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Flexible perovskite solar cell

A solar cell and perovskite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as being unsuitable for flexible perovskite solar cells, and achieve low square resistance, good flexibility, and high light transmittance. Effect

Inactive Publication Date: 2016-10-26
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research and development of flexible perovskite solar cells has become extremely important. Due to the limitation of flexible transparent conductive substrates, the temperature during the preparation of flexible perovskite solar cells cannot exceed 150 ° C, so mesoporous structures that require high-temperature sintering are not suitable. Suitable for the development of flexible perovskite solar cells, only planar heterojunction structures can be used
At present, flexible perovskite solar cells mostly use ITO electrodes that are fragile and scarce indium resources

Method used

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Embodiment 1

[0020] This embodiment provides a flexible perovskite solar cell based on PH1000 transparent conductive anode, the cell structure is as follows figure 2 As shown; wherein, 201 is a flexible substrate PET; 202 is a photoelectrode, the material is PEDOT:PSS PH1000, as a battery anode; 203 carrier transport layer one is a hole transport layer, and the material is PEDOT:PSS AI4083; 204 is Perovskite light-absorbing layer CH 3 NH 3 PB 3 ; 205 carrier transport layer two is the electron transport layer, the material is PCBM; 206 is Rhodamine101, 207 is LiF, 208 is metal Al, 206, 207 and 208 together form the back electrode, as the cathode of the battery.

[0021] The manufacturing method of the solar cell is as follows: in a clean environment, the PH1000 anode is prepared by spin-coating on a PET flexible substrate with a thickness of 100nm. Then spin-coat the hole transport layer AI4083 at a speed of 5000 RPM for 60 seconds, heat on a hot plate at 130 degrees for 20 minutes, tr...

Embodiment 2

[0023] This embodiment provides a flexible perovskite solar cell based on a three-layer graphene transparent conductive anode, the structure of which is as attached image 3 As shown; wherein, 301 is a flexible substrate PET; 302 photoelectrode three-layer graphene, as a battery anode; 303 carrier transport layer one is a hole transport layer, the material is PEDOT:PSS AI4083; 304 is perovskite light absorption Layer CH 3 NH 3 PB 3-X Cl X ; 305 carrier transport layer 2 is the electron transport layer PCBM; 306 is Rhodamine101, 307 is LiF, 308 is metal Al, 306, 307 and 308 together form the back electrode as the cathode of the battery.

[0024] The preparation method of the battery is as follows: on the Cu substrate, a single-layer graphene film is prepared by CVD method, the graphene is transferred to PET by PMMA, and a three-layer graphene film is formed by three transfers, and its square resistance is 65Ω / □ , The light transmittance is 91%. Spin-coat AI4083 in a clean ...

Embodiment 3

[0026] This embodiment provides a flexible perovskite solar cell based on a double-layer graphene transparent conductive cathode. The cell structure is as follows: Figure 4 Shown; Wherein, 401 is the flexible substrate PEN; 402 photoelectrode double-layer graphene, as battery cathode; 403 carrier transport layer one is the electron transport layer, the material is ZnO; 404 is the perovskite light-absorbing layer CH 3 NH 3 PB 3 ; 405 carrier transport layer two is a hole transport layer, the material is PTAA; 406 back electrode is Au, as battery anode.

[0027] The manufacturing method of the solar cell is as follows: on the Cu substrate, a single-layer graphene film is prepared by CVD method, and the graphene is transferred to PEN through PMMA, and a double-layer graphene film is formed by two transfers, and its square resistance is 106Ω / □, the light transmittance is 94%. In an ultra-clean environment, 5.3% ZnO nano-sol was prepared, and the ZnO electron transport layer w...

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Abstract

The invention provides a flexible perovskite solar cell, and the structure of the solar cell sequentially comprises a flexible substrate, a photoelectrode, a first carrier transmission layer, a perovskite light absorption layer, a second carrier transmission layer and a back electrode from the bottom to the top, wherein the photoelectrode is made of multilayer graphene or a conductive polymeric material. The solar cell is high in flexibility, is light and thin, is low in cost, and is high in efficiency. Diversified products can be developed through employing the flexibility of the solar cell, and the solar cell will be wide in application range. Meanwhile, the solar cell carves out a way for the utilization of the large-batch big-area roll-to-roll technology, and provides a new idea for the final industrialization of perovskite.

Description

technical field [0001] The invention belongs to the field of semiconductor optoelectronic devices, in particular to a flexible, thin, high-efficiency and low-cost planar heterojunction perovskite solar cell. Background technique [0002] With the depletion of non-renewable resources such as coal, oil and natural gas, new energy, especially solar cells, has become a hot spot of research at home and abroad. Traditional silicon cells are relatively expensive, dye-sensitized cells have many limitations in preparation technology, and organic solar cells have a simple structure but poor stability, so they still have many problems in industrialization. Since the first report in 2009, perovskite solar cells have been favored by researchers for their ultra-low-cost solution preparation process. The energy conversion efficiency has increased from the initial 3.8% to 20.2%. With the deepening of research, The efficiency of the cell is very likely to exceed that of the currently develo...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/46
CPCH10K30/152H10K30/151H10K30/20H10K30/82Y02E10/549
Inventor 冷重钱陆仕荣杨俊汤林龙罗伟姬乙雄麻超燕魏兴战史浩飞
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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