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US 4,728,593 AGranted
Photoconductive polyimide-electron donor charge transfer complexes
AssigneeE. I. Du Pont de Nemours and Company
InventorsSteven C. Freilich, Stephen Mazur
Life of this patent
Estimating the term…
Abstract
Polyimide-electron donor charge transfer complexes, supported or unsupported, as photoconductive elements characterized by photoconductivities in excess of the sum of the individual photoconductivities of the polyimide and electron donor components.
Claims22
A photoconductive element comprising a polyimide-electron donor charge transfer complex, the electron donor having an ionization potential of 6 to 9 electron volts and no photoconductivity in the visible light region, the element characterized in that it:
- (i) is photoconductive in the visible light region, and
- (ii) has photoconductivity in excess of the sum of the photoconductivities of the polyimide and donor, individually.
Dependencies are inferred from the claim text.