Patent US4060426A successfully refreshed from Google Patents.
US4060426A
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US
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Tin indium oxide and polyvinylcarbazole layered polarized photovoltaic cell
Assignee: Polaroid Corp
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Filing: 1976-06-14
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Granted: 1977-11-29
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Expires: 1996-06-14
Abstract
Abstract A polarized photosensitive transducer is provided with a substantially transparent substrate over which there is preferably deposed a substantially transparent electroconductive layer of tin oxide-indium oxide. Overlying the electroconductive layer, there is provided a substantially transparent photoconductive layer comprised of a polymerized vinylcarbazole compound. A second transparent electroconductive layer consisting of tin oxide-indium oxide is thereafter sputtered in overlying relation with respect to the photoconductive layer such that all the layers overlying the substrate cooperatively define a substantially transparent polarized photosensitive transducer.
Inventors
- 👤 Michael Zinchuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:02
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; H; H10; H10F; H10F77/00; H10F77/20; H10F77/244; H10F77/247; H10K; H10K30/00; H10K30/451; H10K85/00; H10K85/10; H10K85/141; H10K85/146; H10K2102/00; H10K2102/10; H10K2102/101; H10K2102/103; H10K30/30; H10K39/00; H10K39/30; H10K39/32; H10K71/00; H10K71/30; H10K85/60; H10K85/615; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
A polarized photosensitive transducer of the type exhibiting both a photovoltaic and a photoconductive effect comprising: a transparent substrate; a first electrically conductive layer disposed on said substrate to a sufficient thickness to display a continuous electrical conductivity throughout while still accommodating the transmission of visible light; a photoconductive layer comprising a mixture of poly-N-vinylcarbazole and 2,4,7 -trinitro-9-fluorenone deposed on said electrically conductive layer; and a second electrically conductive layer comprising tin oxide-indium oxide sputtered on said photoconductive layer to a sufficient thickness to display a continuous electrical conductivity throughout while accommodating the transmission of visible light to provide a barrier layer at the boundary between said photoconductive layer and said second layer resulting in said transducer displaying a polarized photovoltaic response regardless of transducer orientation with respect to incident radiation.
Claim 2
Dependent Claim
131 words
A polarized photosensitive transducer of the type exhibiting both a photovoltaic and a photoconductive effect comprising: a transparent substrate; a first electrically conductive layer disposed on said substrate to a sufficient thickness to display a continuous electrical conductivity throughout while still accommodating the transmission of visible light; a photoconductive layer comprising a mixture of poly-N-vinylcarbazole and 2,4,7 -trinitro-9-fluorenone deposed on said electrically conductive layer; and a second electrically conductive layer comprising tin oxide-indium oxide sputtered on said photoconductive layer to a sufficient thickness to display a continuous electrical conductivity throughout while accommodating the transmission of visible light to provide a barrier layer at the boundary between said photoconductive layer and said second layer resulting in said transducer displaying a polarized photovoltaic response regardless of transducer orientation with respect to incident radiation.
Claim 3
Dependent Claim
17 words
The Photosensitive transducer of claim 1 wherein: said first electrically conductive layer comprises a film of tin
Claim 4
Dependent Claim
31 words
The photosensitive transducer of claim 1 wherein said mixture of poly-N-vinylcarbazole, and 2,4,7, -trinitro-9-fluorenone are mixed in ratios corresponding to approximately 250 mg. of poly-N-vinylcarbazole, and 5 mg. of 2,4,7 -trinitro-9-fluorenone.
Claim 5
Dependent Claim
22 words
The photosensitive transducer of claim 1 wherein said tin oxide-indium oxide layer respectively comprises approximately 90% tin oxide and 10% indium oxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |