Photoconductive element exhibiting persistent conductivity

Details Photoconductive element exhibiting persistent conductivity Photoconductive element exhibiting persistent conductivity

1975-10-08

1976-12-14

Klein, David

Gas separation: apparatus

Magnetic separating means

96 15, 252501, G03G 509

Patent

active

039973425

ABSTRACT:
A photoconductive element having at least two layers, namely a charge-generation layer and a charge transport layer, is disclosed. The charge-generation layer contains a finely divided co-crystalline complex of (i) at least one polymer having an alkylidene diarylene group in a recurring unit and (ii) at least one pyrylium-type dye salt. The charge transport layer contains an organic photoconductive charge transport material exhibiting both kinetic and thermodynamic stability. Either one or both of the charge-generation and charge-transport layers of the element also contains a protonic acid material. The resultant photoconductive element exhibits persistent conductivity.

REFERENCES:
patent: 3287113 (1966-11-01), Hoegl
patent: 3512966 (1970-05-01), Shattuck et al.
patent: 3615396 (1971-10-01), Gramza et al.
patent: 3615414 (1971-10-01), Light
patent: 3684502 (1972-08-01), Gramza et al.
patent: 3706554 (1972-12-01), Fox et al.

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