EP2457255A2 - Thin-layer solar module having improved interconnection of solar cells and method for the production thereof - Google Patents
Thin-layer solar module having improved interconnection of solar cells and method for the production thereofInfo
- Publication number
- EP2457255A2 EP2457255A2 EP10742782A EP10742782A EP2457255A2 EP 2457255 A2 EP2457255 A2 EP 2457255A2 EP 10742782 A EP10742782 A EP 10742782A EP 10742782 A EP10742782 A EP 10742782A EP 2457255 A2 EP2457255 A2 EP 2457255A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- recess
- thin
- electrode layer
- solar module
- film solar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 21
- 239000004065 semiconductor Substances 0.000 claims abstract description 51
- 239000000758 substrate Substances 0.000 claims abstract description 42
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 239000010409 thin film Substances 0.000 claims description 56
- 239000000463 material Substances 0.000 description 11
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- 238000004544 sputter deposition Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910006404 SnO 2 Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910004613 CdTe Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- -1 IVV compound Chemical class 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- ZOCHARZZJNPSEU-UHFFFAOYSA-N diboron Chemical compound B#B ZOCHARZZJNPSEU-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/202—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials including only elements of Group IV of the Periodic System
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
- H01L31/046—PV modules composed of a plurality of thin film solar cells deposited on the same substrate
- H01L31/0463—PV modules composed of a plurality of thin film solar cells deposited on the same substrate characterised by special patterning methods to connect the PV cells in a module, e.g. laser cutting of the conductive or active layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
- H01L31/046—PV modules composed of a plurality of thin film solar cells deposited on the same substrate
- H01L31/0465—PV modules composed of a plurality of thin film solar cells deposited on the same substrate comprising particular structures for the electrical interconnection of adjacent PV cells in the module
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- Thin-film solar module with improved interconnection of solar cells and method for its production Thin-film solar module with improved interconnection of solar cells and method for its production
- the invention relates to a thin-film solar module with improved interconnection of solar cells and to a method for its production.
- the invention relates to a thin-film solar module which contains a plurality of interconnected solar cells, wherein the thin-film solar module or the solar cell comprises a substrate, a first electrode layer, a semiconductor layer and a second electrode layer.
- thin-film solar modules in which the semiconducting layer is comparatively thin.
- This layer consists for example of amorphous silicon. Because little material is needed, such thin-film solar modules are comparatively cheap.
- a problem with the application of thin-film solar modules is the still insufficient energy efficiency. That is, the incident solar radiation is used insufficiently.
- EP 0 749 161 B1 discloses an integrated thin-film solar battery comprising several series-connected elements, comprising: a substrate; more preferably, transparent conductive oxide electrode layers are divided into multiple regions and formed on the substrate; a plurality of laminates each having a semiconductor layer and a first electrically conductive layer of a transparent metal oxide material laminated on the semiconductor layer, disposed on the first electrode layers so that each of the laminates is formed on two adjacent first electrodes and a connection opening on one of the first two electrodes has, the first being electric conducting damage does not occur in the case of the connection opening; and second electrode layers of metallic material disposed on each of the laminates in a state in which the second electrode layers are electrically connected to one of the first electrode layers through the connection opening, around a region interposed between the second electrode layer and the other first electrode layer Form element unit.
- Embodiments of the thin-film solar module according to the invention s i n d i n corresponding dependent claims listed.
- Preferred embodiments of the thin-film solar module according to the invention correspond to preferred embodiments of the method according to the invention and vice versa, although this is not explicitly stated herein.
- the invention thus relates to a thin-film solar module which contains a plurality of interconnected solar cells, comprising in the order given the layers
- first electrode layer at least a first non-linear recess is arranged and in the second electrode layer and in the semiconductor layer, a second non-linear recess is arranged, wherein a first projection of the first nonlinear recess on the substrate and a second projection of the second nonlinear recess on the Cut or touch the substrate in at least two projection points,
- the thin-film solar module has at least one island-shaped contact region extending over the layers (a) to (d) in a direction vertical to the substrate, and in FIG a direction parallel to the substrate by the first projection and the second projection is limited, and wherein in the semiconductor layer within the island-shaped contact region is a third recess which is filled with an electrically conductive material, and
- a fourth recess extends through at least two island-shaped contact areas through the first electrode layer, the semiconductor layer and the second electrode layer.
- thin film solar module means, in particular, a thin film solar module in which a semiconductor layer is thinner than the substrate.
- the first projection and the second projection may have several points or sections in common.
- the first projection and the second projection intersect or touch in exactly two projection points.
- the first non-linear recess and the second non-linear recess may have different shapes.
- the first non-linear recess may consist of second nonlinear recesses, which may be intersecting or intersecting recess areas.
- the first and the second non-linear recess consist of one or more curved curves with a uniform or along the curve varying radius of curvature.
- any combinations of linear and curved sections are possible for the first non-linear recess as well as for the second non-linear recess.
- the island-shaped contact areas, in particular their projections onto the substrate, can therefore have very different shapes.
- the first non-linear recess and / or the second non-linear recess consist of two linear regions which intersect or contact each other in a recess intersection.
- the area e of the island-shaped contact area in the thin-film solar module is not limited in terms of the invention.
- the contact area in a direction parallel to the substrate has an area in the range of 0.01 to 3 mm 2 .
- the fourth recess is preferably arranged between two projection points of adjacent island-shaped contact regions.
- the fourth recess extends in the direction of the connecting line of two projection points of the same island-shaped contact region.
- a plurality of fourth recesses are arranged parallel to one another.
- the fourth recess is linear. This means in particular that a projection of the fourth recess onto the substrate represents a straight line.
- the fourth recess connects the projection points of two adjacent island-shaped contact areas.
- a third electrically conductive layer which is different from the second electrode layer is arranged between the semiconductor layer and the second electrode layer.
- the material of the third electrically conductive layer is preferably a transparent electrically conductive material which consists of a metal oxide material, for example SnO 2 , ZnO or ITO. A laminate of these materials can also be used.
- the first electrode layer and the second electrode layer may be constructed of the same or different electrically conductive materials.
- the selection of electrically conductive materials is not limited; Both inorganic materials, in particular metals, and organic materials, in particular electrically conductive polymers, can be used.
- at least the first electrode layer is transparent.
- tin oxide (SnO 2 ), zinc oxide (ZnO) or indium-tin oxide (ITO) are suitable as the transparent electrically conductive material for the first and / or second electrode layers in preferred embodiments of the thin-film solar module according to the invention.
- Suitable metallic materials for the first and / or second electrode layer are, for example, aluminum (AI), silver (Ag) or chromium (Cr).
- the material of the semiconductor layer is not limited according to the invention, insofar as it can be used to convert solar energy into electrical energy in a thin-film solar module.
- the primary material of the semiconductor layer may be not only amorphous silicon hydride but also amorphous silicon, polycrystalline or microcrystalline silicon, or a combination thereof.
- silicon may be represented by silicon carbide, silicon germanium, germanium, an IVV compound (eg, GaAs, InP and their derived alloys and compounds), an II-VI compound (eg, CdTe or CuInSe 2 ), an I-III -Vl-connection oa be replaced. Furthermore, it may be replaced by a combination of these compounds.
- the thin-film solar module of the present invention a plurality of solar cells are connected in series or in parallel on a single substrate.
- the surface of the thin-film solar module is not limited according to the invention.
- the invention also provides a method for producing a thin-film solar module according to the present invention, comprising the steps:
- a first transparent electrode layer is preferably formed on the substrate in step (a1).
- step (c1) a semiconductor layer filling the first nonlinear recess is formed on the first electrode layer.
- a laser is used in the method according to the invention for producing the first, second, third and / or fourth recess.
- a suitable deposition technique such as a CVD technique, sputtering technique, and patterned, for example, by etching or laser radiation.
- the thin-film solar module according to the invention and the method for its production have numerous advantages.
- the thin-film solar module according to the invention has a simple structure and can be produced in a simple and thus economical manner. Due to a significantly increased proportion of the surface usable for the conversion of solar energy into electrical energy, the thin-film solar module of the present invention has a significantly increased efficiency.
