Perovskite solar cell with black phosphorus being hole transfer layer and preparation method thereof

A hole transport layer, solar cell technology, applied in the field of solar cells, can solve the problems of high cost, limited long-term use of perovskite cells, poor stability, etc., to reduce crystal defects, excellent chemical stability, low cost Effect

Active Publication Date: 2016-11-16
ANHUI HUASUN ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
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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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  • Perovskite solar cell with black phosphorus being hole transfer layer and preparation method thereof

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Experimental program
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Embodiment 1

[0015] 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. Among them, the transparent conductive electrode is indium tin oxide, the electron transport layer is ZnO, the light-absorbing layer of perovskite structure is CH3NH3PbI3 layer, and the positive electrode is gold electrode layer or silver electrode layer.

Embodiment 2

[0017] The manufacturing method of the perovskite solar cell structure is as follows: step 1, sequentially form an electron transport layer and a perovskite structure light-absorbing layer on the transparent conductive electrode by conventional deposition, sputtering or spin coating; step 2, in the case of isolating the air Next, get black phosphorus and grind, and the black phosphorus after grinding is dispersed in organic solvent (organic solvent comprises N-methylpyrrolidone (NMP), dimethylformamide (DMF), dimethyl sulfoxide (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 was first Perform probe-type ultrasonication at a power of 1000-1400W for 2-4 hours, and then perform water-bath ultrasonication at a power of 200-400W for 8-12 hours; after the ultrasonication is completed, centrifuge and collect the supernatant; step 3, the collected ...

Embodiment 3

[0019] The manufacturing method of the perovskite solar cell structure is as follows: step 1, sequentially form an electron transport layer and a perovskite structure light-absorbing layer on the transparent conductive electrode by conventional deposition, sputtering or spin coating; step 2, in the case of isolating the air Next, get black phosphorus and grind, and the black phosphorus after grinding is dispersed in organic solvent (organic solvent comprises N-methylpyrrolidone (NMP), dimethylformamide (DMF), dimethyl sulfoxide (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 was first Perform probe-type ultrasonication at a power of 1000-1400W for 2-4 hours, and then perform water-bath ultrasonication at a power of 200-400W for 8-12 hours; after the ultrasonication is completed, centrifuge and collect the supernatant; Add titanium disulfid...

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Abstract

The invention provides a perovskite solar cell with black phosphorus being a hole transfer layer. A perovskite structure light-absorption layer, an electron transfer layer and a transparent conductive electrode are arranged in sequence on the black phosphorus hole transfer layer; and a positive electrode is prepared on the back surface of the black phosphorus hole transfer layer. The black phosphorus hole transfer layer, compared with an organic matter hole transfer layer, has more excellent chemical stability and lower cost, and improves output power and photoelectric conversion efficiency of the solar cell; and furthermore, titanium disulfide is doped in the black phosphorus hole transfer layer, and titanium disulfide molecules can be nested easily in defect positions of black phosphorus crystal, thereby reducing crystal defect of the black phosphorus hole transfer layer and furthermore, improving 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 Applications(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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