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Organic solar cell with MoO3/MoS2 composite film as anodic interface layer and production method of organic solar cell

A solar cell and anode interface technology, which is applied in semiconductor/solid-state device manufacturing, circuits, electrical components, etc., can solve problems such as continuation, unfavorable stability of battery performance, and insufficient battery performance, so as to achieve improved interface and good thermal stability , process and method simple effect

Active Publication Date: 2013-06-26
WUHAN UNIV
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Problems solved by technology

D.S. Ghosh and G. Fang used Plasma (T.L. Chen, R. Betancur et al, Efficient polymer solar cell employing an oxidized Ni capped Al:ZnO anode without the need of additional hole-transporting layer, App. Phy. Let. 100 (2012) 013310.) and UV-ozone(F. Cheng, G. Fang et al, Enhancing the performance of P3HT: ICBA based polymer solar cells using LiF as electron collecting buffer layer and UV–ozone treated MoO 3 as hole collecting buffer layer, Sol. Energy Mate. Sol. Cells 110 (2013) 63-68) to treat the oxide surface, remove the pollutants attached to the surface, improve the surface defects of the anode interface layer, and make the inorganic oxide anode interface layer fully contact with the photosensitive layer. As time goes by, the effect of Plasma and UV-ozone cannot be guaranteed to continue, which is not good for the stability of battery performance, nor is it a fundamental solution to the problem
[0007] MoS was cleaned by UV-ozone cleaner 2 Oxidized to MoO 3 , as the anode interface layer of organic solar cells has been reported by the K.Ueno research group (S. Kato, R. Ishikawa, Y. Kubo, H. Shirai1, K. Ueno, Efficient organic photovoltaic cells using hole-transporting MoO 3 buffer layers converted from solution-processed MoS 2 films, J. J. Appl. Phy. 50 (2011) 071604), but their prepared MoS 2 The method is a sol-gel method, resulting in poor performance of the battery

Method used

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  • Organic solar cell with MoO3/MoS2 composite film as anodic interface layer and production method of organic solar cell
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  • Organic solar cell with MoO3/MoS2 composite film as anodic interface layer and production method of organic solar cell

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Experimental program
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Effect test

preparation example Construction

[0031] 1 Preparation of target

[0032] The purity is 99.9% MoS 2 Prepare a circular target with a thickness of 5 mm.

[0033] 2 Substrate processing

[0034] The substrate used in the test is conductive glass (ITO conductive glass, FTO conductive glass, AZO conductive glass, ITAZO conductive glass, flexible transparent plastic (polyester resin) coated with ITO, which is a commercially available product or known technology) (references: 1. Guojia Fang, Dejie Li, et al., Fabrication and characterization of ZAO thin films prepared by DC magnetron sputtering with a highly conductive ceramic target, J. Crystal Growth, 2003, 247(3-4):393-400; 2. Nanhai Sun, Guojia Fang, Qiao Zheng, Mingjun Wang, Nishuang Liu, Wei Liu and Xingzhong Zhao, Transparent conducting ITAZO anode films grown by a composite target RF magnetron sputtering at room temperature for organic solar cells, Semiconductor Science & Technology, 24 (2009) 085025), the substrate should be cleaned before the test. ...

Embodiment 1

[0050] (1) Clean FTO (fluorine-doped SnO 2 ) Conductive glass: first put the conductive glass in a solution containing detergent (such as Liby brand liquid detergent) and soak for 10 minutes, then repeatedly scrub and rinse with water; then polish with polishing powder; then Put them into vessels containing deionized water, acetone and alcohol and sonicate them for 20 minutes respectively; finally put them into deionized water and rinse them twice, then blow them dry with a nitrogen gun and dry them in an oven at 80°C to eliminate stress.

[0051] (2) MoO on FTO substrate 3 Preparation of thin films: the MoS 2 The target and the substrate are loaded into the magnetron sputtering equipment, and the sputtering is carried out with a radio frequency power supply. The working conditions are: background vacuum: 1×10 -4 Pa, Ar flow rate 10.0 sccm, substrate temperature: 400°C, sputtering pressure: 1.0 Pa, sputtering power at 40 W, sputtering time 1 min. Put the sample taken out ...

Embodiment 2

[0057] (1) Cleaning of FTO glass: Same as Example 1.

[0058] (2) MoO on FTO substrate 3 Preparation of thin films: the MoS 2 The target and the substrate are loaded into the magnetron sputtering equipment, and the sputtering is carried out with a radio frequency power supply. The working conditions are: background vacuum: 2×10 -3 Pa, Ar flow rate 10.0 sccm, substrate temperature: 200°C, sputtering pressure: 1.0 Pa, sputtering power at 40 W, sputtering time 1 min. The sample that takes out is put into the ultraviolet-ozone cleaner, and under atmospheric atmosphere and room temperature, after ultraviolet-ozone treatment 3.0 hours, stand-by.

[0059] (3) Formulation of the organic photosensitive layer: the same as in Example 1.

[0060] (4) in MoO 3 Swing the organic film up: the same as in Example 1.

[0061] (5) Preparation of electrodes: same as in Example 1.

[0062] (6) Battery performance description: the open circuit voltage is: 0.612 V, the short circuit current ...

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Abstract

The invention provides an organic solar cell which comprises a transparent conductive substrate, an anodic interface layer, an organic active layer and a metal electrode, wherein the anodic interface layer is a MoO3 / MoS2 composite film. The anodic interface layer is a MoS2 film which is prepared on the transparent conductive substrate by using a magnetron sputtering method, an in-situ part of the MoS2 film is oxidized into MoO3 by using an ultraviolet-ozone cleaner. Compared with the traditional anodic interface layer, the anodic interface layer of the organic solar cell has the capability of solving the ITO (Indium Tin Oxide) corrosion problem and has good heat stability. According to the organic solar cell provided by the invention, an interface between an anode and the anodic interface layer is favorably improved, so that a hole can smoothly pass through the anodic interface layer and related interfaces, and therefore the purpose of improving the efficiency of the cell is achieved.

Description

[0001] technical field [0002] The present invention relates to a kind of MoO 3 / MoS 2 The invention relates to an organic solar cell with a composite thin film as an anode interface layer and a preparation method thereof, belonging to the field of thin film materials and devices. Background technique [0003] Polymer organic solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect. It is one of the very important means to solve energy and environmental problems. researchers' attention. Improving battery efficiency and stability is the primary issue at present, which is directly related to the anode interface layer of polymer organic solar cells. [0004] Among the anode interface layers of polymer organic solar cells, PEDOT:PSS is the most common. Because it is an acidic aqueous solution (PH flow rate 1), it has a corrosive effect on the ITO electrode and affects the service life of the battery. In addition, G...

Claims

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Application Information

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IPC IPC(8): H01L51/44H01L51/46H01L51/48
CPCY02E10/549
Inventor 秦平力方国家程飞雷红伟柯维俊
Owner WUHAN UNIV
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