EP0234222A2
Expired / Lapsed
EP
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Solar battery
Assignee: Fuji Electric Co Ltd
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Filing: 1987-01-14
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Granted: —
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Expires: 2007-01-14
Abstract
Abstract A method of manufacturing a high efficiency solar battery and a high efficiency solar battery comprising a transparent electrode (2) of SnO₂ or ITO, and a semiconductor layer (3) and a metal electrode (4) formed on the transparent electrode in the stated order. The surface unevenness of the transparent electrode is controlled by forming a dual layer structure. The layer adjacent the transparent substrate (1) comprises an undoped SnO₂ or ITO layer, having crystal grains growing substantially perpendicular to the substrate, producing an uneven surface. A doped layer containing impurities, such as F, Cl and Sb is deposited over the undoped layer.
Inventors
- 👤 Kazuseu C/O Fuji Electric Corporate Itoga
- 👤 Takeshige C/O Fuji Electric Corporate Ichimura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 01:32
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/20; H10F77/244; H10F77/70; H10F77/703; H10F77/707; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
53 words
A solar battery comprising a transparent electrode formed on a substrate and a semiconductor film and a metal electrode formed on said transparent electrode in the stated order, characterized in that said transparent electrode comprises an impurity undoped layer formed on said substrate and an impurity doped layer formed on said undoped layer.
Claim 2
Dependent Claim
53 words
A solar battery comprising a transparent electrode formed on a substrate and a semiconductor film and a metal electrode formed on said transparent electrode in the stated order, characterized in that said transparent electrode comprises an impurity undoped layer formed on said substrate and an impurity doped layer formed on said undoped layer.
Claim 3
Dependent Claim
17 words
The solar battery of Claim 1, wherein said transparent electrode comprises a transparent conductive film of oxide.
Claim 4
Dependent Claim
24 words
The solar battery of Claim 2, wherein said oxide is one member selected from the group consisting of tin oxide or indium tin oxide.
Claim 5
Dependent Claim
28 words
The solar battery of Claim 1, wherein said impurities in said doped layer is one member selected from the group consisting of fluorine, chlorine, antimony and mixtures thereof.
Claim 6
Dependent Claim
17 words
The solar battery of Clailm 1, wherein said undoped layer has a thickness less than 0.3 µm.
Claim 7
Dependent Claim
17 words
The solar battery of Clailm 1, wherein said undoped layer has a thickness less than 0.3 µm.
Claim 8
Dependent Claim
18 words
The solar battery of Claim 5, wherein said undoped layer has a thickness from 0.08 to 0.2 µm.
Claim 9
Independent Claim
43 words
A method of manufacturing a solar battery comprising a transparent electrode formed on a substrate, and a semiconductor film and a metal electrode formed on said transparent electrode in the stated order, said method comprising forming said transparent electrode as a dual layer.
Claim 10
Independent Claim
43 words
A method of manufacturing a solar battery comprising a transparent electrode formed on a substrate, and a semiconductor film and a metal electrode formed on said transparent electrode in the stated order, said method comprising forming said transparent electrode as a dual layer.
Claim 11
Dependent Claim
38 words
The method of Claim 7, wherein said transparent electrode comprises a transparent conductive film of oxide and said forming step comprises forming an undoped oxide layer adjacent said substate and forming a doped layer upon said undoped layer.
Claim 12
Dependent Claim
23 words
The method of Claim 8, wherein said oxide comprises a member selected from the group consisting of tin oxide and indium tin oxide.
Claim 13
Dependent Claim
37 words
The method of Claim 7, wherein said step of forming said doped layer comprises forming a layer of oxide containing an impurity comprising one member selected from the group consisting of fluorine, chlorine, antimony and mixtures thereof.
References Cited (Backward Citations)
No citation records indexed.
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