CN102299187A - Flexible solar cell device - Google Patents
Flexible solar cell device Download PDFInfo
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- CN102299187A CN102299187A CN 201010209357 CN201010209357A CN102299187A CN 102299187 A CN102299187 A CN 102299187A CN 201010209357 CN201010209357 CN 201010209357 CN 201010209357 A CN201010209357 A CN 201010209357A CN 102299187 A CN102299187 A CN 102299187A
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- solar battery
- battery cell
- pliability
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- type semiconductor
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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
Abstract
The invention relates to a flexible solar cell device. The flexible solar cell device comprises a light transmission substrate, a light transmission panel arranged opposite to the light transmission substrate, a plurality of first solar cell units, a plurality of second solar cell units and an insulated spacer with light transmission property. The first solar cell units and the second solar cell units are alternately arranged between the light transmission substrate and the light transmission panel at intervals along the extending direction of the light transmission panel. The first solar cell units and the adjacent second solar cell units are spaced by the insulated spacer. The thickness of the first solar cell units and the second solar cell units is less than or equal to 50 microns. Through the device, good flexibility can be ensured, and meanwhile, a glass window attached with the solar cell can keep good light transmission property.
Description
Technical field
The present invention relates to a kind of solar battery technology, relate in particular to a kind of pliability solar battery apparatus.
Background technology
The solar battery cell structure mainly comprises transparent substrates, is located at the P type semiconductor material layer and the N type semiconductor material layer of transparent substrates.Solar battery cell is mainly used photoelectricity transformation principle, changes the radiant energy photon of the sun into electric energy by semiconductor substance.Particularly, when solar irradiation is incident upon semiconductor, a part of photon is fallen by surface reflection, and the remainder photon is absorbed by semiconductor or sees through.Absorbed photon, a part becomes heat energy, and another part photon then with forming semi-conductive valence electron collision, produces electron-hole pair.So, luminous energy is electric energy with the formal transformation that produces electron-hole pair just, and in P type and N type interface both sides formation potential barrier electric field, electronics is driven to the N district, drive to the P district in the hole, thereby make the N district that excess electron be arranged, there is excess holes in the P district, forms the photoproduction electric field opposite with the potential barrier direction of an electric field near the P-N knot.The part of photoproduction electric field also makes P type layer positively charged except that offsetting the potential barrier electric field, n type semiconductor layer is electronegative, and the thin layer between N district and P district produces so-called photovoltage electromotive force.If from P type layer and n type semiconductor layer weld metal lead-in wire, connect load respectively, then external circuit just has electric current to pass through.
The pliability solar cell generally is to use dyestuff sensitization solar cell, organic compound solar cell or high molecular polymer solar cell.But, owing to organic or macromolecular compound dyestuff easily because high temperature or because solar radiation makes its material cracking make lifetime, and the photoelectric conversion efficiency of these materials is not high.
In the prior art, use semi-conducting material can increase life-span of pliability solar cell, still since the characteristic of semi-conducting material absorption spectrum or thickness caused can't printing opacity and pliability poor.In daily life, be arranged at outdoor windowpane and generally be used for daylighting, sentence absorbing light so usually solar cell is attached at this windowpane, problem to be solved is arranged but how to make the windowpane that is pasted with this solar cell still can keep good light transmittance to become.
Summary of the invention
In view of this, be necessary to provide a kind of pliability solar battery apparatus that good pliability has light transmission simultaneously that has.
A kind of pliability solar battery apparatus, it comprise transparent substrates, with light penetrating panel, a plurality of first solar battery cell, a plurality of second solar battery cell of this transparent substrates relative spacing setting and insulation gap body with light transmission.This first solar battery cell and this second solar battery cell are located between this transparent substrates and the light penetrating panel along the bearing of trend alternate intervals of this light penetrating panel.This first solar battery cell and adjacent second solar battery cell are separated by this insulation gap body.The thickness of this first solar battery cell and this second solar battery cell is less than or equal to 50 microns.
Compared with prior art, the thickness of each of the embodiment of the invention first solar battery cell and each second solar battery cell is less than or equal to 50 microns, can guarantee good pliability, and each first solar battery cell and adjacent second solar battery cell are separated by the insulation gap body with light transmission, so, can make the windowpane that is pasted with this solar cell still can keep good light transmittance.
Description of drawings
The schematic diagram of the pliability solar battery apparatus that Fig. 1 provides for first embodiment of the invention.
The schematic diagram of the pliability solar battery apparatus that Fig. 2 provides for second embodiment of the invention.
The schematic diagram of the pliability solar battery apparatus that Fig. 3 provides for third embodiment of the invention.
The schematic diagram of the pliability solar battery apparatus that Fig. 4 provides for four embodiment of the invention.
The main element symbol description
Pliability solar battery apparatus 100,200,300,400
Transparent substrates 10,210,310,410
First circuit layer 20,220,320,420
First solar battery cell 30,230,330,430
Second solar battery cell 70,270,370,470
Insulation gap body 40,240,340,440
Second circuit layer 50,250,350,450
Light penetrating panel 60,260,360,460
First back electrode 31,231
P type semiconductor layer 32,72,232,272
P-N transition zone 33,73,233,273
N type semiconductor layer 34,74,234,274
Electrode 35,235 before first
Second back electrode 71,271
Electrode 75,275 before second
Transparent surface 361,461
Light focusing unit 362,462
Side face 464
Embodiment
For pliability solar battery apparatus of the present invention is described further, lifts following execution mode and conjunction with figs. and be elaborated.
Referring to Fig. 1, the pliability solar battery apparatus 100 that the technical program one execution mode provides comprises transparent substrates 10, first circuit layer 20, a plurality of first solar battery cell 30, a plurality of second solar battery cell 70, insulation gap body 40, second circuit layer 50 and light penetrating panel 60 parallel with this transparent substrates 10 and that be oppositely arranged.
This transparent substrates 10 has high-termal conductivity.This transparent substrates 10 can be polymer flake.The material of polymer can be PETG, Merlon, polymethyl methacrylate etc.
This first circuit layer 20 is fixed in this transparent substrates 10.This second circuit layer 50 is fixed in this light penetrating panel 60.This first circuit layer 20 and this second circuit layer 50 are transparency electrode.This first circuit layer 20 and this second circuit layer 50 can be respectively directly spray electric conducting material in this transparent substrates 10 and this light penetrating panel 60 until forming required pattern by gunite, or utilize conductive sheet metal to make required stratiform pattern in advance by etching method, after be individually fixed in this transparent substrates 10 and this light penetrating panel 60.
These a plurality of first solar battery cells 30 and this a plurality of second solar battery cells 70 are and are fixed in array between this first circuit layer 20 and this second circuit layer 50, and each first solar battery cell 30 and one second solar battery cell 70 replace arrangement along the bearing of trend of this light penetrating panel 60.Apart from more than or equal to 0.5 millimeter, separate between each first solar battery cell 30 and adjacent second solar battery cell 70 by this insulation gap body 40.This insulation gap body 40 is the soft light material, as polymethyl methacrylate etc.
Wherein, the thickness of each first solar battery cell 30 and each second solar battery cell 70 is less than or equal to 50 microns.The integral thickness of this pliability solar battery apparatus 100 is less than or equal to 500 microns, and preferably, the integral thickness of this pliability solar battery apparatus 100 is less than or equal to 100 microns.The area of each first solar battery cell 30 and each second solar battery cell 70 is less than or equal to 1 square millimeter.So, can increase the pliability of this pliability solar battery apparatus 100.
This first solar battery cell 30 comprises that one is arranged at first back electrode 31 on this first circuit layer 20, stacks gradually the p type semiconductor layer 32 in first back electrode 31, P-N transition zone 33, electrode 35 before the n type semiconductor layer 34 and first.
The material of this p type semiconductor layer 32 can be associativity III-V compounds of group, II-VI compounds of group, I-III-VI compounds of group preferably, or IV family material, as materials such as cadmium telluride, copper indium diselenide, silicon, germanium, as P type amorphous silicon material, be in particular P type hydrogeneous amorphous silicon material, InGaN or aluminum gallium arsenide.
Preferably, the material of p type semiconductor layer 32 is a P type amorphous silicon material.Amorphous silicon material is stronger about 500 times than crystalline silicon material to the absorbability of light, so the photonic absorption amount is being required under the identical situation, the thickness of the semiconductor layer that the thickness of the semiconductor layer that amorphous silicon material is made is made much smaller than crystalline silicon material, and amorphous silicon material is lower to the requirement of transparent substrates material.So adopt amorphous silicon material not only can save wide variety of materials, also make the large-area solar battery cell of making become possibility.
The material of this P-N transition zone 33 can be associativity III-V compounds of group, II-VI compounds of group, I-III-VI compounds of group preferably, or IV family material, as materials such as cadmium telluride, copper indium diselenide, silicon, germanium.The material of this P-N transition zone 33 also can be Copper Indium Gallium Selenide.This P-N transition zone 33 be used for photon conversion become electronics-hole to and form the potential barrier electric field.This P-N transition zone 33 helps to improve the stability and the photoelectric conversion efficiency of this first solar battery cell 30.This P-N transition zone 33 can form by long-pending method in chemical gaseous phase Shen or sputtering method.
The material of this n type semiconductor layer 34 can be N type amorphous silicon material, is in particular the hydrogeneous amorphous silicon material of N type.The material of this n type semiconductor layer 34 also can be associativity III-V compounds of group, II-VI compounds of group, I-III-VI compounds of group preferably, or IV family material, as materials such as cadmium telluride, copper indium diselenide, silicon, germanium.
This first preceding electrode 35 is formed at n type semiconductor layer 34, and is fixed in this second circuit layer 50.Enter this n type semiconductor layer 34 for ease of seeing through most of sunlight, improve phototranstormation efficiency, this first preceding electrode 35 is preferably transparency electrode, and it forms nurse difficult to understand with this n type semiconductor layer 34 and contacts.This before first electrode 35 be flexible transparent materials, as indium tin oxide etc.Electrode 35 links to each other with the both positive and negative polarity of a power storage devices (figure does not show) respectively before this first back electrode 31 and this first, stores the electric energy after the opto-electronic conversion thus.
This second solar battery cell 70 comprises that one is arranged at electrode 75 before second on this first circuit layer 20, stacks gradually in n type semiconductor layer 74, P-N transition zone 73, the p type semiconductor layer 72 of this electrode 75 before second, reaches second back electrode 71.
The p type semiconductor layer 32 of this first solar battery cell 30 is connected to this first circuit layer 20 by this first back electrode 31, and the n type semiconductor layer 74 of this second solar battery cell 70 is connected to this first circuit layer 20 by this second preceding electrode 75.Be appreciated that, at this moment, the n type semiconductor layer 34 of this first solar battery cell 30 is connected to this second circuit layer 50 by the first preceding electrode 35, the p type semiconductor layer 72 of this second solar battery cell 70 is connected to this second circuit layer 50 by this second back electrode 71, and these a plurality of first solar battery cells 30 and these a plurality of second solar battery cells 70 are connected mutually thus.
This light penetrating panel 60 is a flexible transparent materials, as PETG, polymethyl methacrylate etc.
When this pliability solar battery apparatus 100 of encapsulation, need will these a plurality of first solar battery cells 30 and this a plurality of second solar battery cells 70 alternately be welded in this transparent substrates 10 that is fixed with first circuit layer 20, and the spacing that makes each first solar battery cell 30 and adjacent second solar battery cell 70 is filled up this insulation gap body 40 greater than 1 millimeter in spacing.Again, the light penetrating panel 60 that is fixed with second circuit layer 50 is hidden all first solar battery cells 30, all second solar battery cell 70 and insulation gap bodies 40 fully, and first preceding electrode 35 of each first solar battery cell 30 and second back electrode 71 of each second solar battery cell 70 are all linked to each other with this second circuit layer 50.Certainly, also can be on this transparent substrates 10 stacked this first circuit layer 20, these a plurality of first solar battery cells 30, these a plurality of second solar battery cells 70, this second circuit layer 50 and this light penetrating panel 60.
Compared to prior art, the pliability solar battery apparatus 100 that present embodiment provides is abandoned lead, conducts all solar battery cells by first circuit layer 20 and the second circuit layer 50 of being located at this transparent substrates 10 and this light penetrating panel 60 respectively.Compared to lead, this first circuit layer 20 and this second circuit layer 50 are stratiform, and both are separated by these a plurality of first solar battery cells 30 and this second solar battery cell 70, are difficult to contact, and avoid short circuit thus.
Be appreciated that this first solar battery cell 30 and this second solar battery cell 70 can be other structure, PIN structure as common in the art, wherein, the I layer can be DH double-heterostructure, MQD multiple quantum trap structure or the multiple quantum-dot structure of MQD.At this moment, this I layer need close on this light penetrating panel 60.This first solar battery cell 30 and this second solar battery cell 70 also can be common multi-junction solar cells unit, this area.At this moment, the high energy belt of this first solar battery cell 30 and this second solar battery cell 70 need close on this light penetrating panel 60, can be with that low layer is far away more from this light penetrating panel 60 more.
See also Fig. 2, compare with first execution mode, the pliability solar battery apparatus 200 that the technical program second execution mode provides has analog structure, comprises transparent substrates 210, first circuit layer 220, a plurality of first solar battery cell 230, a plurality of second solar battery cell 270, insulation gap body 240, second circuit layer 250 and light penetrating panel 260.Wherein, this transparent substrates 210 and this light penetrating panel 260 can be made with pet material.
This first solar battery cell 230 comprises that one is arranged at first back electrode 231 of this first circuit layer 220, stacks gradually the p type semiconductor layer 232 in first back electrode 231, P-N transition zone 233, electrode 235 before the n type semiconductor layer 234 and first.P type semiconductor layer 232 is thinner than n type semiconductor layer 234.This second solar battery cell 270 comprises second back electrode 271 that is arranged at this first circuit layer 220, stacks gradually the p type semiconductor layer 272 in second back electrode 271, P-N transition zone 273, electrode 275 before the n type semiconductor layer 274 and second.
Referring to Fig. 3, compare with first execution mode, the pliability solar battery apparatus 300 that the technical program the 3rd execution mode provides has similar structures, comprises transparent substrates 310, first circuit layer 320, a plurality of first solar battery cell 330, a plurality of second solar battery cell 370, insulation gap body 340, second circuit layer 350, light penetrating panel 360 and insulating barrier 380.Wherein, this transparent substrates 310 and this light penetrating panel 360 can be made with pet material.
The insulating barrier 380 and first circuit layer 320 stack gradually in transparent substrates 310.These a plurality of first solar battery cells 330 and a plurality of second solar battery cell 370 are in series by first circuit layer 320 and second circuit layer 350.So, can provide bigger operating voltage.
Referring to Fig. 4, compare with first execution mode, the pliability solar battery apparatus 400 that the technical program the 4th execution mode provides has similar structures, comprises transparent substrates 410, first circuit layer 420, a plurality of first solar battery cell 430, a plurality of second solar battery cell 470, insulation gap body 440, second circuit layer 450 and light penetrating panel 460.Wherein, this transparent substrates 410 and this light penetrating panel 460 can be made with pet material.
Transparent surface 461 surfaces of light penetrating panel 460 are provided with a plurality of and all solar battery cells light focusing unit 462 one to one.Each light focusing unit 462 comprises the tapered protrusion of a plurality of array arrangements, and each protruding side face 464 forms 45 degree to 70 degree angles with this transparent surface 461.So, can avoid causing photoelectric conversion rate significantly to reduce because of the variation of angle of incidence of light degree.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection range that all should belong to claim of the present invention with distortion.
Claims (10)
1. pliability solar battery apparatus, it comprises transparent substrates, light penetrating panel with this transparent substrates relative spacing setting, a plurality of first solar battery cells and a plurality of second solar battery cell, it is characterized in that, this first solar battery cell and this second solar battery cell are located between this transparent substrates and the light penetrating panel along the bearing of trend alternate intervals of this light penetrating panel, this pliability solar battery apparatus also comprises the insulation gap body with light transmission, this first solar battery cell and adjacent second solar battery cell are separated by this insulation gap body, and the thickness of this first solar battery cell and this second solar battery cell is less than or equal to 50 microns.
2. pliability solar battery apparatus as claimed in claim 1 is characterized in that: the integral thickness of this pliability solar battery apparatus is less than or equal to 100 microns.
3. pliability solar battery apparatus as claimed in claim 1 is characterized in that: this insulation gap body is a flexible material.
