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Organic solar cell based on tungsten disulfide nanosheet materials and manufacturing method thereof

A technology of organic solar cells and tungsten disulfide, applied in the manufacture/processing of organic semiconductor devices, organic semiconductor devices, circuits, etc., can solve problems such as damage, achieve good size uniformity, high hole mobility, and preparation methods simple effect

Active Publication Date: 2015-03-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure that this layer of oxide film has good crystallinity and morphology, it is usually necessary to anneal the above oxide film at a higher temperature, but high temperature annealing will destroy some organic substances as the photoactive layer, which further limits this type of method. and material applications in large area devices and inversion devices

Method used

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  • Organic solar cell based on tungsten disulfide nanosheet materials and manufacturing method thereof
  • Organic solar cell based on tungsten disulfide nanosheet materials and manufacturing method thereof
  • Organic solar cell based on tungsten disulfide nanosheet materials and manufacturing method thereof

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preparation example Construction

[0032] The preparation method of the organic solar cell of the present invention comprises:

[0033] 1) Spin-coat the dispersion of tungsten disulfide nanosheet material on the indium tin oxide anode with glass as the substrate, and then treat with ultraviolet and ozone for 5-30 minutes after spin-coating to prepare a single-layer tungsten disulfide nano-film as the hole transport layer , with a thickness of 1 to 5 nanometers;

[0034] 2) On the hole transport layer of the tungsten disulfide nanofilm, spin-coat the organic photosensitive layer made from the donor and acceptor mixed solution of the conjugated polymer, with a thickness of 100 nanometers;

[0035] 3) Spin-coat poly[(9,9-bis(3'-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9, 9-hexadecyl fluorene)] (PFN) obtains electron transport layer, and thickness is 5 nanometers;

[0036] 4) Vacuum-evaporated aluminum as a cathode on the hole transport layer with a thickness of 100 nanometers, thereby preparing an organ...

Embodiment 1

[0045] The tungsten disulfide nanosheet material was prepared by chemical solution exfoliation method, with an average thickness of 1 nanometer and an average size of 200 nanometers. figure 2 Its atomic force microscope photo.

[0046] The tungsten disulfide nanosheet material is prepared by a chemical solution exfoliation method. The obtained tungsten disulfide nanosheet material is subjected to high-speed centrifugation and ultrasonic dispersion to obtain an aqueous solution of the tungsten disulfide nanosheet material with a concentration of 2 mg / ml.

[0047] The transparent conductive glass etched with strips of indium tin oxide (ITO, anode) on the surface was ultrasonically oscillated with detergent, aqueous solution, deionized water, acetone and isopropanol for 15 minutes, dried, and then treated with oxygen plasma Treat for 15 minutes; then spin-coat tungsten disulfide aqueous solution on the indium tin oxide (ITO) anode with glass as the substrate, spin-coat at a spee...

Embodiment 2

[0050] The tungsten disulfide nanosheet material was prepared by chemical solution exfoliation method, with an average thickness of 1 nanometer and an average size of 200 nanometers. figure 2 Its atomic force microscope photo.

[0051] The tungsten disulfide nanosheet material is prepared by a chemical solution exfoliation method. The obtained tungsten disulfide nanosheet material is subjected to high-speed centrifugation and ultrasonic dispersion to obtain an aqueous solution of the tungsten disulfide nanosheet material with a concentration of 2 mg / ml.

[0052] The transparent conductive glass etched with strips of indium tin oxide (ITO, anode) on the surface was ultrasonically oscillated with detergent, aqueous solution, deionized water, acetone and isopropanol for 15 minutes, dried, and then treated with oxygen plasma Treat for 15 minutes; then spin-coat tungsten disulfide aqueous solution on the indium tin oxide (ITO) anode with glass as the substrate, spin-coat at a spee...

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Abstract

The invention discloses an organic solar cell based on tungsten disulfide nanosheet materials and a manufacturing method of the organic solar cell. The organic solar cell comprises a cathode, an electronic transmission layer, an organic photosensitive layer, a hole transfer layer, an anode and a substrate, the cathode, the electronic transmission layer, the organic photosensitive layer, the hole transfer layer, the anode and the substrate are sequentially arranged from top to bottom, and the hole transfer layer is a tungsten disulfide nanofilm and made of a tungsten disulfide nanosheet. Compared with current existing hole transfer materials, the adopted tungsten disulfide nanofilm is simple in manufacturing method, is processed in soluble liquid, is free of high-temperature annealing and is used for the organic solar cell, the effect equivalent to frequently-used existing hole transfer materials can be obtained, the good application prospect is achieved, and the great significance in pushing industrialization application of the organic solar cell is achieved.

Description

technical field [0001] The invention relates to a solar cell and a preparation method thereof, in particular to an organic solar cell based on a tungsten disulfide nanosheet material and a preparation method thereof. Background technique [0002] With the sharp increase in oil prices and the increasing depletion of mineral resources, solar energy has attracted more and more attention because of its inexhaustible, unrestricted geographical, clean and safe advantages. Solar cells, which convert solar energy into electrical energy based on the photovoltaic effect, are one of the main ways to utilize solar energy. Solar cells with organic semiconductor materials as the photosensitive layer have the advantages of solution processing, large-area flexible devices, and low cost, and have attracted more and more attention from academia and industry. In organic solar cells, it is usually necessary to select a suitable hole transport material to modify the interface between the metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K30/821H10K30/81H10K30/00H10K71/00H10K2102/00Y02E10/549
Inventor 陈红征马春燕傅伟飞王玲杨曦徐明生
Owner ZHEJIANG UNIV