US4658087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectrodes for photoelectrochemical cell devices
Assignee: Corning Glass Works
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Filing: 1986-02-20
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Granted: 1987-04-14
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Expires: 2006-02-20
Abstract
Abstract This invention is concerned with producing glasses in the As-Se-Cu field exhibiting properties rendering them eminently suitable for photoelectrodes of photoelectrochemical devices. The glasses consist essentially of compositions within the region ABCDEA of FIG. 1.
Inventors
- 👤 Gerald D. Fong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/32; C03C3/321; H; H01; H01G; H01G9/00; H01G9/20; H01M; H01M14/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
In a photoelectrochemical cell device consisting essentially of: (a) an electrolyte containing appropriately chosen redox couples in contact with (b) a working electrode, voltage-biased with respect to (c) a convenient reference electrode and in series with (d) a photoelectrode, the improvement comprising said photoelectrode being composed of a glass exhibiting a bandgap of about 0.8-2.5 eV, an electrical resistivity less than about 10 6 ohm-cm, and an open-circuit photopotential of about 50-500 millivolts under white light, as exemplified by illumination from a 150 watt Xenon lamp, and consisting essentially of an As-Se-Cu composition within area ABCDEA of FIG. 1.
Claim 2
Dependent Claim
99 words
In a photoelectrochemical cell device consisting essentially of: (a) an electrolyte containing appropriately chosen redox couples in contact with (b) a working electrode, voltage-biased with respect to (c) a convenient reference electrode and in series with (d) a photoelectrode, the improvement comprising said photoelectrode being composed of a glass exhibiting a bandgap of about 0.8-2.5 eV, an electrical resistivity less than about 10 6 ohm-cm, and an open-circuit photopotential of about 50-500 millivolts under white light, as exemplified by illumination from a 150 watt Xenon lamp, and consisting essentially of an As-Se-Cu composition within area ABCDEA of FIG. 1.
Claim 3
Dependent Claim
34 words
In a solid state electronic component consisting essentially of a metal/glass junction with rectifying properties, the improvement comprising said glass being composed essentially of an As-Se-Cu composition within the area ABCDEA of FIG. 1.
Claim 4
Dependent Claim
34 words
In a solid state electronic component consisting essentially of a metal/glass junction with rectifying properties, the improvement comprising said glass being composed essentially of an As-Se-Cu composition within the area ABCDEA of FIG. 1.
Claim 5
Dependent Claim
26 words
A photoelectrochemical cell device according to claim 1 wherein said photoelectrode is composed of a glass which exhibits a bandgap in the vicinity of 1.0 eV.
Claim 6
Dependent Claim
27 words
A photoelectrochemical cell device according to claim 1 wherein said photoelectrode is composed of a glass having a composition which lies within area BCFB of FIG. 1.
Claim 7
Dependent Claim
24 words
A solid state electronic component according to claim 2 wherein said glass consists essentially of a composition within the area BCFB of FIG. 1.
Claim 8
Dependent Claim
20 words
A solid state electronic component according to claim 2 selected from the group consisting of a diode and a photodiode.
References Cited (Backward Citations)
US3841739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |