US4013463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoreceptor fabrication utilizing AC ion plating
Assignee: Individual
•
Filing: 1975-08-15
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Granted: 1977-03-22
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Expires: 1995-08-15
Abstract
Abstract A durable photoreceptor having improved flexibility comprising a metal- or metal-coated flexible substrate and an inorganic photoconductor layer in charge blocking contact, the photoreceptor being obtained by initially bombarding the metal substrate, as an electrode, with both negative and positive ions of a non-metallic gas of low ionization potential under AC glow discharge in the presence of oxygen; and exposing the resulting oxidized substrate to a vapor cloud of inorganic ambipolar photoconductive material consisting essentially of positively and negatively charged and uncharged photoconductive material in a low frequency AC electrical field, utilizing the substrate as one electrode, a source of said vapor cloud of photoconductive material or adjacent structure as the other electrode, the latter functional step being effected in combination with at least part of the initial bombardment step.
Inventors
- 👤 Lewis B. Leder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:48
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/32; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207; G03G5/10; G03G5/102
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
139 words
A method for obtaining flexible photoreceptors having improved durability and adhesion between components thereof comprising a flexible metal- or metal-coated substrate and an inorganic ambipolar ionizable photoconductive layer in charge-blocking contact with the substrate, comprising initially bombarding the substrate as an electrode under DC or low frequency AC glow discharge under vacuum with ions of an inert non-metallic gas in the presence of available added or residual atmosphere oxygen; and exposing the resulting oxidized substrate as an electrode to a vapor cloud from a donor source comprising positive and negative ions of desired ambipolar photoconductive material, ions of the inert non-metallic gas comprising the glow discharge, and uncharged vaporized photoconductor material; in or adjacent to a low frequency AC electrical field utilizing the donor source of the vapor cloud of photoconductive material or adjacent structure as an additional electrode.
Claim 2
Independent Claim
139 words
A method for obtaining flexible photoreceptors having improved durability and adhesion between components thereof comprising a flexible metal- or metal-coated substrate and an inorganic ambipolar ionizable photoconductive layer in charge-blocking contact with the substrate, comprising initially bombarding the substrate as an electrode under DC or low frequency AC glow discharge under vacuum with ions of an inert non-metallic gas in the presence of available added or residual atmosphere oxygen; and exposing the resulting oxidized substrate as an electrode to a vapor cloud from a donor source comprising positive and negative ions of desired ambipolar photoconductive material, ions of the inert non-metallic gas comprising the glow discharge, and uncharged vaporized photoconductor material; in or adjacent to a low frequency AC electrical field utilizing the donor source of the vapor cloud of photoconductive material or adjacent structure as an additional electrode.
Claim 3
Dependent Claim
30 words
The method of claim 1 wherein the exposure of the oxidized substrate to the vapor cloud is effected in conjunction with at least part of the initial substrate bombardment step.
Claim 4
Dependent Claim
41 words
The method of claim 1 wherein initial ion bombardment for oxidation of the substrate is effected at a pressure up to about 30 microns (mercury), the amount of oxygen present being not less than about 1% by volume of available gases.
Claim 5
Dependent Claim
58 words
The method of claim 1 wherein exposure of the oxidized substrate to a vapor cloud of photoconductive material is effected by heating the photoconductive material to an intermediate temperature between room temperature and the maximum photoconductive evaporation, temperature utilizing the substrate as one electrode and the donor source as another electrode under a low frequency AC glow discharge.
Claim 6
Dependent Claim
28 words
The method of claim 3 wherein the initial positive ion bombardment of the substrate is effected under an oxygen-containing atmosphere at about 5 - 30 micons (mercury) pressure.
Claim 7
Dependent Claim
29 words
The method of claim 4 wherein the photoconductive material is heated by electron bombardment, by ion bombardment or by resistance heating means during photoconductor deposition unto the oxidized substrate.
Claim 8
Dependent Claim
38 words
The method of claim 1 wherein the substrate is a charge conductive metal belt and the inorganic ionizable ambipolar photoconductive layer comprises selenium and alloys thereof with one or more of tellurium antimony, bismuth, arsenic and a halogen.
Claim 9
Dependent Claim
26 words
The method of claim 1 wherein the substrate is a charge conductive metal belt and the inorganic ionizable photoconductive layer comprises selenium or a selenium-arsenic-halogen alloy.
Claim 10
Dependent Claim
32 words
The method of claim 1 wherein photoconductive material is subsequently applied by vapor deposition after depositing photoconductive material onto the substrate under glow discharge to a thickness of at least about 0.01μ.
Claim 11
Dependent Claim
12 words
The method of claim 7 wherein the substrate is a nickel belt.
Claim 12
Dependent Claim
12 words
The method of claim 8 wherein the substrate is a nickel belt.
Claim 13
Dependent Claim
12 words
The method of claim 9 wherein the substrate is a nickel belt.
Claim 14
Dependent Claim
12 words
The method of claim 7 wherein the substrate is a brass belt.
Claim 15
Dependent Claim
12 words
The method of claim 8 wherein the substrate is a brass belt.
Claim 16
Dependent Claim
12 words
The method of claim 9 wherein the substrate is a brass belt.
Claim 17
Dependent Claim
36 words
A flexible photoreceptor comprising a metal- or metal-coated substrate and a photoconductive layer of an ionizable inorganic ambipolar photoconductive material in charge blocking contact with the substrate, obtained in accordance with the method of claim 1.
Claim 18
Dependent Claim
36 words
A flexible photoreceptor comprising a metal- or metal-coated substrate and a photoconductive layer of an ionizable inorganic ambipolar photoconductive material in charge blocking contact with the substrate, obtained in accordance with the method of claim 2.
Claim 19
Dependent Claim
36 words
A flexible photoreceptor comprising a metal- or metal-coated substrate and a photoconductive layer of an ionizable inorganic ambipolar photoconductive material in charge blocking contact with the substrate, obtained in accordance with the method of claim 12.
Claim 20
Dependent Claim
36 words
A flexible photoreceptor comprising a metal- or metal-coated substrate and a photoconductive layer of an ionizable inorganic ambipolar photoconductive material in charge blocking contact with the substrate, obtained in accordance with the method of claim 15.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |