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Solar cell and method for preparing solar cell

A technology of solar cells and electrodes, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as solar cells that need to be improved, and achieve the effect of improving performance

Active Publication Date: 2016-04-20
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, current solar cells and their fabrication methods still need to be improved

Method used

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  • Solar cell and method for preparing solar cell
  • Solar cell and method for preparing solar cell
  • Solar cell and method for preparing solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] The first step is to prepare and clean the transparent conductive electrode

[0122] On the glass substrate, the fluorine-doped tin oxide anode layer with a thickness of 120 nanometers is etched into the desired electrode pattern, and the etched FTO glass is sequentially washed with detergent, deionized water, absolute ethanol, acetone, and isopropanol. Ultrasonic for 15 minutes respectively, cleaned, placed in an oven, dried at 120°C, and treated with UV / ozone for 30 minutes.

[0123] The second step is to prepare the electron transport layer

[0124] The precursor solution of titanium diacetylacetonate diisopropoxide was coated on the surface of the transparent conductive electrode by scraping method, and then sintered at 450°C for 30min in a muffle furnace to form an electron transport layer with a thickness of 45nm.

[0125] The third step is to prepare the mesoporous layer

[0126] The interface modification layer was prepared by spin coating on the surface of th...

Embodiment 2

[0139] The first step is to prepare and clean the transparent conductive electrode

[0140] On the glass substrate, etch the indium tin oxide anode layer with a thickness of 120 nanometers into the required electrode pattern, and place the etched ITO glass in detergent, deionized water, absolute ethanol, acetone, and isopropanol in sequence Sonicate them for 15 minutes, clean them, put them in an oven, dry them at 120°C, and treat them with UV / ozone for 30 minutes.

[0141] The second step is to prepare the electron transport layer

[0142] By evaporation method, the preparation of C 60 Thin film, the film thickness is 2 to 30nm, and the optimal thickness is 5nm.

[0143] electron transport layer

[0144] The third step and the fourth step are the same as the fourth step and the fifth step of Example 1.

[0145] The fifth step, preparing the counter electrode is the same as the sixth step of Example 1.

[0146] The device structure of the planar heterojunction perovskite ...

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Abstract

The invention provides a solar cell and a method for preparing the solar cell. The solar cell comprises an electrode, a light absorption layer, a hole transporting layer and a counter electrode, wherein the light absorption layer is arranged on the lower surface of the electrode, the hole transporting layer is arranged on the lower surface of the light absorption layer and contains a metal phthalocyanine complex, the counter electrode is arranged on the lower surface of the hole transporting layer, and the metal phthalocyanine complex has the general formula shown in the formula I. Thus, the energy level matching degree of the hole transporting layer and the light absorption layer can be improved, the cost is reduced, and the functions for passivating and protecting the light absorption layer are achieved.

Description

technical field [0001] The present invention relates to the field of energy. In particular, the present invention relates to perovskite solar cells and methods of making solar cells. Background technique [0002] A solar cell is a type of energy supply device that converts sunlight into electrical energy through the photoelectric conversion effect. At present, there are various materials and structures of solar cells, among which perovskite materials are widely used due to their high solar light absorption rate, long exciton diffusion path and high energy conversion efficiency. applied to the preparation of solar cells. [0003] However, current solar cells and their fabrication methods still need to be improved. Contents of the invention [0004] The present invention is obtained based on the inventor's following discoveries: current solar cells based on perovskite materials generally have problems such as high price, unsatisfactory device stability and service life. ...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/311H10K30/15Y02E10/549Y02P70/50
Inventor 许宗祥张军王玉龙
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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