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Organic solar cell made of organic-inorganic cathode modification layer material and preparation method thereof

A cathode modification layer and solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of sensitivity to thickness changes, device performance limitations, and poor conductivity of polymer films, so as to reduce interfacial charge recombination and enhance electron transport and reduce recombination, improve interface morphology and crystallinity

Active Publication Date: 2020-02-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dopamine / ZnO bilayer electron transport layer can only improve the arrangement and crystallinity of the underlying ZnO particles
Polymer thin films are poorly conductive and sensitive to thickness variations, limiting device performance

Method used

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  • Organic solar cell made of organic-inorganic cathode modification layer material and preparation method thereof
  • Organic solar cell made of organic-inorganic cathode modification layer material and preparation method thereof
  • Organic solar cell made of organic-inorganic cathode modification layer material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The organic solar cell device structure of the organic-inorganic cathode modification layer material in Example 1 is: ITO / Ti 3 C 2 T x -PDA:ZnO / PTB7:PCBM / MoO 3 / Ag.

[0039] The preparation process of the above-mentioned organic solar cell is as follows:

[0040] Step 1. Ultrasonic cleaning with detergent, deionized water, acetone, absolute ethanol, and isopropanol in sequence for 25 minutes; then drying in a vacuum oven at 80°C.

[0041] Step 2, performing surface plasma treatment on the surface of the washed and dried cathode substrate (ITO) for 12 minutes.

[0042] Step 3, spin-coating a cathode modification layer on the ITO surface treated in step 2;

[0043] The cathode modification layer is made of Ti modified by PDA 3 C 2 T x Composite with ZnO, the polymerization time of dopamine is 2h. The preparation process of the cathode modification layer is as follows: firstly, dopamine is dissolved in Tris buffer solution, and the pH of the solution is adjusted t...

Embodiment 2

[0055] The organic solar cell device structure of the organic-inorganic cathode modification layer material in Example 2 is: ITO / Ti 3 C 2 T x -PDA:ZnO / PTB7:PCBM / MoO 3 / Ag.

[0056] The preparation process of the above-mentioned organic solar cell is as follows:

[0057] Step 1. Ultrasonic cleaning with detergent, deionized water, acetone, absolute ethanol, and isopropanol in sequence for 15 minutes; then drying in a vacuum oven at 60°C.

[0058] Step 2, performing surface plasma treatment on the surface of the washed and dried cathode substrate (ITO) for 12 minutes.

[0059] Step 3, spin-coating a cathode modification layer on the ITO surface treated in step 2;

[0060] The cathode modification layer is made of Ti modified by PDA 3 C 2 T x Composite with ZnO, the polymerization time of dopamine is 0.5h. The preparation process of the cathode modification layer is as follows: firstly, dopamine is dissolved in Tris buffer solution, and the pH of the solution is adjusted...

Embodiment 3

[0066] The organic solar cell device structure of the organic-inorganic cathode modification layer material in Example 3 is: ITO / Ti 3 C 2 T x -PDA:ZnO / PTB7:PCBM / MoO 3 / Ag.

[0067] The preparation process of the above-mentioned organic solar cell is as follows:

[0068] Step 1. Ultrasonic cleaning with detergent, deionized water, acetone, absolute ethanol, and isopropanol in sequence for 20 minutes; then drying in a vacuum oven at 80°C.

[0069] Step 2, performing surface plasma treatment on the surface of the washed and dried cathode substrate (ITO) for 15 minutes.

[0070] Step 3, spin-coating a cathode modification layer on the ITO surface treated in step 2;

[0071] The cathode modification layer is made of Ti modified by PDA 3 C 2 T x Composite with ZnO, the polymerization time of dopamine is 1h. The preparation process of the cathode modification layer is as follows: firstly, dopamine is dissolved in Tris buffer solution, and the pH of the solution is adjusted t...

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Abstract

The invention discloses an organic solar cell made of an organic-inorganic cathode modification layer material and a preparation method thereof. The organic solar cell comprises a cathode substrate, acathode modification layer, a photosensitive active layer, an anode modification layer and an anode, the material of the cathode modification layer is formed by doping dopamine modified Ti3C2Tx and ZnO, and the doping mass percent of the dopamine modified Ti3C2Tx is 2-8%. The cathode modification layer prepared by the method belongs to an organic-inorganic hybrid structure and has excellent electron transport capacity, and the dopamine can achieve multifunctional modification under mild conditions and coats the surfaces of various organic materials and inorganic materials, so that ZnO interface morphology and crystallinity are effectively improved, the electron transport is enhanced, and recombination is reduced; and compared to the solar cell undoped with Ti3C2Tx-PDA, the organic-inorganic composite structure synergistically improves the photoelectric conversion efficiency of the organic solar cell, and the photoelectric conversion efficiency can be improved by 22.74% at most.

Description

technical field [0001] The invention belongs to the technical field of organic solar cells, in particular to an organic solar cell made of an organic-inorganic cathode modification layer material and a preparation method thereof. Background technique [0002] The development of clean and sustainable energy has always been a research hotspot for scientists from all over the world. Organic solar cells have attracted extensive attention from researchers due to their advantages such as light weight, cheap raw materials, large-area flexible preparation, and solution processing. Organic solar cells generally consist of an ITO substrate, a cathode (anode) modification layer, a photosensitive active layer, an anode (cathode) modification layer and a metal electrode. According to the direction of charge transfer, solar cells can be divided into front-mount structure and flip-chip structure. Among them, the flip-chip structure has higher photoelectric conversion efficiency and stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K71/12H10K30/152H10K30/88Y02E10/549
Inventor 於黄忠侯春利
Owner SOUTH CHINA UNIV OF TECH
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