EP1634343A2 - Tandem solar cell with a shared organic electrode - Google Patents
Tandem solar cell with a shared organic electrodeInfo
- Publication number
- EP1634343A2 EP1634343A2 EP04741646A EP04741646A EP1634343A2 EP 1634343 A2 EP1634343 A2 EP 1634343A2 EP 04741646 A EP04741646 A EP 04741646A EP 04741646 A EP04741646 A EP 04741646A EP 1634343 A2 EP1634343 A2 EP 1634343A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- organic material
- photovoltaic cell
- common electrode
- solar cell
- 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- Withdrawn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
- 239000011368 organic material Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 229920000767 polyaniline Polymers 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000011370 conductive nanoparticle Substances 0.000 claims description 3
- 238000013086 organic photovoltaic Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 64
- 239000004065 semiconductor Substances 0.000 description 19
- 239000000758 substrate Substances 0.000 description 14
- 238000010521 absorption reaction Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 5
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 3
- 239000000370 acceptor Substances 0.000 description 3
- 239000002800 charge carrier Substances 0.000 description 3
- 229910003472 fullerene Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000006117 anti-reflective coating Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229920000547 conjugated polymer Polymers 0.000 description 2
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 229920000301 poly(3-hexylthiophene-2,5-diyl) polymer Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 229920000144 PEDOT:PSS Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 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
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229960002796 polystyrene sulfonate Drugs 0.000 description 1
- 239000011970 polystyrene sulfonate Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/50—Photovoltaic [PV] devices
- H10K30/57—Photovoltaic [PV] devices comprising multiple junctions, e.g. tandem PV cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/30—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising bulk heterojunctions, e.g. interpenetrating networks of donor and acceptor material domains
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/81—Electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
- H10K85/1135—Polyethylene dioxythiophene [PEDOT]; Derivatives thereof
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/20—Carbon compounds, e.g. carbon nanotubes or fullerenes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/311—Phthalocyanine
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/621—Aromatic anhydride or imide compounds, e.g. perylene tetra-carboxylic dianhydride or perylene tetracarboxylic di-imide
-
- 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
-
- 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
- Y02E10/549—Organic PV cells
-
- 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
- the present invention relates to a solar cell with at least two photoactive layers.
- solar cells or photovoltaic elements are also called tandem solar cells or photovoltaic multi-cells.
- tandem solar cells represent an optical and electrical series connection of two photoactive layers.
- the present invention relates in particular to organic tandem solar cells.
- Tandem solar cells as such are essentially known. Tandem solar cells essentially represent a serial connection of two (half) solar cells. The tandem solar cells described here represent a mechanical, optical and electrical serial connection of two solar cells. This leads to an increased open circuit voltage, since the individual voltages of the ( Add half) solar cells. Tandem solar cells have a special feature, namely a common electrode between the two solar cells, on which the two types of charge carriers of one and the other solar cell recombine. If this electrode is provided by a metallic layer, the light can be reflected on the metallic layer, which leads to. Reflection losses, and thus leads to a loss of performance in the second cell.
- tandem photovoltaic devices are known, for example, from DE 693 30 835 T2.
- DE 693 30 835 T2 is limited only to p- and n-doped semiconductor material and does not disclose any organic photovoltaic devices.
- the present invention provides a tandem photovoltaic cell with at least two photoactive layers, two outer electrodes and at least one common electrode that connects two photoactive layers to one another, which is formed by at least one common electrode made of a material that can be processed from solution, is marked. 200307136
- a material that can be processed, ie processed, from solution can be applied more cost-effectively than a material that has to be separated from the gas phase, for example.
- the material that can be processed from solution is preferably an organic material.
- it is electrically conductive due to its own chemical structure or its structure or its doping.
- the material absorbs electrons from the fullerene and / or holes from the polymer, for example. This works best with metals, also with highly doped semiconductors with a small band gap, with doped half layers with a somewhat larger band gap ... etc.
- the necessary semi-transparency can also be achieved by making these layers very, very thin.
