US4758487A
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US
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Electrostatographic imaging members with amorphous boron
Assignee: Xerox Corp
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Filing: 1986-11-24
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Granted: 1988-07-19
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Expires: 2006-11-24
Abstract
Abstract Disclosed is a photoresponsive imaging member comprised of certain hydrogenated, or halogenated amorphous boron.
Inventors
- 👤 Milan Stolka
- 👤 Damodar M. Pai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:18
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
44 words
A photoresponsive imaging member comprised of a single photogenerating layer of hydrogenated amorphous boron with a band gap of from about 1 to about 3 electron volts, or halogenated amorphous boron with a band gap of from about 1 to about 3 electron volts.
Claim 2
Dependent Claim
44 words
A photoresponsive imaging member comprised of a single photogenerating layer of hydrogenated amorphous boron with a band gap of from about 1 to about 3 electron volts, or halogenated amorphous boron with a band gap of from about 1 to about 3 electron volts.
Claim 3
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 1 wherein the halogenated amorphous boron has a band gap of from about 1 to about 3 electron volts.
Claim 4
Dependent Claim
23 words
A photoresponsive imaging member in accordance with claim 1 wherein there is selected a mixture of hydrogenated amorphous boron and halogenated amorphous boron.
Claim 5
Dependent Claim
15 words
A photoresponsive imaging member in accordance with claim 1 further including therein a supporting substrate.
Claim 6
Dependent Claim
37 words
A photoresponsive imaging member in accordance with claim 4 further including therein a supporting substrate and in contact therewith hydrogenated and/or halogenated amorphous boron with a band gap of from about 1 to about 3 electron volts.
Claim 7
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 5 wherein the hydrogenated amorphous boron has a band gap of from about 1.4 to about 3 electron volts.
Claim 8
Dependent Claim
15 words
A photoresponsive imaging member in accordance with claim 5 wherein the supporting substrate is aluminum.
Claim 9
Dependent Claim
40 words
A photoresponsive imaging member in accordance with claim 5 wherein the amorphous boron has a ratio of 80 percent by weight of single bonds linking the boron atoms, and 20 percent by weight of double bonds linking the boron atoms.
Claim 10
Dependent Claim
43 words
A photoresponsive imaging member comprised of a single photogenerating layer of a supporting substrate, amorphous boron selected from the group consisting of hydrogenated amorphous boron and halogenated amorphous boron each with a band gap of from about 1 to about 3 electron volts.
Claim 11
Dependent Claim
43 words
A photoresponsive imaging member comprised of a single photogenerating layer of a supporting substrate, amorphous boron selected from the group consisting of hydrogenated amorphous boron and halogenated amorphous boron each with a band gap of from about 1 to about 3 electron volts.
Claim 12
Dependent Claim
26 words
A photoresponsive imaging member in accordance with claim 9 wherein the amorphous boron is of a band gap of from 1 to about 3 electron volts.
Claim 13
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 9 wherein the overcoating layer is comprised of amorphous carbon.
Claim 14
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 9 wherein the overcoating is silicon nitride or silicon carbide.
Claim 15
Dependent Claim
64 words
A photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer of amorphous boron, and an overcoating layer wherein the amorphous boron is present in a transitional gradient with from about 10 atomic percent to about 30 atomic percent of hydrogen present in a direction from the supporting substrate to the interface situated between the amorphous boron photoconductive layer and the overcoating layer.
Claim 16
Dependent Claim
64 words
A photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer of amorphous boron, and an overcoating layer wherein the amorphous boron is present in a transitional gradient with from about 10 atomic percent to about 30 atomic percent of hydrogen present in a direction from the supporting substrate to the interface situated between the amorphous boron photoconductive layer and the overcoating layer.
Claim 17
Dependent Claim
26 words
A photoresponsive imaging member in accordance with claim 13 wherein the amorphous boron is of a band gap of from 1 to about 3 electron volts.
Claim 18
Dependent Claim
22 words
A photoresponsive imaging member in accordance with claim 13 wherein the overcoating is comprised of silicon nitride, silicon carbide, or amorphous carbon.
Claim 19
Dependent Claim
63 words
A photoresponsive imaging member comprised of a photogenerating hydrogenated amorphous boron layer with a band gap of from about 1 to about 3 electron volts, and in contact therewith a photogenerating layer of hydrogenated amorphous silicon wherein said layer is of a thickness of from about 5 to about 25 microns and contains from about 5 to about 30 atomic percent of hydrogen.
Claim 20
Dependent Claim
63 words
A photoresponsive imaging member comprised of a photogenerating hydrogenated amorphous boron layer with a band gap of from about 1 to about 3 electron volts, and in contact therewith a photogenerating layer of hydrogenated amorphous silicon wherein said layer is of a thickness of from about 5 to about 25 microns and contains from about 5 to about 30 atomic percent of hydrogen.
Claim 21
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 16 wherein there is further included therein a supporting substrate.
