US4873556A
Expired / Lapsed
US
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Hetero-junction device
Assignee: Mitsubishi Electric Corp
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Filing: 1988-03-25
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Granted: 1989-10-10
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Expires: 2008-03-25
Abstract
Abstract The present invention relates to a hetero-junction device comprising a hetero-junction formed at the interface of two pi -conjugated system polymers (A) and (B) wherein on the first pi -conjugated system polymer (A) a second pi -conjugated polymer (B) different from said polymer (A) is deposited thereby making it possible to control junction properties by altering the quantity of doping to the polymer.
Inventors
- 👤 Kenji Hyodo
- 👤 Hiroshi Koezuka
- 👤 Alan G. MacDiarmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:20
CPC Classifications
H; H10; H10K; H10K10/00; H10K10/20; H10K10/26; H10K85/00; H10K85/10; H10K85/111; H10K85/141; H10K85/143
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
52 words
A hetero-junction device comprising a hetero-junction formed at the interface of a π-conjugated system polymer (A) and a π-conjugated system polymer (B), said π-conjugated system polymer (B) being deposited on said polymer (A) and being a different polymer from said polymer (A) to provide a non-ohmic behavior in a solid state condition.
Claim 2
Dependent Claim
52 words
A hetero-junction device comprising a hetero-junction formed at the interface of a π-conjugated system polymer (A) and a π-conjugated system polymer (B), said π-conjugated system polymer (B) being deposited on said polymer (A) and being a different polymer from said polymer (A) to provide a non-ohmic behavior in a solid state condition.
Claim 3
Dependent Claim
68 words
The hetero-junction device according to claim 1 wherein said π-conjugated system polymer (A) is at least disposed on a metal layer 90 which itself is deposited on a substrate, said metal layer being capable of being brought into ohmic contact with said polymer (A) and said π-conjugated system polymer (B) having a metal layer provided upon it capable of being brought into ohmic contact with said polymer (B).
Claim 4
Dependent Claim
23 words
The hetero-junction device according to claim 1 wherein said π-conjugated system polymer (A) is polyacetylene and said π-conjugated system polymer (B) is polypyrrole.
Claim 5
Dependent Claim
25 words
The hetero-junction device according to claim 1 wherein said π-conjugated system polymer (A) is polyacetylene and said π-conjugated system polymer (B) is poly (N-substituted) pyrrole.
Claim 6
Dependent Claim
18 words
The hetero-junction device according to claim 3 wherein said polypyrrole is that produced by an electrochemical polymerization technique.
Claim 7
Dependent Claim
20 words
The hetero-junction device according to claim 4 wherein said poly (N-substituted) pyrrole is that produced by an electrochemical polymerization technique.
Claim 8
Dependent Claim
21 words
The hetero-junction device according to claim 5 wherein said polypyrrole is that produced by an electrochemical polymerization in an aqueous solution.
Claim 9
Dependent Claim
23 words
The hetero-junction device according to claim 6 wherein said poly (N-substituted) pyrrole is that produced by an electrochemical polymerization in an aqueous solution.
Claim 10
Dependent Claim
18 words
The hetero-junction device according to claim 6 or 8 wherein said poly (N-substituted) pyrrole is poly (N-methyl) pyrrole.
Claim 11
Dependent Claim
20 words
The hetero-junction device according to claim 9 wherein at least one of said π-conjugated polymers (A) and (B) is doped.
Claim 12
Dependent Claim
20 words
The hetero-junction device according to claim 1 wherein at least one of said π-conjugated polymers (A) and (B) is doped.
Claim 13
Dependent Claim
20 words
The hetero-junction device according to claim 2 wherein at least one of said π-conjugated polymers (A) and (B) is doped.
References Cited (Backward Citations)
FR2373166A2
Cited
US4106951A
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US4204216A
Cited
JPS55130182A
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JPS55138870A
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EP0124702A1
Cited
US4427840A
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US4472488A
Cited
EP0145843A2
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BE899925A
Cited
US4663001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |