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Preparation method for perovskite type solar cell based on spraying technology

A solar cell and perovskite-type technology, applied in the field of solar cells, can solve the problems that limit the industrialization of perovskite solar cells and cannot be applied to the preparation of large-area devices, achieve good industrialization prospects, and the preparation method is simple and easy line effect

Active Publication Date: 2014-09-17
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the spin-coating method can prepare high-quality uniform films on small-area substrates and obtain high device efficiency, it cannot be applied to the preparation of large-area devices, thus limiting the industrialization of perovskite solar cells.

Method used

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  • Preparation method for perovskite type solar cell based on spraying technology

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Effect test

Embodiment 1

[0023] Spray PEDOT:PSS solution on a transparent conductive substrate, and heat at 150°C for 10 minutes to prepare a hole transport layer; place the substrate on a heating plate and heat it to 100°C, spray PbI 2 and CH 3 NH 3 40wt% butyrolactone solution of I and heated for 30min; then sprayed with 2mol / L PCBM chlorobenzene solution; finally sprayed with alcohol solution of silver nanowires and heated at 100°C for 5min to obtain a perovskite solar cell.

Embodiment 2

[0025] Spray PEDOT:PSS solution on a transparent conductive substrate, and heat at 100°C for 15 minutes to prepare a hole transport layer; place the substrate on a heating plate and heat it to 100°C, and first spray a layer containing 1mol / L PbI 2 DMF solution and heated for 30min, then sprayed with 10mg / ml of CH 3 NH 3 I isopropanol solution and heated for 30min; then spray 2mol / L PCBM chlorobenzene solution; finally spray the alcohol solution of silver nanowires and heat at 100°C for 5min to obtain a perovskite solar cell.

Embodiment 3

[0027] Spray PEDOT:PSS solution on a transparent conductive substrate, and heat at 180°C for 5min to prepare a hole transport layer; place the substrate on a heating plate and heat it to 100°C, while spraying a solution containing 1mol / L PbI 2 DMF solution and CH containing 1mol / L 3 NH 3 I isopropanol solution and heated for 30min; then spray 2mol / L PCBM chlorobenzene solution; finally spray the alcohol solution of silver nanowires, and heat at 100°C for 5min to obtain a perovskite solar cell.

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Abstract

The invention provides a preparation method for a perovskite type solar cell based on a spraying technology. Concretely, a transparent conductive substrate is sequentially sprayed with a hole transfer layer, a perovskite active layer, an electron transfer layer and a top electrode to prepare the perovskite type solar cell. The quality and performance of the solar cell can be regulated and controlled by changing different parameters of the spraying technology. The preparation method is easy to implement, can prepare the efficient and low-cost perovskite type solar cell and has good industrialization prospects.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a method for preparing perovskite solar cells based on a spraying process. Background technique [0002] Perovskite solar cells are solar cells that use organic-metal halides with a perovskite structure as the core light absorption, photoelectric conversion, and photogenerated carrier transport materials. Perovskite-type organic-metal halides have excellent electron and hole transport properties, suitable energy band structure, and can efficiently absorb broad-spectrum light from visible light to 800nm ​​wavelength for photoelectric conversion, and theoretically have high photoelectricity. conversion efficiency. At the same time, this type of material also has the characteristics of self-assembly, so the synthesis is simple, it is very suitable for the coating process, and effective thin film deposition can be achieved through a low-cost liquid phase method. [...

Claims

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Application Information

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IPC IPC(8): H01L51/48
CPCY02E10/549H10K71/12Y02P70/50
Inventor 李福山杨开宇郭太良吴朝兴许鸿源
Owner FUZHOU UNIV
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