CN112038363A - Organic laminated solar cell unit and preparation method thereof - Google Patents
Organic laminated solar cell unit and preparation method thereof Download PDFInfo
- Publication number
- CN112038363A CN112038363A CN201910476206.4A CN201910476206A CN112038363A CN 112038363 A CN112038363 A CN 112038363A CN 201910476206 A CN201910476206 A CN 201910476206A CN 112038363 A CN112038363 A CN 112038363A
- Authority
- CN
- China
- Prior art keywords
- transport layer
- layer
- solar cell
- active layer
- thickness
- 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.)
- Pending
Links
Images
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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses an organic laminated solar cell unit which is of a laminated structure and sequentially comprises an electrode layer, a first electron transport layer, a first active layer, a first hole transport layer, a second electron transport layer, a second active layer, a second hole transport layer and a metal back electrode from bottom to top. The two active layers are arranged in the battery unit and are separated by the middle transmission layer consisting of the first hole transmission layer and the second electron transmission layer, so that the light absorption efficiency can be improved, and the photoelectric conversion efficiency is improved; when the materials of the first active layer and the second active layer are different, the absorption and utilization of different wave bands of sunlight can be realized, the spectral response is expanded, and the energy loss is reduced; when located on a flexible substrate, flexible organic solar cells can be obtained.
Description
Technical Field
The invention relates to the technical field of solar cells, in particular to an organic tandem solar cell unit and a preparation method thereof.
Background
Solar energy is an inexhaustible green energy, and the conversion of solar energy into electric energy has become a focus of research and industrial development of various scientific communities. The organic solar cell has the outstanding advantages of low cost, light weight, simple manufacturing process and capability of being prepared into flexible materials, wherein the advantages of thinness, lightness and flexibility are irreplaceable by inorganic semiconductor materials.
Organic semiconductor materials have a low dielectric constant, and tend to form large binding energy upon photon absorption, and a large driving force is required for exciton dissociation, thereby causing a loss of open circuit voltage. Meanwhile, the low carrier mobility of the organic semiconductor material limits the thickness of an active layer of the organic solar cell, so that the light absorption efficiency of the cell is limited, and the photoelectric conversion efficiency is low.
Disclosure of Invention
In view of the above-mentioned technical situation, the present invention aims to improve the photoelectric conversion efficiency of an organic solar cell.
In order to achieve the above technical object, the present invention provides an organic tandem solar cell, including a bottom cell and a front cell, wherein the front cell is located on a surface of the bottom cell;
the bottom battery unit is of a laminated structure and sequentially comprises an electrode layer, a first electron transport layer, a first active layer and a first hole transport layer from bottom to top;
the front battery unit is of a laminated structure and sequentially comprises a second electron transport layer, a second active layer, a second hole transport layer and a metal back electrode from bottom to top.
Preferably, the thickness of the electrode is 50 to 100 nm.
Preferably, the thickness of the first electron transport layer is 20 to 50 nm.
Preferably, the thickness of the first active layer is 80 to 150 nm.
Preferably, the first hole transport layer has a thickness of 20 to 50 nm.
Preferably, the thickness of the second electron transport layer is 80 to 200 nm.
Preferably, the thickness of the second active layer is 80 to 200 nm.
Preferably, the thickness of the second hole transport layer is 5 to 10 nm.
Preferably, the thickness of the metal back electrode is 80-200 nm.
The material of the first electron transport layer is not limited and includes ZnO and the like.
The material of the first hole transport layer is not limited and comprises PCP-Na or PEDOT, PSS and the like.
The material of the second electron transport layer is not limited and includes ZnO and the like.
The material of the second hole transport layer is not limited and comprises PCP-Na or PEDOT, PSS and the like.
The first active layer is made of any material including PBDB-T: one or more of IT-M, PBDB-T-2F, IT-4F, PBDB-T-2Cl, IT-4F, PBDB-T-2F and Y6.
The second active layer is not limited and comprises PTB7-Th: one or more of IEICO-4F, PTB7-Th, O6T-4F, PBDB-T-2F and Y6.
The metal back electrode material is not limited and includes Ag and the like.
Compared with the prior art, the organic solar cell unit is designed in a stacking mode, one cell unit comprises a first active layer and a second active layer, the first hole transport layer and the second electron transport layer form an intermediate transport layer, the intermediate transport layer separates the first active layer from the second active layer and serves as a composite layer of electron holes, and the structural design has the following beneficial effects:
(1) the front battery unit is used as a light facing surface, when sunlight irradiates the surface, a first active layer and a second active layer in the battery unit absorb the solar light and are excited to generate electron-hole pairs, under the action of an internal electric field, the electron-hole pairs are separated, electrons of the front battery unit and holes of the bottom battery unit migrate to the middle transmission layer and are compounded on the middle transmission layer, the electrons of the bottom battery unit are transmitted through the first electron transmission layer and are collected by the electrode, the second holes of the front battery unit are transmitted through the second hole layer and are collected by the metal back electrode, and the front battery unit is connected to an external circuit to generate current, so that the solar energy can continuously generate electric energy.
(2) Two active layers are arranged in one battery unit, and the light absorption efficiency is improved by designing a proper middle transmission layer, so that the photoelectric conversion efficiency is improved; in practical applications, several organic tandem solar cells can be connected in series to form a cell structure.
(3) As an optimal design, the first active layer and the second active layer are made of different materials, and the optical active layer materials with complementary absorption are selected, so that the absorption and utilization of different wave bands of sunlight can be realized, the spectral response is expanded, the problem of narrow spectral absorption range of the organic solar cell is solved, the energy loss is reduced, and the photoelectric conversion efficiency is improved.
(4) In view of further improving the flexibility of the organic solar cell, as an optimal design, the flexible substrate is used for replacing a traditional ITO glass substrate, the bottom cell unit is designed on the surface of the flexible substrate, and the electrode in the bottom cell unit is designed to be a flexible electrode, so that the flexible organic laminated solar cell unit is obtained, the problem of poor flexibility of the traditional ITO substrate is solved, the application and large-area production of the flexible solar cell unit on flexible wearable equipment are facilitated, and the industrialization process of the flexible solar cell unit is promoted.
The material of the flexible substrate is not limited, and comprises one or more of PET, PES, PEN, PE, PI and the like.
The material of the flexible electrode is not limited, and includes PH1000 treated with acid, and the like.
The invention also provides a method for preparing the organic solar cell unit, which comprises the step of sequentially preparing an electrode layer, a first electron transport layer, a first active layer, a first hole transport layer, a second electron transport layer, a second active layer, a second hole transport layer and a metal back electrode on a substrate.
The method for preparing each layer is not limited, and includes spraying, spin coating, printing, vacuum evaporation, casting and the like.
Drawings
Fig. 1 is a schematic structural diagram of an organic tandem solar cell unit in example 1 of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings and examples, which are intended to facilitate the understanding of the invention and are not intended to limit the invention in any way.
The reference numerals in fig. 1 are: the organic light-emitting diode comprises a flexible substrate 1, an electrode layer 2, a first electron transport layer 3, a first active layer 4, a first hole transport layer 5, a second electron transport layer 6, a second active layer 7, a second hole transport layer 8 and a metal back electrode 9.
As shown in fig. 1, the flexible laminated organic solar cell unit is composed of a flexible substrate 1, a bottom cell unit located on the flexible substrate, and a front cell unit located on the bottom cell unit.
The bottom battery unit is of a laminated structure and sequentially comprises an electrode layer 2, a first electron transport layer 3, a first active layer 4 and a first hole transport layer 5 from bottom to top.
The front battery unit is of a laminated structure and sequentially comprises a second electron transport layer 6, a second active layer 7, a second hole transport layer 8 and an Ag metal back electrode 9 from bottom to top.
The electrode layer 2 is acid-treated at pH1000 and has a thickness of 50-100 nm.
The first electron transport layer 3 is ZnO and has a thickness of 20 to 50 nm.
The first active layer 4 is PBDB-T-2F: Y6 and has a thickness of 80-150 nm.
