US4522905A
Expired / Lapsed
US
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Amorphous silicon photoconductive member with interface and rectifying layers
Assignee: Canon Inc
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Filing: 1983-02-01
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Granted: 1985-06-11
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Expires: 2003-02-01
Abstract
Abstract A photoconductive member comprises a support for photoconductive member, an interface layer constituted of an amorphous material containing at least silicon atoms and nitrogen atoms as constituent atoms, a rectifying layer comprising an amorphous material containing atoms (A) belonging to the group III or the group V of the periodic table as constituent atoms in a matrix of silicon atoms and an amorphous layer exhibiting photoconductivity constituted of an amorphous material containing at least one of hydrogen atoms or halogen atoms as constituent atoms in a matrix of silicon atoms, said rectifying layer having a layer thickness t which from 30 Å up to, but not reaching, 0.3μ and the content C(A) of the aforesaid atoms contained in the rectifying layer being 30 atomic ppm or more, or said t being 30 Å or more and said C(A) being from 30 atomic ppm up to, but not reaching, 100 atomic ppm.
Inventors
- 👤 Kyosuke Ogawa
- 👤 Shigeru Shirai
- 👤 Junichiro Kanbe
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
- 👤 Teruo Misumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08235; G03G5/0825
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
154 words
A photoconductive member which comprises a support for the photoconductive member, an interface layer constituted of an amorphous material containing at least silicon atoms and nitrogen atoms as constituent atoms, a rectifying layer comprising an amorphous material containing atoms (A) belonging to Group III or Group V excepting nitrogen of the Periodic Table as constituent atoms in a matrix of silicon atoms and an amorphous layer exhibiting photoconductivity constituted of an amorphous material containing at least one of hydrogen atoms or halogen atoms as constituent atoms in a matrix of silicon atoms, said rectifying layer having a layer thickness t which is from 30 Å up to, but not reaching, 0.3μ and the content C(A) of said aforesaid atoms contained in the rectifying layer being 30 atomic ppm or more, or said t being 30 Å or more and said C(A) being from 30 atomic ppm, up to, but not reaching, 100 atomic ppm.
Claim 2
Dependent Claim
154 words
A photoconductive member which comprises a support for the photoconductive member, an interface layer constituted of an amorphous material containing at least silicon atoms and nitrogen atoms as constituent atoms, a rectifying layer comprising an amorphous material containing atoms (A) belonging to Group III or Group V excepting nitrogen of the Periodic Table as constituent atoms in a matrix of silicon atoms and an amorphous layer exhibiting photoconductivity constituted of an amorphous material containing at least one of hydrogen atoms or halogen atoms as constituent atoms in a matrix of silicon atoms, said rectifying layer having a layer thickness t which is from 30 Å up to, but not reaching, 0.3μ and the content C(A) of said aforesaid atoms contained in the rectifying layer being 30 atomic ppm or more, or said t being 30 Å or more and said C(A) being from 30 atomic ppm, up to, but not reaching, 100 atomic ppm.
Claim 3
Dependent Claim
34 words
A photoconductive member according to claim 1, further having an amorphous layer constituted of an amorphous material containing at least silicon atoms and carbon atoms as constituent atoms on the amorphous layer exhibiting photoconductivity.
Claim 4
Dependent Claim
21 words
A photoconductive member according to claim 2, wherein the amorphous material containing carbon atoms further contains hydrogen atoms as constituent atoms.
Claim 5
Dependent Claim
21 words
A photoconductive member according to claim 2, wherein the amorphous material containing carbon atoms further contains halogen atoms as constituent atoms.
Claim 6
Dependent Claim
24 words
A photoconductive member according to claim 2, wherein the amorphous material containing carbon atoms further contains hydrogen atoms and halogen atoms as constituent atoms.
Claim 7
Dependent Claim
43 words
A photoconductive member according to claim 1, wherein atoms belonging to the group V of the periodic table are contained in the rectifying layer and atoms belonging to the group III of the periodic table are contained in the amorphous layer exhibiting photoconductivity.
Claim 8
Dependent Claim
23 words
A photoconductive member according to claim 1, wherein a substance for controlling the conduction characteristic is contained in the amorphous layer exhibiting photoconductivity.
Claim 9
Dependent Claim
60 words
A photoconductive member according to claim 2, wherein said amorphous material containing carbon atoms is selected from the amorphous materials represented by the following general formulae (1) Si a C 1-a wherein 0.1≦a≦0.99999; (2) (Si b C 1-b ) c H 1-c wherein 0.1≦b≦0.99999 and 0.6≦c≦0.99; and (3) (Si d C 1-d ) e (X,H) 1-e wherein 0.1≦d≦0.99999 and 0.8≦e≦0.99.
Claim 10
Dependent Claim
18 words
A photoconductive member according to claim 2, wherein the thickness of said amorphous layer ranges from 0.003-30 μ.
Claim 11
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein the thickness of said amorphous layer exhibiting photoconductivity ranges from 1-100μ.
Claim 12
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein said amorphous layer exhibiting photoconductivity contains 1-40 atomic % of hydrogen atoms.
Claim 13
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein said amorphous layer exhibiting photoconductivity contains 1-40 atomic % of halogen atoms.
Claim 14
Dependent Claim
28 words
A photoconductive member according to claim 1, wherein the sum total content of hydrogen and halogen atoms in said amorphous layer exhibiting photoconductivity ranges from 1-40 atomic %.
Claim 15
Dependent Claim
18 words
A photoconductive member according to claim 1, wherein said rectifying layer contains 1-40 atomic % of hydrogen atoms.
Claim 16
Dependent Claim
18 words
A photoconductive member according to claim 1, wherein said rectifying layer contains 1-40 atomic % of halogen atoms.
Claim 17
Dependent Claim
26 words
A photoconductive member according to claim 1, wherein the sum total content of hydrogen and halogen atoms in said rectifying layer ranges from 1-40 atomic %.
Claim 18
Dependent Claim
28 words
A photoconductive member according to claim 1, wherein said atoms (A) are selected from the group consisting of B, Al, Ga, In, Tl, P, As, Sb, and Bi.
Claim 19
Dependent Claim
61 words
A photoconductive member according to claim 1, wherein said amorphous material containing nitrogen atoms is selected from the amorphous materials represented by the following general formulae: (1) Si a N 1-a wherein 0.4≦a ≦0.99999; (2) (Si b N 1-b ) c H 1-c wherein 0.43≦b≦0.99999 and 0.65≦c≦0.98; and (3) (Si d N 1-d ) e (H,X) 1-e wherein 0.43≦d≦0.99999 and 0.8≦e≦0.99.
Claim 20
Dependent Claim
36 words
A photoconductive member according to claim 1, wherein an upper auxiliary layer comprising an amorphous material containing at least silicon and nitrogen atoms is further placed between the rectifying layer and the amorphous layer exhibiting photoconductivity.
References Cited (Backward Citations)
US3210184A
Cited
US4317844A
Cited
US4064521A
Cited
US4328258A
Cited
US4265991A
Cited
US4217374A
Cited
US4226898A
Cited
US4289822A
Cited
JPS5625743A
Cited
JPS5664347A
Cited
US4251289A
Cited
US4253882A
Cited
US4378417A
Cited
US4359514A
Cited
US4359512A
Cited
US4394426A
Cited
US4409308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |