattern and IR spectrum suggest that the enhancement of photoconductivity may be due to a polymorphic transform ation and change in molecular interaction in the phthalocyanine compos ites, as well as the formation of an intermolecular complex through ch arge transfer interaction between C-60 and ZnPc.