- outer electrode refers to the position relative to the photoactive layers and not to the entire tandem solar cell. In the case of a solar cell that is applied to a non-conductive substrate, the “outer electrode” can also be located between the photoactive layers of the solar cell and the substrate lie.
- the number of photoactive layers in the tandem cell is arbitrary, since the invention can in principle be applied to a tandem cell made up of any number of individual cells. It is clear that the band gaps available for the individual photoactive layers and the spectral distribution of the incident light, together with the respective absorption rates, make tandem cells from a large number of individual layers seem impractical.
- Recombination of positive charges with negative charges preferably takes place on or in the electrode.
- the conductive organic material of the common electrode comprises a polymer, in particular PEDOT. PANI and / or derivatives and / or mixtures thereof.
- PEDOT poly-3,4-ethylenedioxythiophene
- the PEDOT can also be used as a PEDOTrPSS.
- PSS is a PEDOT doped with polystyrene sulfonate.
- the photovoltaic cell comprises an intermediate layer with conductive nanoparticles (metallic or semiconducting in nature, for example: CdSe, CdTe,
- nanoparticles are incorporated into a polymer matrix so that they can be processed from solution.
- the conductive organic material of the common electrode comprises PANI (polyaniline).
- PANI and PEDOT are relatively well comparable in terms of function.
- the photovoltaic cell according to the invention is preferably an organic photovoltaic cell.
- the semi-transparent conductive layer made of organic material can also be used for inorganic tandem solar cells.
- a photovoltaic compound cell can, for example, be an inorganic solar cell with an organic solar cell attached by means of a common transparent and conductive electrode made of organic material 200307136
- the present invention provides a method of manufacturing a photovoltaic
- Tandem cell with at least two photoactive layers, two outer electrodes and at least one common electrode, which connects two photoactive layers together, and which is characterized in that the common electrode is applied from a conductive organic material between the two photoactive layers.
- a conductive layer made of an organic material makes it possible to apply the layer from a solution, which is an important one in comparison to the otherwise customary vacuum-processed metal layers
- the conductive semi-transparent organic material used can also be printed in a solvent that does not attack, damage or dissolve the underlying semiconductor.
- the method is characterized in that at least one of the photoactive layers is applied from a solvent.
- Another advantage that results from the use of a conductive semi-transparent organic material is that the layer of organic material is resistant to chemicals from which the second semiconductor layer is applied. This protects the first semiconductor layer and a second semiconductor layer can be applied from a solvent that would dissolve or dissolve or destroy the first semiconductor layer in the case of a conventional intermediate electrode. Overall, the semiconductor layers and the intermediate electrode can therefore be used without the use of vacuum processes 200307136
- the conductive semi-transparent layer of organic material can also be applied by a vacuum process if the two adjacent layers are applied by a vacuum process in production. As a result, the entire production line for the tandem solar cell can be kept under vacuum conditions and it would be impractical to carry out this one step under a normal atmosphere.
- organic material here encompasses all types of organic, organometallic and / or inorganic
- Plastics which e.g. be called "plastics”. These are all types of substances with the exception of the semiconductors that form the classic diodes (germanium, silicon) and the typical metallic conductors. A restriction in the dogmatic sense to organic material as carbon-containing material is therefore not provided, but rather is also due to the widespread use of e.g. Silicones thought. Furthermore, the term should not be subject to any restriction with regard to the molecular size, in particular to polymeric and / or oligomeric materials, but the use of "small molecules" is also entirely possible.
- the conductive semi-transparent layer made of organic material can, for example, also be a conjugated polymer that is not conductive, but has been made conductive by adding conductive fillers.
- Other alternatives are organic materials that are applied by solvents and / or a vacuum process and that meet the requirements for conductivity and semi-transparency. 200307136
- tandem solar cells One advantage of tandem solar cells is that the spectral absorption of the solar cell can be significantly broadened by using two solar cells connected in series. For example, if a semiconductor with a different band gap (first
- FIG. 1 represents a sectional view through a solar cell according to an embodiment of the present invention.
- FIG. 1 shows a cross section through a tandem solar cell according to the present invention.
- Solar cell is applied to a carrier material or a substrate 4.
- the substrate 4 can consist of organic material, for example flexible material or film, glass, plastic, a crystal or a similar material.
- the substrate 4 is shown with a break line 6 to show that the thickness of the substrate 4 is irrelevant to the present invention and can vary.
- the substrate only serves to provide the solar cell with appropriate mechanical strength and possibly surface protection.
- the substrate is provided with an anti-reflective coating 2 (or coating) on the side facing the incidence of light in order to reduce or avoid losses due to reflection. 200307136
- the first layer 8 on the substrate represents an electrode 8 of the solar cell. It is essentially irrelevant to the invention whether the electrode is a cathode or an anode.
- the first electrode 8 should therefore consist, for example, of Al, CU, ... r ITO (indium tin oxide) or the like. It should be noted that the electrode facing the incidence of light (here electrode 8) is preferably transparent or semitransparent and / or has a lattice structure. The electrode 8 can also be constructed in multiple layers according to the prior art.
- the electrode 8 arranged on the substrate 4 is a cathode.
- the electrode 8 is covered by a first active layer 10.
- the composition of the active layer 10 is essentially not important for the present invention. Active layers usually have an area with electron donors 14 and an area with electron acceptors 12, both of which are connected to one another via a depletion layer. The charge carriers (electron-hole pairs) generated in the active layer by the incidence of light are suctioned off separately into the adjacent layers.
- the first active layer can be composed, for example, of a classic monocrystalline, polycrystalline or amorphous semiconductor with a pn junction.
- the present invention can be used particularly advantageously in organic solar cells, for example with P3HT / PBCM, CuPc / PTCBI, ZNPC / C60 or a conjugate
- the side 12 of the active layer 10 facing the substrate is assigned to the electron acceptor and the side 14 facing away from the substrate is assigned to the electron donor.
- a common organic electrode 16 for example made of a semi-transparent conductive polymer, is arranged above the first active layer 10 on the side of the electron donors 14.
- the further properties of the common electrode 16, such as thickness and refractive index, can be selected such that the common electrode 16 forms a reflection layer between the first active layer 10 and the second active layer 18 that follows. If the reflection properties of the electrode can be matched to a different spectral absorption of the two active layers, the overall absorption can be influenced further positively. For example, if semiconductors with different bandgaps are used for both half-cells (first semiconductor: large
- the thickness of the semi-transparent electrode can be adjusted so that a short-wave light component is reflected back to the first photoactive layer, while a long-wave component through the electrode to the second photoactive layer with the longer wavelength absorption.
- the total absorption can also be influenced by photoactive layers of different thicknesses.
- the semi-transparent electrode 16 is followed by the second photoactive layer 18.
- the composition of the second active layer 18 is also essentially insignificant for the present invention.
- the second active layer also has an area with electron donors 22 and an area with electron acceptors 20 200307136
- the second active layer can, for example, also be composed of a classic monocrystalline, polycrystalline or amorphous semiconductor with a pn junction.
- the present invention can be used very particularly advantageously in organic solar cells, for example with P3HT / PBCM, CuPc / PTCBI, ZNPC / C ⁇ O or a conjugated polymer component and a fullerene component.
- organic solar cells for example with P3HT / PBCM, CuPc / PTCBI, ZNPC / C ⁇ O or a conjugated polymer component and a fullerene component.
- combinations of conventional semiconductor materials can also be combined with organic semiconductors.
- the second photoactive layer is in turn covered by an external or connecting electrode.
- electrode 24 is an anode.
- the electrode material of the anode can comprise Ag, Au, Al, CU, ... ITO or the like, for example.
- the anode since the anode faces away from the light, it is not subject to any restrictions in terms of thickness, transparency or any other restrictions.
- the anode can also be covered by a protective layer (not shown), for example a lacquer.
- the wavy arrows 26 indicate the direction of the incidence of light.
- the solar cell can also be built upside down on, for example, an opaque substrate 4, or directly on a conventional crystalline solar cell, in which case the light can then come in from above.
- an “inverse” structure has the disadvantage that the structures and 200307136
- Layers are exposed to environmental influences such as atmospheric oxygen, dust and the like, which can quickly damage or render the solar cell unusable.
- anti-reflective coating 2 on the other side of the solar cell.
- the present invention can also be applied to conventional monocrystalline or polycrystalline solar cells.
- the intermediate electrode 16 would in turn be arranged between the active layers of the tandem solar cell.
- the intermediate electrode 16 can be deposited both from the gas phase and from a solution, which makes the processing or the production of the intermediate layers cheaper.
- the present invention relates to a solar cell with at least two photoactive layers. Such solar cells or photovoltaic elements are also called tandem solar cells or photovoltaic multi-cells. Essentially, tandem solar cells represent an optical and electrical series connection of two photoactive layers.
- the present invention relates in particular to organic tandem solar cells, which according to the invention comprises at least one “common” electrode which is arranged between two photovoltaically active layers and which is essentially made of organic material.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Photovoltaic Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10326547A DE10326547A1 (en) | 2003-06-12 | 2003-06-12 | Tandem solar cell with a common organic electrode |
PCT/EP2004/050914 WO2004112161A2 (en) | 2003-06-12 | 2004-05-26 | Tandem solar cell with a shared organic electrode |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1634343A2 true EP1634343A2 (en) | 2006-03-15 |
Family
ID=33494994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04741646A Withdrawn EP1634343A2 (en) | 2003-06-12 | 2004-05-26 | Tandem solar cell with a shared organic electrode |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070272296A1 (en) |
EP (1) | EP1634343A2 (en) |
JP (1) | JP4966653B2 (en) |
DE (1) | DE10326547A1 (en) |
WO (1) | WO2004112161A2 (en) |
Families Citing this family (73)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006278584A (en) * | 2005-03-28 | 2006-10-12 | Dainippon Printing Co Ltd | Organic thin-film solar cell element |
EP1724838A1 (en) * | 2005-05-17 | 2006-11-22 | Ecole Polytechnique Federale De Lausanne | Tandem photovoltaic conversion device |
US7772485B2 (en) | 2005-07-14 | 2010-08-10 | Konarka Technologies, Inc. | Polymers with low band gaps and high charge mobility |
US20070181179A1 (en) | 2005-12-21 | 2007-08-09 | Konarka Technologies, Inc. | Tandem photovoltaic cells |
US8158881B2 (en) | 2005-07-14 | 2012-04-17 | Konarka Technologies, Inc. | Tandem photovoltaic cells |
US7781673B2 (en) | 2005-07-14 | 2010-08-24 | Konarka Technologies, Inc. | Polymers with low band gaps and high charge mobility |
CN101248542B (en) * | 2005-08-02 | 2011-08-10 | 株式会社艾迪科 | Photoelectric conversion element |
DE602006016861D1 (en) * | 2005-12-21 | 2010-10-21 | Konarka Technologies Inc | PHOTOVOLTAIC TANDEM CELLS |
US20080230120A1 (en) * | 2006-02-13 | 2008-09-25 | Solexant Corp. | Photovoltaic device with nanostructured layers |
EP2261980B1 (en) * | 2006-04-11 | 2013-06-12 | Merck Patent GmbH | Tandem photovoltaic cells |
US8008424B2 (en) | 2006-10-11 | 2011-08-30 | Konarka Technologies, Inc. | Photovoltaic cell with thiazole-containing polymer |
US8008421B2 (en) | 2006-10-11 | 2011-08-30 | Konarka Technologies, Inc. | Photovoltaic cell with silole-containing polymer |
JP4985929B2 (en) * | 2006-10-31 | 2012-07-25 | スタンレー電気株式会社 | Organic thin film device and tandem photoelectric conversion device |
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