US4411703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for applying antireflective coating on solar cell
Assignee: BP Solar International LLC
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Filing: 1982-01-20
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Granted: 1983-10-25
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Expires: 2002-01-20
Abstract
Abstract A method, and the composition, for the application of an antireflective coating on solar cells and the subsequent application of metal contacts comprising applying a screen to the surface of a solar cell, applying a paste comprising a metal alkoxide over the screen, heat treating the cell and metal alkoxide paste, and nickel plating the resultant cell.
Inventors
- 👤 Daniel L. Whitehouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:39
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/02; C23C18/12; C23C18/1204; C23C18/1208; C23C18/1216; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/05; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28; C23C18/125; C23C18/1295; H; H10; H10F; H10F77/00; H10F77/30; H10F77/306; H10F77/311; H10F77/315; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
A composition suitable for application onto the light impinging surface of a solar energy cell for forming an antireflective coating thereon, comprising: (a) a thickening or suspension agent selected from the group consisting of methylcellulose and ethylcellulose; (b) a liquid alcohol selected from the group consisting of aliphatic alcohols having at least six carbon atoms, terpenes and aromatic alcohols; and (c) a metal alkoxide, said metal being selected from the group consisting of tantalum, titanium, niobium, yttrium, zirconium, tellurium and mixtures thereof.
Claim 2
Dependent Claim
82 words
A composition suitable for application onto the light impinging surface of a solar energy cell for forming an antireflective coating thereon, comprising: (a) a thickening or suspension agent selected from the group consisting of methylcellulose and ethylcellulose; (b) a liquid alcohol selected from the group consisting of aliphatic alcohols having at least six carbon atoms, terpenes and aromatic alcohols; and (c) a metal alkoxide, said metal being selected from the group consisting of tantalum, titanium, niobium, yttrium, zirconium, tellurium and mixtures thereof.
Claim 3
Dependent Claim
44 words
A composition as claimed in claim 1, in which the ratio of thickening or suspension agent to alcohol is about 2/1 to about 20/1 and ratio of (a) thickening or suspension agent and alcohol to (b) metal alkoxide is about 10/1 to about 50/1.
Claim 4
Dependent Claim
26 words
A composition as claimed in claim 1 in which the alkoxide moiety is selected from the group consisting of methoxide, ethoxide, n-propoxide, iso-propoxide, butoxide and pentyloxide.
Claim 5
Dependent Claim
22 words
A composition as claimed in claim 1 in which the alcohol is selected from the group consisting of 2-ethylhexanol-1 and α- terpineol.
Claim 6
Dependent Claim
40 words
A composition as claimed in claim 1 in which the metal alkoxide is a mixture of the metal chloride and an alcohol and the ratio of metal chloride to alcohol is in the range of about 1/1 to about 1/3.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |