CN101246924A - Solar battery with substrate having texture surface - Google Patents
Solar battery with substrate having texture surface Download PDFInfo
- Publication number
- CN101246924A CN101246924A CNA2007100049770A CN200710004977A CN101246924A CN 101246924 A CN101246924 A CN 101246924A CN A2007100049770 A CNA2007100049770 A CN A2007100049770A CN 200710004977 A CN200710004977 A CN 200710004977A CN 101246924 A CN101246924 A CN 101246924A
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- glass substrate
- photovoltaic device
- glass
- substrate
- film photovoltaic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/548—Amorphous silicon PV cells
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Abstract
The present invention discloses a film photovoltaic device with grain surface substrate. On the outer surface of glass substrate of p-i-n type hydrogenated Si photovoltaic device, the outer surface of glass substrate has grain state by mechanistic or chemical method, and the sunshine dispersed efficiently, the light current is increased and the photoelectric conversion is improved efficiency.
Description
Technical field
The present invention relates to the solar photovoltaic device field, specially refer to and use the film photovoltaic device of glass as cover plate and substrate.
Background technology
Recent years, the development of photovoltaic cell and large tracts of land photovoltaic module has caused common people's extensive concern.Especially amorphous silicon hydride and nanocrystal silicon, they demonstrate great potential along with the extensive use of photovoltaic device in commercial and dwelling house facility.Producing distinguishing feature of thin film silicon photovoltaic device under temperature so lower below 260 ℃ is, the semiconductor film relevant of large tracts of land deposition with silicon with electrically contact rete and have premium properties.Simultaneously, use good ripe filming equipment and program, can make to industrialization template cheaply.The laser scribing moulding process (laserpatterning) that is applied to the different films on the same glass substrate allows a plurality of solar cell devices directly to form the large tracts of land photovoltaic module of integrated form in film deposition process.
For photovoltaic device, film photovoltaic device particularly, the key that makes its function admirable is to optimize the absorption of photoelectric conversion semiconductor layer to luminous energy, and reduces the optical loss in the device simultaneously.Can absorb luminous energy to greatest extent in very thin absorbed layer, be the essential condition of high conversion efficiency.The solar cell that the hydrogenation thin film silicon is constituted, the thickness of its absorbed layer generally have only a hundreds of micron, are no more than about 2000 microns at most.And the absorption coefficient of the ruddiness of hydrogenated silicon film by utilizing and infrared light is all lower, so there is very most sunlight not to be effectively used.Various ways were attempted, and improved the absorption to light.Comprising using coarse transparent preceding electrode, in addition, use the very high back electrode of reflecting rate, make unabsorbed light be got back in the battery by throwing again.Can not do very thickly for amorphous silicon battery absorbed layer i layer, reason is the defective that this material has the light quality decay.So it is very important that the way of optical engineering plays a part in making the thin-film silicon cell process.
Most solar components or templates all is to use level and smooth glass substrate or glass cover-plate to make on the current market, and the sunlight of incident is not subjected to scattering at glass surface when entering solar cell.In order to improve thin film photocell to weak light absorbing reaction, just must increase its optical path length in semiconductive thin film, one of way that reaches this purpose is exactly to make glass surface have the ability of light scattering.
Summary of the invention
Based on above-mentioned consideration, the applicant has worked out primary and foremost purpose of the present invention: a kind of solar battery glass substrate with texture outer surface is provided, thereby increases its photoelectric current and photoelectric conversion efficiency.
It is of the present invention that to advance a purpose be that a technological means that makes glass substrate have scattering sunlight characteristic is provided.
For achieving the above object, the present invention handles the outer surface of glass substrate, makes it have veining and to the scattering power of visible light.At the outer surface of the glass substrate of p-i-n type silane photovoltaic device, use machinery or chemical method to make the outer surface of glass substrate have the texture phase of micron-scale.This is the way of the light absorption of an effectively enhancing semiconductor inversion layer.Because sunlight is come by coarse glass surface refraction (scattering), make it enter into thin-film solar cells with bigger angle, can increase the interactional path of light and conversion layer like this, also having increased not simultaneously, absorbed light reflects the absorbed probability in back at back electrode.The means of this scattering sunlight can effectively increase the photoelectric current of photovoltaic device, thereby improve its photoelectric conversion efficiency.
Our experiment shows, this way that makes the glass surface roughening can increase the absorption of thin-film solar cells to light really, and particularly when the way of this way and other traditional enhancing light absorption combined use, this effect was more obvious.Sharpest edges of the present invention are, will put on the refraction of light on first interface that light enters solar cell, and this interface also is the best interface of light being caused refraction.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing has shown the structure of the thin-film solar cells of a glass substrate with rough surface.
Embodiment
As shown in drawings, the p-i-n type film photovoltaic device of the use glass substrate that we were concerned about most comprises as the lower part: a glass substrate 1; A transparent preceding electrode (tin oxide) 2; P layer 6; I layer 8; N layer 9; Having reflexive back electrode, is to be made of zinc oxide 22 and metallic film 45.The intent of the present invention is to make glass substrate 1 have coarse surface 11.
Have several methods to handle the top layer of base plate glass, make it become coarse, coarse size should be in micrometer range, and is close with light wavelength.Thereby it is had visible light, particularly the ability of ruddiness and infrared light refraction.Make glass substrate have the optimal path of controllable pre-designed texture, be on the float glass line of producing glass, when glass also is in half melting state, apply Die and mould plate on its surface with texture, make cooled glass have the surface texture structure that template is brought.
Other also comprises the method for glass surface roughening, with the way of machinery on glass surface (processing of sandblasting) is hit in the spray of fine sand bundle, makes its outer surface produce a lot of holes uniformly shape structure; With the way of Sandpapering, make glass become coarse; Make the glass roughening with chemically treated way, comprise glass attack in certain class acidic liquid.Certainly also having a kind of way is exactly to plate the film that other one deck has astigmatic ability on the surface of glass.
Claims (3)
1. the glass substrate of a film photovoltaic device is characterized in that: its outer surface right and wrong towards sunlight are smooth, texture, visible light is had the rough surface with micrometer structure of scattering process.The formation of described film photovoltaic device comprises as the lower part: a glass substrate; A transparent preceding electrode; A series of semiconductive thin film comprises the p-i-n structure based on silane; Has reflexive back electrode.
2. the glass substrate of film photovoltaic device according to claim 1 is characterized in that: its non-level and smooth surface texture with astigmatic characteristic is to form on the float glass line of producing glass substrate.
3. the glass substrate of film photovoltaic device according to claim 1 is characterized in that: its non-level and smooth surface texture with astigmatic characteristic is obtained by machinery or chemical treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100049770A CN101246924A (en) | 2007-02-14 | 2007-02-14 | Solar battery with substrate having texture surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100049770A CN101246924A (en) | 2007-02-14 | 2007-02-14 | Solar battery with substrate having texture surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101246924A true CN101246924A (en) | 2008-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100049770A Pending CN101246924A (en) | 2007-02-14 | 2007-02-14 | Solar battery with substrate having texture surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101246924A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814560A (en) * | 2009-02-23 | 2010-08-25 | 涂爱国 | Optical medium used for photoconducting device, luminescent device and solar battery |
| CN101866958A (en) * | 2010-05-14 | 2010-10-20 | 河海大学常州校区 | Biomimetic antireflection film of solar cell and preparation method thereof |
| CN102136373A (en) * | 2011-01-22 | 2011-07-27 | 上海联孚新能源科技有限公司 | Dye sensitized solar cell and method for treating surface of incident electrode thereof |
| CN102201497A (en) * | 2011-05-10 | 2011-09-28 | 浙江正泰太阳能科技有限公司 | Thin-film solar energy cell and manufacturing method thereof |
| CN102217085A (en) * | 2008-11-13 | 2011-10-12 | 应用材料股份有限公司 | A method of forming front contacts to a silicon solar cell without patterning |
| CN101764169B (en) * | 2008-12-25 | 2012-01-25 | 太阳海科技股份有限公司 | Solar cell element and production method thereof |
| CN102347379A (en) * | 2010-07-31 | 2012-02-08 | 信义光伏产业(安徽)控股有限公司 | Conductive glass and preparation method and application thereof |
| CN102648530A (en) * | 2009-11-30 | 2012-08-22 | 康宁股份有限公司 | Textured superstrates for photovoltaics |
| CN104752557A (en) * | 2013-12-31 | 2015-07-01 | 中国电子科技集团公司第十八研究所 | Preparation method of light trapping structure type copper indium gallium diselenide thin film solar cell |
| CN109742163A (en) * | 2019-01-25 | 2019-05-10 | 武汉宇恩防伪技术有限公司 | A kind of solar battery thin film structure with anti-reflecting layer |
| WO2020020015A1 (en) * | 2018-07-27 | 2020-01-30 | (Cnbm) Bengbu Design & Research Institute For Glass Industry Co., Ltd | Solar module with patterned cover plate and optical interference layer |
| CN111960680A (en) * | 2019-05-20 | 2020-11-20 | 汉能移动能源控股集团有限公司 | Colored glass and photovoltaic module |
| US11908966B2 (en) | 2018-07-27 | 2024-02-20 | Cnbm Research Institute For Advanced Glass Materials Group Co., Ltd. | Solar module with patterned cover plate and optical interference layer |
-
2007
- 2007-02-14 CN CNA2007100049770A patent/CN101246924A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217085A (en) * | 2008-11-13 | 2011-10-12 | 应用材料股份有限公司 | A method of forming front contacts to a silicon solar cell without patterning |
| CN101764169B (en) * | 2008-12-25 | 2012-01-25 | 太阳海科技股份有限公司 | Solar cell element and production method thereof |
| CN101814560A (en) * | 2009-02-23 | 2010-08-25 | 涂爱国 | Optical medium used for photoconducting device, luminescent device and solar battery |
| CN102648530A (en) * | 2009-11-30 | 2012-08-22 | 康宁股份有限公司 | Textured superstrates for photovoltaics |
| CN101866958A (en) * | 2010-05-14 | 2010-10-20 | 河海大学常州校区 | Biomimetic antireflection film of solar cell and preparation method thereof |
| CN102347379B (en) * | 2010-07-31 | 2015-05-20 | 信义光伏产业(安徽)控股有限公司 | Conductive glass and preparation method and application thereof |
| CN102347379A (en) * | 2010-07-31 | 2012-02-08 | 信义光伏产业(安徽)控股有限公司 | Conductive glass and preparation method and application thereof |
| CN102136373A (en) * | 2011-01-22 | 2011-07-27 | 上海联孚新能源科技有限公司 | Dye sensitized solar cell and method for treating surface of incident electrode thereof |
| CN102201497A (en) * | 2011-05-10 | 2011-09-28 | 浙江正泰太阳能科技有限公司 | Thin-film solar energy cell and manufacturing method thereof |
| CN104752557A (en) * | 2013-12-31 | 2015-07-01 | 中国电子科技集团公司第十八研究所 | Preparation method of light trapping structure type copper indium gallium diselenide thin film solar cell |
| WO2020020015A1 (en) * | 2018-07-27 | 2020-01-30 | (Cnbm) Bengbu Design & Research Institute For Glass Industry Co., Ltd | Solar module with patterned cover plate and optical interference layer |
| US11908966B2 (en) | 2018-07-27 | 2024-02-20 | Cnbm Research Institute For Advanced Glass Materials Group Co., Ltd. | Solar module with patterned cover plate and optical interference layer |
| CN109742163A (en) * | 2019-01-25 | 2019-05-10 | 武汉宇恩防伪技术有限公司 | A kind of solar battery thin film structure with anti-reflecting layer |
| CN111960680A (en) * | 2019-05-20 | 2020-11-20 | 汉能移动能源控股集团有限公司 | Colored glass and photovoltaic module |
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Open date: 20080820 |