Claim 22
Dependent Claim
21 words
A photoresponsive imaging member in accordance with claim 16 wherein the amorphous boron has a band gap of 2 electron volts.
Claim 23
Dependent Claim
23 words
A photoresponsive imaging member in accordance with claim 16 wherein the photogenerating layer is comprised of an amorphous hydrogenated silicon and germanium alloy.
Claim 24
Dependent Claim
19 words
A photoresponsive imaging member in accordance with claim 16 wherein the photogenerating layer is doped with phosphorous or boron.
Claim 25
Dependent Claim
26 words
A photoresponsive imaging member in accordance with claim 16 wherein the amorphous silicon photogenerating layer is situated between a supporting substrate and the amorphous boron layer.
Claim 26
Dependent Claim
35 words
A photoresponsive imaging member in accordance with claim 16 wherein the amorphous boron layer is situated between the amorphous silicon photogenerating layer and a supporting substrate, and the member further includes thereover an overcoating layer.
Claim 27
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 1 wherein hydrogen is present in an amount of from about 1 atomic percent to about 30 atomic percent.
Claim 28
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 3 wherein hydrogen is present in an amount of from about 5 atomic percent to about 30 atomic percent.
Claim 29
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 4 wherein hydrogen is present in an amount of from about 5 atomic percent to about 30 atomic percent.
Claim 30
Dependent Claim
27 words
A photoresponsive imaging member in accordance with claim 5 wherein hydrogen is present in an amount of from about 5 atomic percent to about 30 atomic percent.
Claim 31
Dependent Claim
32 words
A method of imaging which comprises generating a latent electrostatic image on the photoresponsive imaging member of claim 1; subsequently developing this image; and transferring the developed image to a suitable substrate.
Claim 32
Dependent Claim
20 words
A method of imaging in accordance with claim 32 wherein the photoresponsive imaging member is comprised of fluorinated amorphous boron.
Claim 33
Dependent Claim
27 words
A method of imaging in accordance with claim 27 wherein the photoresponsive imaging member is comprised of a mixture of amorphous hydrogenated boron and amorphous halogenated boron.
Claim 34
Dependent Claim
41 words
A method of imaging in accordance with claim 27 wherein the imaging member is comprised of a supporting substrate, and in contact therewith hydrogenated and/or fluorinated amorphous boron with a band gap of from about 1.4 to about 3 electron volts.
Claim 35
Dependent Claim
24 words
A method of imaging in accordance with claim 27 wherein there is further included in the imaging member a photogenerating layer of amorphous silicon.
Claim 36
Dependent Claim
16 words
A method of imaging in accordance with claim 27 wherein the selected supporting substrate is aluminum.
Claim 37
Dependent Claim
70 words
A photoresponsive imaging member consisting essentially of a supporting substrate, a photogenerating charge transport layer comprised of hydrogenated amorphous boron of from about 5 to about 30 atomic percent of hydrogen or halogen, which layer is with a thickness of from about 5 to about 25 microns; and wherein said hydrogenated amorphous boron or halogenated amorphous boron has a band gap of from about 1 to about 3 electron volts.
Claim 38
Dependent Claim
70 words
A photoresponsive imaging member consisting essentially of a supporting substrate, a photogenerating charge transport layer comprised of hydrogenated amorphous boron of from about 5 to about 30 atomic percent of hydrogen or halogen, which layer is with a thickness of from about 5 to about 25 microns; and wherein said hydrogenated amorphous boron or halogenated amorphous boron has a band gap of from about 1 to about 3 electron volts.
Claim 39
Dependent Claim
18 words
A photoresponsive imaging member in accordance with claim 33 wherein the band gap is about 2 electron volts.
Claim 40
Dependent Claim
87 words
A photoresponsive imaging member consisting essentially of a supporting substrate, a photoconductive layer comprised of hydrogenated amorphous boron or halogenated amorphous boron in a thickness of from about 5 to about 25 microns, each with a band gap of from about 1 to about 3 electron volts; and wherein the hydrogen or halogen is present in a gradient in an amount of from 0 percent in close proximity to supporting substrate, and extending to an amount of about 30 percent at the interface between the photoconductive layer.
Claim 41
Dependent Claim
87 words
A photoresponsive imaging member consisting essentially of a supporting substrate, a photoconductive layer comprised of hydrogenated amorphous boron or halogenated amorphous boron in a thickness of from about 5 to about 25 microns, each with a band gap of from about 1 to about 3 electron volts; and wherein the hydrogen or halogen is present in a gradient in an amount of from 0 percent in close proximity to supporting substrate, and extending to an amount of about 30 percent at the interface between the photoconductive layer.
Claim 42
Dependent Claim
28 words
A photoresponsive imaging member in accordance with claim 35 wherein the hydrogen or halogen is present in an amount of from about 5 to about 15 atomic percent.
Claim 43
Dependent Claim
30 words
A photoresponsive imaging member in accordance with claim 33 wherein the thickness of the hydrogenated amorphous boron or halogenated amorphous boron layer is from about 5 to about 25 microns.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
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