4. pliability solar battery apparatus as claimed in claim 1, it is characterized in that: this pliability solar battery apparatus also comprises first circuit layer and second circuit layer, this first solar battery cell comprises that one is arranged at first back electrode on this first circuit layer, stack gradually in the p type semiconductor layer of first back electrode, the P-N transition zone, electrode before the n type semiconductor layer and first, this second solar battery cell comprise that one is arranged at the preceding electrode of second on this first circuit layer, stack gradually in the n type semiconductor layer of this electrode before second, the P-N transition zone, the p type semiconductor layer and second back electrode.
5. pliability solar battery apparatus as claimed in claim 4, it is characterized in that: this first circuit layer and second circuit layer are individually fixed in this transparent substrates and this light penetrating panel, the n type semiconductor layer of this first solar battery cell is connected to this second circuit layer by the first preceding electrode, the p type semiconductor layer of this second solar battery cell is connected to this second circuit layer by this second back electrode, and these a plurality of first solar battery cells and these a plurality of second solar battery cells are connected mutually.
6. pliability solar battery apparatus as claimed in claim 4, it is characterized in that: the p type semiconductor layer of this first solar battery cell is connected to this first circuit layer by this first back electrode, the p type semiconductor layer of this second solar battery cell is connected to this first circuit layer by second back electrode, the second preceding electrode of the first preceding electrode of this first solar battery cell and this second solar battery cell all links to each other with the second circuit layer, and these a plurality of first solar battery cells and these a plurality of second solar battery cells are parallel with one another.
7. pliability solar battery apparatus as claimed in claim 1 is characterized in that: the spacing of each first solar battery cell and adjacent second solar battery cell is greater than 1 millimeter.
8. pliability solar battery apparatus as claimed in claim 7, it is characterized in that: the surface of this light penetrating panel or this transparent substrates is provided with a plurality of light focusing unit spaced apart from each other, and each light focusing unit is corresponding with one first solar battery cell or one second solar battery cell.
9. pliability solar battery apparatus as claimed in claim 8 is characterized in that: this each light focusing unit has circular-arc caustic surface.
10. pliability solar battery apparatus as claimed in claim 8 is characterized in that: this each light focusing unit comprises the tapered protrusion of a plurality of array arrangements, and the side face that each is protruding and this transparent surface form 45 degree to 70 degree angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010209357 CN102299187A (en) | 2010-06-25 | 2010-06-25 | Flexible solar cell device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010209357 CN102299187A (en) | 2010-06-25 | 2010-06-25 | Flexible solar cell device |
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|---|---|
| CN102299187A true CN102299187A (en) | 2011-12-28 |
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| CN 201010209357 Pending CN102299187A (en) | 2010-06-25 | 2010-06-25 | Flexible solar cell device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115283A (en) * | 2011-12-09 | 2014-10-22 | Lg伊诺特有限公司 | Solar cell module and method of fabricating the same |
| CN104701402A (en) * | 2013-12-09 | 2015-06-10 | 聚日（苏州）科技有限公司 | Series connection type solar cell and forming method thereof |
| JP2020516080A (en) * | 2017-04-03 | 2020-05-28 | ザ ジョンズ ホプキンス ユニバーシティ | Flexible integrated concentrator for solar cells |
| SE2151430A1 (en) * | 2021-11-24 | 2023-05-25 | Epishine Ab | A solar cell module and a solar cell panel |
-
2010
- 2010-06-25 CN CN 201010209357 patent/CN102299187A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115283A (en) * | 2011-12-09 | 2014-10-22 | Lg伊诺特有限公司 | Solar cell module and method of fabricating the same |
| CN104701402A (en) * | 2013-12-09 | 2015-06-10 | 聚日（苏州）科技有限公司 | Series connection type solar cell and forming method thereof |
| CN104701402B (en) * | 2013-12-09 | 2017-10-10 | 聚日（苏州）科技有限公司 | A kind of serial solar energy battery and forming method thereof |
| JP2020516080A (en) * | 2017-04-03 | 2020-05-28 | ザ ジョンズ ホプキンス ユニバーシティ | Flexible integrated concentrator for solar cells |
| SE2151430A1 (en) * | 2021-11-24 | 2023-05-25 | Epishine Ab | A solar cell module and a solar cell panel |
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Application publication date: 20111228 |