US3977905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar cell with niobium pentoxide anti-reflective coating
Assignee: Comsat Corp
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Filing: 1975-06-20
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Granted: 1976-08-31
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Expires: 1995-06-20
Abstract
Abstract A niobium pentoxide (Nb 2 O 5 ) anti-reflective coating for use on a solar cell responsive to light in the short wavelength region.
Inventors
- 👤 Akos G. Revesz
- 👤 Joseph Lindmayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:15
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/311; H10F77/315; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A solar cell responsive to light, including light in the short wavelength region of the light spectrum between 0.3 and 0.5 microns, and having an anti-reflective coating over the primary surface of the solar cell through which light enters, which coating does not absorb or reflect useful light including short wavelength light, the improvement comprising an anti-reflective coating consisting of niobium pentoxide.
Claim 2
Dependent Claim
62 words
A solar cell responsive to light, including light in the short wavelength region of the light spectrum between 0.3 and 0.5 microns, and having an anti-reflective coating over the primary surface of the solar cell through which light enters, which coating does not absorb or reflect useful light including short wavelength light, the improvement comprising an anti-reflective coating consisting of niobium pentoxide.
Claim 3
Dependent Claim
125 words
A silicon solar cell having a top and bottom surface and being responsive to light in the short wavelength region of the visible spectrum, comprising: a first semiconductor layer of first type conductivity, a second semiconductor layer of second type conductivity, the interface between said layers defining a junction located less than 2,500 A below the top surface of said cell, a first current collector on the top surface of said cell, a second current collector on the bottom surface of said cell, and a coating of niobium pentoxide disposed on the top surface of said cell to enable substantially all of said light to enter the first layer through those areas of said top surface which are not occupied by said first current collector.
Claim 4
Dependent Claim
125 words
A silicon solar cell having a top and bottom surface and being responsive to light in the short wavelength region of the visible spectrum, comprising: a first semiconductor layer of first type conductivity, a second semiconductor layer of second type conductivity, the interface between said layers defining a junction located less than 2,500 A below the top surface of said cell, a first current collector on the top surface of said cell, a second current collector on the bottom surface of said cell, and a coating of niobium pentoxide disposed on the top surface of said cell to enable substantially all of said light to enter the first layer through those areas of said top surface which are not occupied by said first current collector.
References Cited (Backward Citations)
US3106489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |