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Solar cell and method for producing solar cell

A solar cell and electrode technology, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as the need for improvement of solar cells, and achieve the effect of improving performance

Active Publication Date: 2018-11-20
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 producing solar cell
  • Solar cell and method for producing solar cell
  • Solar cell and method for producing solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0122] The fluorine-doped tin oxide anode layer with a thickness of 120 nanometers is etched into the required electrode pattern on the glass substrate, and the etched FTO glass is sequentially applied in detergent, deionized water, absolute ethanol, acetone, and isopropanol. Ultrasonic for 15min in the medium, clean it, put it in an oven, dry at 120℃, and treat with UV / ozone for 30min.

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

[0124] The precursor solution of titanium diacetylacetone diisopropoxide was coated on the surface of the transparent conductive electrode by a knife coating method, and then sintered at a high temperature of 450°C for 30 minutes 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 o...

Embodiment 2

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

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

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

[0142] Using evaporation method to prepare C 60 The film thickness is 2-30nm, and the optimized thickness is 5nm.

[0143] Electron transport layer

[0144] The third and fourth steps are the same as the fourth and fifth steps in Example 1.

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

[0146] The device structure of the planar heterojunction perovskite solar cell prepared by the above method is as follows: glass / ITO(orFTO) / ...

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Abstract

The present invention proposes a solar cell and a method for preparing a solar cell. The solar cell includes: an electrode; a light-absorbing layer, the light-absorbing layer is arranged on the lower surface of the electrode; a hole transport layer, the hole-transporting layer is arranged on the lower surface of the light-absorbing layer, and the hole-transporting layer Contains a metal phthalocyanine complex; and a counter electrode, the counter electrode is arranged on the lower surface of the hole transport layer, wherein the metal phthalocyanine complex has the general formula shown in formula I. Thereby, the degree of energy level matching between the hole transport layer and the light absorbing layer can be improved, the cost can be reduced, and the light absorbing layer can be passivated and protected.

Description

Technical field [0001] The invention relates to the field of energy. Specifically, the present invention relates to a perovskite solar cell and a method of preparing the solar cell. Background technique [0002] Solar cells are a type of energy supply device that converts sunlight into electrical energy through the photoelectric conversion effect. At present, the materials used in solar cells and the structures of solar cells are diverse. Among them, perovskite materials are widely used due to their high solar absorption rate, long exciton diffusion path length and high energy conversion efficiency. Applied to the preparation of solar cells. [0003] However, current solar cells and their preparation methods still need to be improved. Summary of the invention [0004] The present invention is based on the following findings of the inventor: current solar cells based on perovskite materials generally have problems such as high price, device stability, and unsatisfactory lifetime. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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