Multi-active photoconductive insulating elements exhibiting very

Details Multi-active photoconductive insulating elements exhibiting very Multi-active photoconductive insulating elements exhibiting very

1985-08-05

1986-10-21

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making radiation-sensitive product

430132, G03G 506, G03G 514

Patent

active

046185607

ABSTRACT:
Multi-active photoconductive insulating elements which exhibit very high electrophotographic speed and panchromatic sensitivity, and whose manufacture can be effectively controlled to provide an electrical contrast ranging from a very low to a very high level, are comprised of a charge-generation layer and a charge-transport layer in electrical contact therewith and contain, as the charge-generating agent within the charge-generation layer, certain crystalline forms of N,N'-bis(2-phenethyl)perylene-3,4:9,10-bis(dicarboximide) characterized by particular spectral absorption and X-ray diffraction characteristics. The charge-generation layer is capable, upon exposure to activating radiation, of highly effective generation and injection of charge carriers and the charge-transport layer, which is comprised of an organic composition containing an organic photoconductive material, is capable of accepting and transporting the injected charge carriers to thereby form a highly advantageous multi-active photoconductive insulating element.

REFERENCES:
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patent: 3904407 (1975-09-01), Regensburger et al.
patent: 3972717 (1976-08-01), Wiedemann
patent: 4410615 (1983-10-01), Goto et al.
patent: 4419427 (1983-12-01), Graser et al.
patent: 4429029 (1984-01-01), Hoffmann et al.
patent: 4514482 (1985-04-01), Loutfy et al.
patent: 4517270 (1985-05-01), Graser et al.
Fritz Graser and Erich Haedicke, "Crystal Structure and Color of Perylene-3,4:9,10-bis(dicarboximide) Pigments", Liebig's Annalen Chem., pp. 1994-2011, 1980.

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