Azacyanine spectra sensitized organic photoconductive compositions and elements

• US 4,334,001 A
• Filed: 12/08/1980
• Issued: 06/08/1982
• Est. Priority Date: 12/07/1979
• Status: Expired due to Term

• Current Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Horie, Seiji, Sato, Hideo
• Primary Examiner(s): Welsh, John D.
• Application Number:
  US06/214,157
• Time in Patent Office: 547 Days
• Field of Search: 430/83, 430/81, 430/82, 430/581, 430/582
• US Class Current: 430/83
• CPC Class Codes: G03G 5/0661 in different ring systems, each system containing at least one hetero ring

Abstract

A photoconductive composition comprising a photoconductive substance and at least one spectral sensitizer selected from azacyanines represented by formula (I), (II), (III), (IV) or (V) ##STR1## and a photosensitive member containing such a spectral sensitizer.

Claims

1. A photoconductive composition comprising an organic photoconductive substance and at least one spectral sensitizer selected from azacyanines represented by formula (I), (II), (III), (IV), or (V) ##STR40## wherein A, together with the group ##STR41## is a group represented by formula (1), (2), (3), or (4) ##STR42## B, together with the group ##STR43## is a group represented by formula (5), (6), (7), (8), (9), or (10) ##STR44## wherein Z is --O--, --Se-- or --S--;

Q, together with the group ##STR45## is a group represented by formula (11), (12), (13) or (14) ##STR46## D, together with the group ##STR47## is a group represented by formula (15) or (16) ##STR48## E, together with the group ##STR49## is a group represented by formula (17) or (18) ##STR50## F, together with the group ##STR51## is a group represented by formula (19), (20), (21), (22), or (23) ##STR52## G, together with the group ##STR53## is a group represented by formula (24), (25), (26), or (27) ##STR54## and R₁, R₂, and R₆ are each an alkyl group, and R₃, R₄, and R₅ are each hydrogen, an alkyl group, an alkoxy group, or a substituted alkyl group.

2. A spectral sensitizer as in claim 1, wherein the alkyl group represented by R₁, R₂, or R₆ is an alkyl group containing from 1 to 12 carbon atoms, and the alkyl group represented by R₃, R₄, or R₅ is an alkyl group containing from 1 to 12 carbon atoms, an alkoxy group containing from 1 to 12 carbon atoms, or a substituted alkyl group containing from 1 to 18 carbon atoms.

3. A spectral sensitizer as in claim 1, wherein the substituent is an alkoxyalkyl, an aryloxyalkyl, a hydroxyalkyl, an aralkyl, a cyanoalkyl, or a haloalkyl group.

4. A photoconductive composition as in claim 1, 2, or 3, wherein the organic photoconductive substance is polyvinylcarbazole or its derivative, an aromatic amino derivative, a polyarylalkane derivative, a heterocyclic ring-containing compound, a condensed ring-containing compound, a double bond-containing compound, a condensation product of aldehyde and an aromatic amine, a reaction product of a secondary aromatic amine and an aromatic halide, an aromatic amine-containing condensation product, a vinyl polymer or an organic photoconductive oligomer.

5. A photoconductive composition as in claim 1, 2, or 3, wherein the spectral sensitizer is present in an amount of from 0.005 to 10 parts by weight per about 1 to 80 parts by weight of the organic photoconductive substance.

6. A photoconductive composition as in claim 1, 2, or 3 including a binder selected from the group consisting of a film-forming photoconductive compound and an insulative film-forming compound.

7. A photosensitive member comprising a melt-extruded film of a photoconductive composition comprising an organic photoconductive substance and at least one spectral sensitizer selected from azacyanines represented by formula (I), (II), (III), (IV), or (V) ##STR55## wherein A, together with the group ##STR56## is a group represented by formula (1), (2), (3) or (4) ##STR57## B, together with the group ##STR58## is a group represented by formula (5), (6), (7), (8), (9), or (10) ##STR59## wherein Z is --O--, --Se-- or --S--;

Q, together with the group ##STR60## is a group represented by formula (11), (12), (13), or (14) ##STR61## D, together with the group ##STR62## is a group represented by formula (15) or (16) ##STR63## E, together with the group ##STR64## is a group represented by formula (17) or (18) ##STR65## F, together with the group ##STR66## is a group represented by formula (19), (20), (21), (22), or (23) ##STR67## G, together with the group ##STR68## is a group represented by formula (24), (25), (26), or (27) ##STR69## and R₁, R₂, and R₆ are each an alkyl group, and R₃, R₄, and R₅ are each hydrogen, an alkyl group, an alkoxy group, or a substituted alkyl group.

8. A photosensitive member as in claim 7, wherein said member is a self-supporting film of said photoconductive composition.

9. A photosensitive member as in claim 7, wherein the film of the photoconductive composition is coated on an electrically conductive support.