The first hole transport layer 5 is PCP-Na with a thickness of 20-50 nm;
the second electron transport layer 6 is nano ZnO particles having a thickness of 20-50 nm.
The second active layer 7 was PTB7-Th O6T-4F, having a thickness of 80-150 nm.
The second hole transport layer 8 is MoO3The thickness was 6 nm.
The flexible laminated organic solar cell unit is prepared as follows:
(1) cleaning the flexible substrate 1;
(2) pretreating the flexible substrate 1 with ultraviolet ozone (UVO) for 25 min;
(3) spin-coating a PH1000 flexible electrode 2 on a flexible substrate 1 by adopting a spin-coating process, and immediately annealing at 100 ℃ for 15min after the spin-coating is finished to obtain a film with the thickness of about 50-100 nm; brushing silver paste on the flexible electrode to lead out the electrode;
(4) the ZnO first electron transmission layer 3 is spin-coated on the PH1000 flexible electrode 2 by adopting a spin-coating process, and the annealing is carried out for 30min at 150 ℃ after the spin-coating is finished, so that the thickness of the obtained film is about 20-50 nm;
(5) spin-coating a first active layer 4 on the ZnO electron transport layer 3 by adopting a spin-coating process, and performing thermal annealing and vacuum-pumping treatment on the first active layer to obtain a film with the thickness of about 80-150 nm;
(6) spin-coating the second hole transport layer 5 on the first active layer 4 by using a spin-coating process, and performing thermal annealing or vacuum-pumping treatment to obtain a film with the thickness of about 20-50 nm;
(7) a second hole transport layer 5 is spin-coated with a second electron transport layer 6 of nano ZnO particles by a spin-coating process, and after the spin-coating is finished, annealing is carried out at 80 ℃ for 20min, so that the thickness of the obtained film is about 20-50 nm;
(8) spin-coating a second active layer 7 on the second electron transport layer 6 of the nano ZnO particles by adopting a spin-coating process, and obtaining a film with the thickness of about 80-200nm after vacuumizing or thermal annealing;
(9) MoO is evaporated on the second active layer 7 by adopting a vacuum evaporation process3A second hole transport layer 8 under vacuum of 10 deg.C-4Vapor deposition is carried out under Pa, and the thickness of the vapor deposition film is 6 nm;
(10) in MoO by vacuum evaporation3Depositing Ag metal back electrode 9 on the hole transport layer 8 at vacuum degree of 10-4And (5) performing vapor deposition under Pa, wherein the thickness of the vapor deposited film is 100nm, and the preparation of the flexible laminated organic solar cell is completed.
The above embodiments are described in detail to explain the technical solutions and advantages of the present invention, and it should be understood that the above embodiments are only specific examples of the present invention and are not intended to limit the present invention, and any modifications and improvements made within the scope of the principles of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An organic tandem solar cell, comprising: the battery pack comprises a bottom battery unit and a front battery unit, wherein the front battery unit is positioned on the surface of the bottom battery unit;
the bottom battery unit is of a laminated structure and sequentially comprises an electrode layer, a first electron transport layer, a first active layer and a first hole transport layer from bottom to top;
the front battery unit is of a laminated structure and sequentially comprises a second electron transport layer, a second active layer, a second hole transport layer and a metal back electrode from bottom to top.
2. The organic tandem solar cell unit of claim 1 wherein: the thickness of the electrode layer is 50-100 nm;
preferably, the thickness of the first electron transport layer is 20-50 nm;
preferably, the thickness of the first active layer is 80 to 150 nm;
preferably, the thickness of the first hole transport layer is 20-50 nm;
preferably, the thickness of the second electron transport layer is 80-200 nm;
preferably, the thickness of the second active layer is 80 to 200 nm;
preferably, the thickness of the second hole transport layer is 5-10 nm;
preferably, the thickness of the metal back electrode is 80-200 nm.
3. The organic tandem solar cell unit of claim 1 wherein: the material of the first electron transport layer comprises ZnO;
preferably, the material of the first hole transport layer comprises PCP-Na or PEDOT PSS;
preferably, the material of the second electron transport layer comprises ZnO;
preferably, the material of the second hole transport layer comprises PCP-Na or PEDOT PSS;
preferably, the first active layer material comprises PBDB-T: one or more of IT-M, PBDB-T-2F, IT-4F, PBDB-T-2Cl, IT-4F, PBDB-T-2F, Y6;
preferably, the second active layer material comprises PTB7-Th: one or more of IEICO-4F, PTB7-Th, O6T-4F, PBDB-T-2F and Y6.
4. The organic tandem solar cell unit of claim 1, 2 or 3 wherein: the first active layer is different from the second active layer in material.
5. The organic tandem solar cell unit of claim 1, 2 or 3 wherein: the bottom battery unit is positioned on the surface of the flexible substrate; the electrodes are flexible electrodes.
6. The organic tandem solar cell unit of claim 5 wherein: the material of the flexible substrate comprises one or more of PET, PES, PEN, PE and PI.
7. The organic tandem solar cell unit of claim 1 wherein: the material of the flexible electrode comprises acid treated PH 1000.
8. The method for producing an organic tandem solar cell unit according to any one of claims 1 to 7, wherein: an electrode layer, a first electron transport layer, a first active layer, a first hole transport layer, a second electron transport layer, a second active layer, a second hole transport layer and a metal back electrode are sequentially prepared on a substrate.
9. The method for producing an organic tandem solar cell unit according to any one of claims 1 to 8, wherein: the method for preparing each layer comprises one or more of spraying, spin coating, printing, vacuum evaporation and casting.
10. An organic tandem solar cell, wherein the organic tandem solar cell units according to claim 1, 2 or 3 are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910476206.4A CN112038363A (en) | 2019-06-03 | 2019-06-03 | Organic laminated solar cell unit and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910476206.4A CN112038363A (en) | 2019-06-03 | 2019-06-03 | Organic laminated solar cell unit and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112038363A true CN112038363A (en) | 2020-12-04 |
Family
ID=73576498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910476206.4A Pending CN112038363A (en) | 2019-06-03 | 2019-06-03 | Organic laminated solar cell unit and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112038363A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233508A (en) * | 2021-05-10 | 2021-08-10 | 北京化工大学 | alpha-MoO3Method for preparing solution and application thereof |
| TWI829288B (en) * | 2021-08-24 | 2024-01-11 | 日商杰富意鋼鐵股份有限公司 | Laminate, organic thin-film solar cell, method for producing laminate, and method for producing organic thin-film solar cell |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090301556A1 (en) * | 2005-03-04 | 2009-12-10 | Matsushita Electric Works, Ltd. | Multilayer organic solar cell |
| CN102568867A (en) * | 2012-01-17 | 2012-07-11 | 上海联孚新能源科技有限公司 | Laminated thin film solar battery |
| CN102856497A (en) * | 2011-06-28 | 2013-01-02 | 海洋王照明科技股份有限公司 | P-type doped parallel polymer solar cell and preparation method thereof |
| KR20140015180A (en) * | 2012-07-25 | 2014-02-06 | 삼성전자주식회사 | Organic solar cell |
| US20150040973A1 (en) * | 2013-08-12 | 2015-02-12 | Samsung Electronics Co., Ltd. | Light transmission type two-sided solar cell |
| KR20170010933A (en) * | 2015-07-20 | 2017-02-02 | 엘지디스플레이 주식회사 | Organic Light Emitting Diode Display Device Including Organic Photovoltaic Cell |
| CN107078151A (en) * | 2014-01-31 | 2017-08-18 | 凯姆控股有限公司 | Series connection organic photovoltaic devices including metal Nano structure composite bed |
| CN108155293A (en) * | 2017-12-30 | 2018-06-12 | 凯盛光伏材料有限公司 | A kind of copper indium gallium selenide perovskite lamination solar cell and preparation method thereof |
-
2019
- 2019-06-03 CN CN201910476206.4A patent/CN112038363A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090301556A1 (en) * | 2005-03-04 | 2009-12-10 | Matsushita Electric Works, Ltd. | Multilayer organic solar cell |
| CN102856497A (en) * | 2011-06-28 | 2013-01-02 | 海洋王照明科技股份有限公司 | P-type doped parallel polymer solar cell and preparation method thereof |
| CN102568867A (en) * | 2012-01-17 | 2012-07-11 | 上海联孚新能源科技有限公司 | Laminated thin film solar battery |
| KR20140015180A (en) * | 2012-07-25 | 2014-02-06 | 삼성전자주식회사 | Organic solar cell |
| US20150040973A1 (en) * | 2013-08-12 | 2015-02-12 | Samsung Electronics Co., Ltd. | Light transmission type two-sided solar cell |
| CN107078151A (en) * | 2014-01-31 | 2017-08-18 | 凯姆控股有限公司 | Series connection organic photovoltaic devices including metal Nano structure composite bed |
| KR20170010933A (en) * | 2015-07-20 | 2017-02-02 | 엘지디스플레이 주식회사 | Organic Light Emitting Diode Display Device Including Organic Photovoltaic Cell |
| CN108155293A (en) * | 2017-12-30 | 2018-06-12 | 凯盛光伏材料有限公司 | A kind of copper indium gallium selenide perovskite lamination solar cell and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233508A (en) * | 2021-05-10 | 2021-08-10 | 北京化工大学 | alpha-MoO3Method for preparing solution and application thereof |
| TWI829288B (en) * | 2021-08-24 | 2024-01-11 | 日商杰富意鋼鐵股份有限公司 | Laminate, organic thin-film solar cell, method for producing laminate, and method for producing organic thin-film solar cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4759286B2 (en) | Organic solar cell module and manufacturing method thereof | |
| CN108198941B (en) | All-inorganic perovskite solar cell with ultraviolet light filtering performance and preparation thereof | |
| CN110350089A (en) | Bi2O2S modifies SnO2The perovskite solar battery and preparation method of electron transfer layer | |
| CN110350090A (en) | Bi2O2The perovskite solar battery and preparation method of Se modifying interface | |
| CN110335946A (en) | A kind of the perovskite extinction layer material and solar battery of perovskite solar battery | |
| CN110335945B (en) | Double-electron-transport-layer inorganic perovskite solar cell and manufacturing method and application thereof | |
| CN112582545B (en) | Laminated perovskite solar cell and preparation method thereof | |
| CN109980090A (en) | A kind of efficient ternary organic photovoltaic cell and preparation method thereof | |
| CN109273609A (en) | A kind of perovskite solar battery and preparation method thereof | |
| CN112038363A (en) | Organic laminated solar cell unit and preparation method thereof | |
| CN209963073U (en) | Novel high-efficiency double-sided incident light CdTe perovskite laminated photovoltaic cell | |
| CN107394044A (en) | A kind of perovskite solar cell of high-performance conductive electrode and electron transfer layer and preparation method thereof | |
| CN112599683B (en) | Lamination process for preparing laminated solar cell | |
| CN207441751U (en) | A kind of homojunction perovskite thin film solar cell | |
| US20130042906A1 (en) | Quantum-dot sensitized solar cell | |
| CN116669443A (en) | Laminated solar cell of patterned electron transport layer and preparation method thereof | |
| CN111540791A (en) | Solar cell and manufacturing method thereof | |
| CN115000057A (en) | perovskite/GaAs two-end mechanical laminated solar cell of metal grid interconnection layer | |
| KR101709198B1 (en) | Manufacturing method of dye sensitized solar cell | |
| CN115206956A (en) | Perovskite/crystalline silicon both ends mechanical laminated solar cell of carbon nanotube interconnection | |
| CN115117041A (en) | Perovskite/crystalline silicon both ends mechanical laminated solar cell of metal grid interconnection layer | |
| CN111162178A (en) | Perovskite solar cell with compound perovskite light-absorbing layer | |
| CN114420853A (en) | Method for modifying self-assembled hole transport layer by alkali metal acetate | |
| WO2021218522A1 (en) | Perovskite solar battery with composite transport layer, and method for preparing same | |
| CN111326659B (en) | Metal transparent electrode and organic solar cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |