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US 6,525,264 B2Granted
Thin-film solar cell module
AssigneeSharp Kabushiki Kaisha
InventorsTakashi Ouchida, Katsushi Kishimoto, Yasushi Fujioka
Life of this patent
Estimating the term…
Abstract
A thin-film solar cell module of a light transmission type includes a light-transmissive substrate; a front electrode layer; a rear electrode layer, and a photovoltaic conversion layer. The rear electrode layer, front electrode layer, and photovoltaic conversion layer are sequentially laminated on the light-transmissive substrate. A heat retention member covers the rear electrode layer, and a sealing layer is provided for sealing the rear electrode layer. In certain embodiments, the heat retention member has a light absorptance of 40% or more within a near-infrared wavelength range of 1,500 to 2,000 nm.
Claims38
A thin-film solar cell module including a light transmission portion(s) occupying from about 1% to 50% of a power generating area of the solar cell module, the solar cell module comprising:
- a light-transmissive substrate;
- a front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated on the light-transmissive substrate;
- a heat retention member comprising a sealing layer and covering the rear electrode layer;
- and
- the sealing layer for sealing the rear electrode layer,
- wherein the heat retention member has a light absorptance of 40% or more within a near-infrared wavelength range of 1,500 to 2,000 nm.
5 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated on the light-transmissive substrate;
- and
- a heat retention member covering the rear electrode layer,
- wherein the heat retention member is formed of glass containing 1 to 50% by volume of gas therein.
4 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated on the light-transmissive substrate;
- and
- a heat retention member covering the rear electrode layer,
- wherein the heat retention member comprises a sealing layer and a thermal insulation layer formed on the sealing layer, and the thermal insulation layer includes a sheet comprising silica aerogel, and the sealing layer has a light absorptance of 40% or more within a near-infrared wavelength range of 1,500 to 2,000 nm.
4 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated on the light-transmissive substrate;
- a heat retention member covering the rear electrode layer, and
- wherein the heat retention member comprises a vacuum thermal insulator comprising a core member and a resin film wrapping the core member and has an inner pressure of 1 torr or lower.
3 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate on a light-receiving face of the module;
- a front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated on a face opposite to a light-receiving face of the light-transmissive substrate;
- and
- a heat retention member covering the rear electrode layer,
- wherein the heat retention member comprises a resin film, and the resin film has a light-receiving face and a non-light-receiving face and has a higher thermal emissivity on the light-receiving face than on the non-light-receiving face.
4 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated on the light-transmissive substrate;
- and
- a heat retention member covering the rear electrode layer,
- wherein the heat retention member comprises a frame for supporting the substrate, the front electrode layer, the photovoltaic conversion layer and the rear electrode layer, and the frame has a light-receiving face and a non-light-receiving face and has a higher thermal emissivity on the light-receiving face than on the non-light-receiving face.
4 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a transparent front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated and are supported by the light-transmissive substrate to form a solar cell;
- a light-transmissive portion running from the front electrode layer through the photovoltaic conversion layer and the rear electrode layer;
- and
- a light-transmissive sealing layer covering the rear electrode layer,
- wherein the sealing layer has a light absorptance of 40% or more within a near-infrared wavelength range of 1,500 to 2,000 nm.
5 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a transparent front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated and are supported by the light-transmissive substrate to form a solar cell;
- a light-transmissive portion running from the front electrode layer through the photovoltaic conversion layer and the rear electrode layer;
- and
- a light-transmissive sealing layer covering the rear electrode layer,
- wherein the sealing layer comprises glass containing 1 to 50% by volume of gas therein.
5 more elements
A thin-film solar cell module comprising:
- a light-transmissive substrate;
- a transparent front electrode layer;
- a photovoltaic conversion layer;
- a rear electrode layer, and wherein the front electrode layer, the photovoltaic conversion layer and the rear electrode layer are sequentially laminated and are supported by the light-transmissive substrate to form a solar cell;
- a light-transmissive portion running from the front electrode layer through the photovoltaic conversion layer and the rear electrode layer;
- a light-transmissive sealing layer covering the rear electrode layer, wherein the light-transmissive sealing layer has a light absorptance of 40% or more within a near-infrared wavelength range of 1,500 to 2,000 nm;
- and
- a light-transmissive thermal insulator covering the light-transmissive substrate or the sealing layer.
5 more elements
A thin-film solar cell module comprising:
- a solar cell element having a semiconductor layer comprising amorphous silicon, wherein a vacuum layer is formed on both light-receiving face and a non-light-receiving face of the solar cell element.
A thin-film solar cell module comprising:
- a solar cell element having a semiconductor layer comprising amorphous silicon and a thermal insulation means on a non-light-receiving face of the solar cell element, and
- wherein a rear face of the solar cell element is sealed with a resin film, and the resin film has a higher thermal emissivity on a light-receiving face of the resin film than on a non-light-receiving face of the resin film.
A thin-film solar cell module comprising:
- a solar cell element including a semiconductor layer comprising amorphous silicon and a thermal insulation means on a non-light-receiving face of the solar cell element, and
- wherein a frame is attached to the module, and the frame has a higher thermal emissivity on a light-receiving face of the frame than on a non-light-receiving face of the frame.
Dependencies are inferred from the claim text.