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A kind of perovskite solar cell with black phosphorus as hole transport layer and preparation method

A hole transport layer, solar cell technology, applied in the field of solar cells, can solve the problems of long-term use of perovskite cells, high cost, poor stability, etc.

Active Publication Date: 2018-12-11
ANHUI HUASUN ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently widely used hole transport layer is a macromolecular organic compound, but its high cost and poor stability limit the long-term use of perovskite batteries.

Method used

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  • A kind of perovskite solar cell with black phosphorus as hole transport layer and preparation method

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Effect test

Embodiment 1

[0014] The structure of the perovskite solar cell is: a transparent conductive electrode and an electron transport layer stacked on the electrode in sequence, a perovskite structure light absorption layer, a black phosphorus nanoparticle hole transport layer and a positive electrode. Wherein, the transparent conductive electrode is indium tin oxide, the electron transport layer is ZnO, the perovskite structure light absorption layer is a CH3NH3PbI3 layer, and the positive electrode is a gold electrode layer or a silver electrode layer.

Embodiment 2

[0016] The manufacturing method of the perovskite solar cell structure is as follows: Step 1, through conventional deposition (such as sputtering or spin coating method), sequentially form an electron transport layer and a perovskite structure light-absorbing layer on the transparent conductive electrode; Step 2, in the isolation Under the situation of air, get black phosphorus and grind, and the black phosphorus after grinding is dispersed in organic solvent (organic solvent comprises N-methylpyrrolidone (NMP), dimethylformamide (DMF), dimethylsulfoxide (DMSO), acetone, tetrahydrofuran, absolute ethanol, methanol, isopropanol, chloroform and dichloromethane) to obtain a dispersion with a concentration of 0.6 to 1.2 mg / mL; The dispersion liquid is first subjected to probe-type ultrasonication at a power of 1000-1400W for 2-4 hours, and then subjected to water-bath ultrasonication at a power of 200-400W for 8-12 hours; after the ultrasonication is completed, centrifuge and colle...

Embodiment 3

[0018] The manufacturing method of the perovskite solar cell structure is as follows: Step 1, through conventional deposition (such as sputtering or spin coating method), sequentially form an electron transport layer and a perovskite structure light-absorbing layer on the transparent conductive electrode; Step 2, in the isolation Under the situation of air, get black phosphorus and grind, and the black phosphorus after grinding is dispersed in organic solvent (organic solvent comprises N-methylpyrrolidone (NMP), dimethylformamide (DMF), dimethylsulfoxide (DMSO), acetone, tetrahydrofuran, absolute ethanol, methanol, isopropanol, chloroform and dichloromethane) to obtain a dispersion with a concentration of 0.6 to 1.2 mg / mL; The dispersion liquid is first subjected to probe-type ultrasonication at a power of 1000-1400W for 2-4 hours, and then subjected to water-bath ultrasonication at a power of 200-400W for 8-12 hours; after the ultrasonication is completed, centrifuge and colle...

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Abstract

The invention provides a perovskite solar cell with black phosphorus as the hole transport layer. On the black phosphorus hole transport layer are a perovskite structure light-absorbing layer, an electron transport layer and a transparent conductive electrode in sequence, and the positive electrode is prepared on black phosphorus. the backside of the hole transport layer. The black phosphorus hole transport layer has more excellent chemical stability and lower cost than organic matter as the hole transport layer, and improves the output power and photoelectric conversion efficiency of the solar cell, and further doping in the black phosphorus hole transport layer Titanium disulfide, titanium disulfide molecules can be easily nested in the defect position of the black phosphorus crystal, thereby reducing the crystal defect of the black phosphorus hole transport layer and further improving the photoelectric conversion efficiency.

Description

technical field [0001] The invention belongs to the field of solar cells, in particular to a perovskite solar cell using black phosphorus as a hole transport layer and a preparation method thereof. Background technique [0002] With the consumption of traditional energy, energy crisis and environmental problems have become serious problems facing the world. Green, safe and inexhaustible solar energy makes photovoltaic power generation an ideal solution to human energy crisis and environmental pollution. High photoelectric conversion efficiency and low manufacturing cost are prerequisites for popularizing photovoltaic power generation. Therefore, solar cells with high efficiency and low cost are the goals that people are constantly pursuing in the energy field. [0003] In the current practical application of solar energy, silicon photovoltaic cells dominate all kinds of photovoltaic devices with their mature technology and high photoelectric conversion efficiency. But its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/48H01L51/46
CPCH10K30/451H10K2102/00Y02E10/549Y02P70/50
Inventor 戚明海
Owner ANHUI HUASUN ENERGY CO LTD
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