- the present invention enables production of thin-film solar modules, in which the demands on the accuracy of the positions of the recesses are reduced. The present invention will be explained in more detail below with reference to a preferred embodiment of a thin-film solar module according to the invention, which is shown in FIGS. 1 and 2 and is not intended to be restrictive.
- Fig. 1 shows schematically a plan view of an inventive thin-film solar module.
- FIG. 2 schematically shows a cross section through the thin-film solar module of FIG. 1.
- FIG. 1 shows a thin-film solar module 1 with a plurality of solar cells 2 connected in series.
- the thin-film solar module 1 has a number of island-shaped contact areas 11, in each of which two solar cells 2 are connected to one another.
- Substrate vertical direction over the layers of substrate 3 e.g., a glass substrate
- Electrode layer, semiconductor layer, and second electrode layer In a direction parallel to the substrate 3, the island-shaped contact region 11 is represented by a first projection 9 of a nonlinear recess (not shown) in the first electrode layer and a second projection 10 of a second non-linear recess (not shown) in FIG.
- the semiconductor layer not shown in detail here, within the island-shaped contact region 11, there is a third recess 12, which is filled with an electrically conductive material.
- a fourth recess 20 extends linearly between projection points 14 and 15 of adjacent island-shaped contact regions 11.
- the first non-linear recess 7 and / or the second non-linear recess 8 consist of two linear regions 16, 17, 18, 19 intersecting in a recess intersection 13. The linear regions intersecting in a recess intersection point 13 in this case extend only slightly beyond the recess intersection point 13.
- Fig. 1 illustrates the part of the surface of a thin-film solar module which is not available for conversion of solar energy into electrical energy, the so-called “dead area”.
- Fig. 1 illustrates that with the present invention a significant reduction of the dead area can be achieved ("dead area reduction").
- FIG. 2 schematically shows a cross section through the thin-film solar module of FIG. 1 in the direction of a recess 20.
- the thin-film solar module 1 contains a plurality of solar cells 2 connected in series, two of which are interconnected in contact areas 11.
- the island structure of the contact areas 1 1 is not apparent in this cross-sectional view.
- the island-shaped contact areas 11 extend in a direction vertical to a substrate 3 over the substrate 3, a first electrode layer 4, a semiconductor layer 5 and a second electrode layer 6.
- a third recess 12 which is filled with an electrically conductive material.
- a fourth recess 20 extends linearly between projection points, not visible in this illustration, of adjacent island-shaped contact regions. In the cross-sectional view shown in FIG. 2, the fourth recess 20 lies in the same direction as the third recess 12.
- a plurality of semiconductor layers 5 are arranged on a plurality of first electrode layers 4, which are divided into a plurality of regions on the substrate 3 such that each of the semiconductor layers 5 is formed on two adjacent first electrode layers 4 and a first non-linear recess 7 on one of the first electrode layers 4 has.
- a third electrically conductive layer 21 is in a range except of the first nonlinear recess 7 is formed on each of the semiconductor layers 5.
- the third electrically conductive layer 21 may be omitted.
- a second electrode layer 6 is disposed on each of the third electrically conductive layers 21 so that the second electrode layer 6 is electrically connected to one of the two first electrode layers 4 through the first nonlinear recess 7, whereby one between the second Electrode layer 6 and the other first electrode layer 4 inserted region is formed as a solar cell 2.
- the above-described thin-film solar module can be prepared by a preferred method described below in more detail in accordance with the present invention.
- a transparent electrically conductive layer made of a transparent electrically conductive material such as SnO 2 , ZnO or ITO is deposited as a first electrode layer 4 on the substrate 3 (glass substrate 3).
- the first electrode layer 4 is then the
- the laser was guided nonlinearly by the laser being first guided linearly in a first direction and then in a second direction deviating from the first direction.
- Electrode layer 4 for example, a value in the range of 5 to 30 ohms. Thereafter, the first electrode layer 4 is cleaned to remove the portions of the first electrode layer melted by the laser scribing.
- an amorphous silicon hydride layer having a pin structure is deposited on the entire surface of the first electrode layers 4 formed in correspondence with the power generation areas.
- the amorphous Siliciumhydrid harsh example can be formed by having the substrate 3 in a high vacuum chamber with a pressure of 10 "5 Torr (about 1, 33 x 10" 3 Pa) is added or less and then silane (SiH 4), diborane ( B 2 H 6 ) and methane as film-forming gases at a substrate temperature of 140 to 200 0 C are initiated.
- the reaction pressure is set, for example, to 1, 0 Torr and p-type amorphous silicon hydride carbide with a layer thickness of 5 to 20 nm by RF discharge deposited.
- silane is introduced into the chamber, the reaction pressure adjusted to 0.2 to 0.7 Torr and deposited i-type amorphous silicon hydride in a layer thickness of 300 nm by H F-discharge.
- silane (SiH 4 ), phosphine (PH 3 ) and hydrogen H 2 are introduced into the chamber to form a thin layer of n-type microcrystalline silicon.
- the reaction pressure is adjusted to about 1.0 torr and n-type microcrystalline silicon is deposited in a thickness of 10 to 20 nm by RF discharge.
- a third electrically conductive layer 21 is deposited on the semiconductor layer (s) 5 by means of a sputtering technique without performing an upstream cleaning process.
- the substrate 3 on which the semiconductor layer 5 is deposited is placed in a sputtering chamber in which a high vacuum is adjusted with a maximum pressure of 1 x 10 "6 torr.
- Argon (Ar) is introduced as the sputtering gas into the sputtering chamber, after which ZnO doped with alumina Al 2 O 3 is deposited in a thickness of 80 to 100 nm under a pressure of 1 to 5 ⁇ 10 -3 Torr by RF discharge.
- the semiconductor layer 5 and the third electrically conductive layer 21 are simultaneously melted by a laser scribing technique and third recesses 12 are created so as to produce a plurality of third recesses 12 adjacent to first non-linear recesses 7 of the first electrode layer 3.
- a metal such as Al, Ag, Cr oa is applied to the third electroconductive layers 21 as the second electrode layer 6 by a sputtering technique or a vacuum vapor deposition technique as already described deposited.
- first electrode layer 4, the second electrode layer 6, the third electrically conductive layer 21 and the semiconductor layer 4 (here an n-type microcrystalline silicon layer) between two contact areas 1 1 are removed by a laser scribing technique, so that fourth recesses 20 are formed lie in the cross-sectional view of Fig. 2 on the third recesses 12.
- the fourth recesses 20 extend between two projection points 14, 15 of adjacent insular contact regions 11.
- Electrode layer 6 is thereby divided into a plurality of power generation areas. in the
- a plurality of solar cells 2 are obtained on the substrate 3, each of which consists of one between the first electrode layer 4 and the second electrode layer 6 inserted region, and are connected to each other in series.
- the solar cells 2 are then cleaned to remove the remnants melted and separated by laser scribing. Possibly.
- a suitable passivation layer for example of epoxy resin, is applied to the thin-film solar module.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009027852A DE102009027852A1 (en) | 2009-07-20 | 2009-07-20 | Thin-film solar module with improved interconnection of solar cells and method for its production |
PCT/EP2010/060481 WO2011009860A2 (en) | 2009-07-20 | 2010-07-20 | Thin-layer solar module having improved interconnection of solar cells and method for the production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2457255A2 true EP2457255A2 (en) | 2012-05-30 |
Family
ID=43383736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10742782A Withdrawn EP2457255A2 (en) | 2009-07-20 | 2010-07-20 | Thin-layer solar module having improved interconnection of solar cells and method for the production thereof |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120204930A1 (en) |
EP (1) | EP2457255A2 (en) |
CN (1) | CN102473711B (en) |
DE (1) | DE102009027852A1 (en) |
IN (1) | IN2012DN00394A (en) |
WO (1) | WO2011009860A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107210372B (en) * | 2014-12-23 | 2020-02-28 | 荷兰应用自然科学研究组织 Tno | Method of manufacturing an interconnected solar cell array |
US10741703B2 (en) * | 2016-07-29 | 2020-08-11 | Sunpower Corporation | Shingled solar cells overlapping along non-linear edges |
DE102017122530B4 (en) * | 2017-09-28 | 2023-02-23 | Helmholtz-Zentrum Berlin für Materialien und Energie Gesellschaft mit beschränkter Haftung | Photovoltaic module with interlocking contacts on the back |
EP3573110A1 (en) * | 2018-05-25 | 2019-11-27 | (CNBM) Bengbu Design & Research Institute for Glass Industry Co., Ltd. | Solar module with increased aperture |
DE102020203510A1 (en) | 2020-03-19 | 2021-09-23 | NICE Solar Energy GmbH | Thin film solar module and manufacturing process |
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JPS61265872A (en) * | 1985-05-21 | 1986-11-25 | Fuji Electric Co Ltd | Solar cell |
US4755475A (en) * | 1986-02-18 | 1988-07-05 | Sanyo Electric Co., Ltd. | Method of manufacturing photovoltaic device |
JPH01152769A (en) * | 1987-12-10 | 1989-06-15 | Mitsubishi Electric Corp | Photoelectric transducer |
JP3653800B2 (en) | 1995-06-15 | 2005-06-02 | 株式会社カネカ | Method for manufacturing integrated thin film solar cell |
US6265652B1 (en) * | 1995-06-15 | 2001-07-24 | Kanegafuchi Kagaku Kogyo Kabushiki Kabushiki Kaisha | Integrated thin-film solar battery and method of manufacturing the same |
JPH11312816A (en) * | 1998-04-30 | 1999-11-09 | Kanegafuchi Chem Ind Co Ltd | Integrated thin-film solar cell module |
DE19934560B4 (en) * | 1999-07-22 | 2005-12-22 | Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg | Photovoltaic module with integrated series-connected cells and manufacturing method thereof |
US20040219801A1 (en) * | 2002-04-25 | 2004-11-04 | Oswald Robert S | Partially transparent photovoltaic modules |
DE10109643B4 (en) * | 2001-02-27 | 2005-10-27 | Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg | Thin-film photovoltaic module of several sub-modules and manufacturing method thereof |
EP1253644A1 (en) * | 2001-04-23 | 2002-10-30 | Diego Dr. Fischer | Electric power generating device and method of fabrication |
KR20070101917A (en) * | 2006-04-12 | 2007-10-18 | 엘지전자 주식회사 | Thin-film solar cell and fabrication method thereof |
TWI330891B (en) * | 2006-12-29 | 2010-09-21 | Ind Tech Res Inst | Thin film solar cell module of see-through type |
JP5210579B2 (en) * | 2007-09-14 | 2013-06-12 | 三菱重工業株式会社 | Photoelectric conversion device and manufacturing method thereof |
DE102008014258B4 (en) * | 2008-03-13 | 2009-10-29 | Schott Solar Gmbh | Process for forming the dividing lines of a photovoltaic module with series-connected cells |
US20100126559A1 (en) * | 2008-11-26 | 2010-05-27 | Applied Materials, Inc. | Semi-Transparent Thin-Film Photovoltaic Modules and Methods of Manufacture |
-
2009
- 2009-07-20 DE DE102009027852A patent/DE102009027852A1/en not_active Ceased
-
2010
- 2010-07-20 US US13/384,987 patent/US20120204930A1/en not_active Abandoned
- 2010-07-20 CN CN201080033036.XA patent/CN102473711B/en active Active
- 2010-07-20 WO PCT/EP2010/060481 patent/WO2011009860A2/en active Application Filing
- 2010-07-20 EP EP10742782A patent/EP2457255A2/en not_active Withdrawn
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2012
- 2012-01-13 IN IN394DEN2012 patent/IN2012DN00394A/en unknown
Non-Patent Citations (1)
Title |
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See references of WO2011009860A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2011009860A3 (en) | 2011-07-21 |
US20120204930A1 (en) | 2012-08-16 |
IN2012DN00394A (en) | 2015-08-21 |
DE102009027852A1 (en) | 2011-01-27 |
WO2011009860A2 (en) | 2011-01-27 |
CN102473711B (en) | 2014-08-06 |
CN102473711A (en) | 2012-05-23 |
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