US4808462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar cell substrate
Assignee: AMORPHOUS SILICON Inc 5800 MONROE STREET BLDG F SYLVANIA OH 43560 A CORP OF OHIO
•
Filing: 1987-05-22
•
Granted: 1989-02-28
•
Expires: 2007-05-22
Abstract
Abstract A solar cell substrate comprising a glass substrate and a transparent electrically conductive layer formed thereon, said conductive layer having a plurality of polygonal projections, having approximate diameters of from 0.1 to 0.3 μm and height/diameter ratios of at least 0.6
Inventors
- 👤 Susumu Yaba
- 👤 Christopher M. Walker
- 👤 Stephen Muhl
- 👤 Arun Madan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:25
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/10; H10F77/16; H10F77/169; H10F77/1692; H10F71/00; H10F71/138; H10F77/70; H10F77/707; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364; Y10T428/24628
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
A solar cell substrate, comprising a transparent glass substrate having at least one surface and an electrically conductive layer of a tranparent conductive material formed thereon by atmospheric pressure chemical vapor deposition, said conductive layer having a surface topography including a plurality of polygonal projections extending in a direction opposite said one surface of the substrate and said polygonal projections having diameters in the range from 0.1 to 0.3 μm and height/diameter ratios of at least 0.6 over more than eighty percent of the surface topography.
Claim 2
Dependent Claim
86 words
A solar cell substrate, comprising a transparent glass substrate having at least one surface and an electrically conductive layer of a tranparent conductive material formed thereon by atmospheric pressure chemical vapor deposition, said conductive layer having a surface topography including a plurality of polygonal projections extending in a direction opposite said one surface of the substrate and said polygonal projections having diameters in the range from 0.1 to 0.3 μm and height/diameter ratios of at least 0.6 over more than eighty percent of the surface topography.
Claim 3
Dependent Claim
21 words
The solar cell substrate as in claim 1, wherein the height/diameter ratio of said polygonal projections is from 0.7 to 1.2.
Claim 4
Dependent Claim
35 words
The solar cell substrate as in claim 1, wherein said transparent conductive material is selected from a group consisting of tin oxide, fluorine doped tin oxide, antimony doped tin oxide, and indium doped tin oxide.
Claim 5
Dependent Claim
22 words
The solar cell substrate as in claim 1, wherein said electrically conductive layer has a sheet resistance of from 4 to 10Ω/□.
Claim 6
Dependent Claim
20 words
The solar cell substrate as in claim 1, wherein said electrically conductive layer has a haze from 8 to 30%.
References Cited (Backward Citations)
US4500743A
Cited
US4554727A
Cited
US4532537A
Cited
US4497974A
Cited
US4599482A
Cited
US4746372A
Cited
US4689438A
Cited
US4694116A
Cited
US4683160A
Cited
US4732621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |