Patent US4389534A successfully refreshed from Google Patents.
US4389534A
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Amorphous silicon solar cell having improved antireflection coating
Assignee: TOTAL ENERGIE DEVELOPPEMENT and MESSERSCHMITT-BOLKOW-BLOHM & Co GmbH
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Filing: 1981-12-11
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Granted: 1983-06-21
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Expires: 2001-12-11
Abstract
Abstract A semiconductor solar cell for the conversion of light to electric energy comprises at least one layer of amorphous silicon, a cover layer of poly-crystalline silicon and an anti-reflection layer of semiconducting transparent oxide of a refractive index of less than 2.8. The cover layer of poly-crystalline silicon has an optical density ##EQU1## or it may be ##EQU2## The cover layer is arranged between the anti-friction layer and the layer of amorphous silicon.
Inventors
- 👤 Gerhard Winterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:52
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/10; H10F77/16; H10F77/169; H10F77/1692; H10F77/30; H10F77/306; H10F77/311; H10F77/315; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A semiconductor component for the conversion of light to electric energy, comprising at least one layer of amorphous silicon, a cover layer of poly-crystalline silicon, and an anti-reflection layer of semiconducting transparent oxide of a refractive index less that 2.8, said cover layer of poly-crystalline silicon having an optical density of ##EQU7## and being arranged between said anti-reflection layer and said layer of amorphous silicon.
Claim 2
Dependent Claim
65 words
A semiconductor component for the conversion of light to electric energy, comprising at least one layer of amorphous silicon, a cover layer of poly-crystalline silicon, and an anti-reflection layer of semiconducting transparent oxide of a refractive index less that 2.8, said cover layer of poly-crystalline silicon having an optical density of ##EQU7## and being arranged between said anti-reflection layer and said layer of amorphous silicon.
References Cited (Backward Citations)
US4285762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-20 | 1986-12-20 | 1987-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-20 | 1990-12-20 | 1991-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-20 | 1994-12-20 | 1995-06-21 | $7700.00 | Window Closed / Lapsed |