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US 2010/0059101 A1Published application
Photovoltaic device and manufacturing method of photovoltaic device
AssigneeSanyo Electric Co., Ltd.
InventorWataru Shinohara
Life of this patent
Estimating the term…
Abstract
A photovoltaic device is provided comprising an a-Si unit in which a plurality of a-Si cells are connected in series over a transparent insulating substrate, and a μc-Si unit in which a plurality of μc-Si cells having an optical band gap which differs from that of the a-Si cell are connected in series over a substrate, wherein a light-transmissive inorganic insulating layer is formed over at least one of the a-Si unit and the μc-Si unit, and the a-Si unit and the μc-Si unit are fixed by a light-transmissive resin layer while the a-Si unit and the μc-Si unit are opposed to each other in opposite integration directions with the transparent insulating substrate and the substrate being at outer sides.
Claims9
A photovoltaic device comprising:
- a first photovoltaic unit in which a plurality of photovoltaic cells are connected in series in a first connecting direction over a first substrate which has an insulating surface and which is light-transmissive;
- and
- a second photovoltaic unit in which a plurality of photovoltaic cells having an optical band gap which differs from that of the first photovoltaic unit are connected in series in a second connecting direction over a second substrate which has an insulating surface, wherein
- the first connecting direction and the second connecting direction are directions of flow of current;
- a light-transmissive inorganic insulating layer is formed over at least one of the first photovoltaic unit and the second photovoltaic unit, and
- the first photovoltaic unit and the second photovoltaic unit are fixed by a light-transmissive resin layer while the first photovoltaic unit and the second photovoltaic unit are opposed to each other with the first connecting direction and the second connecting direction being opposite directions and the first substrate and the second substrate being at outer sides.
3 more elements
A method of manufacturing a photovoltaic device, comprising the steps of:
- forming, over a first substrate which has an insulating surface and which is light-transmissive, a first photovoltaic unit in which a plurality of photovoltaic cells are connected in series in a first connecting direction;
- forming, over a second substrate which has an insulating surface, a second photovoltaic unit in which a plurality of photovoltaic cells having an optical band gap which differs from that of the first photovoltaic unit are connected in series in a second connecting direction;
- forming a light-transmissive inorganic insulating layer over at least one of the first photovoltaic unit and the second photovoltaic unit;
- forming an opening channel in the light-transmissive inorganic insulating layer;
- injecting a conductive material into the opening channel of the light-transmissive inorganic insulating layer;
- and
- fixing the first photovoltaic unit and the second photovoltaic unit with a light-transmissive resin layer therebetween, the light-transmissive resin layer having an opening channel corresponding to a position of the opening channel of the light-transmissive inorganic insulating layer, while the first connecting direction and the second connecting direction are directions of flow of current and the first photovoltaic unit and the second photovoltaic unit are opposed to each other with the first connecting direction and the second connecting direction being opposite directions and the first substrate and the second substrate being at outer sides.
4 more elements
A method of manufacturing a photovoltaic device, comprising the steps of:
- forming, over a first substrate which has an insulating surface and which is light-transmissive, a first photovoltaic unit in which a plurality of photovoltaic cells are connected in series in a first connecting direction;
- forming, over a second substrate which has an insulating surface, a second photovoltaic unit in which a plurality of photovoltaic cells having an optical band gap which differs from that of the first photovoltaic unit are connected in series in a second connecting direction;
- forming a light-transmissive inorganic insulating layer over at least one of the first photovoltaic unit and the second photovoltaic unit;
- fixing the first photovoltaic unit and the second photovoltaic unit with a light-transmissive resin layer therebetween while the first connecting direction and the second connecting direction are directions of flow of current and the first photovoltaic unit and the second photovoltaic unit are opposed to each other with the first connecting direction and the second connecting direction being opposite directions and the first substrate and the second substrate being at outer sides;
- forming an opening channel from a side near the second substrate;
- and
- injecting a conductive material into the opening channel.
4 more elements
A photovoltaic device comprising:
- a first photovoltaic unit in which a plurality of photovoltaic cells are connected in series in a first connecting direction over a first substrate which has an insulating surface and which is light-transmissive;
- and
- a second photovoltaic unit in which a plurality of photovoltaic cells having an optical band gap which differs from that of the first photovoltaic unit are connected in series in a second connecting direction over a second substrate which has an insulating surface, wherein
- the first connecting direction and the second connecting direction are directions of flow of current;
- the first photovoltaic unit and the second photovoltaic unit are fixed by a light-transmissive resin layer while the first photovoltaic unit and the second photovoltaic unit are opposed to each other with the first connecting direction and the second connecting direction being opposite directions and the first substrate and the second substrate being at outer sides;
- and
- particles having an index of refraction which differs from that of a primary material of the light-transmissive resin layer are embedded in the light-transmissive resin layer.
4 more elements
Dependencies are inferred from the claim text.