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Organic photovoltaic cell taking sulfur-doped MoO3 film as anode interface layer and preparation method thereof

An organic photovoltaic cell and anode interface technology, applied in photovoltaic power generation, circuits, electrical components, etc., to achieve the effects of simple process and method, improved performance, and good thermal stability

Inactive Publication Date: 2013-07-31
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the anode interface layer of organic solar cells, MoO 3 There is no report about sulfur doping of thin films

Method used

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  • Organic photovoltaic cell taking sulfur-doped MoO3 film as anode interface layer and preparation method thereof
  • Organic photovoltaic cell taking sulfur-doped MoO3 film as anode interface layer and preparation method thereof
  • Organic photovoltaic cell taking sulfur-doped MoO3 film as anode interface layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] 1 Preparation of target

[0038] The purity is 99.9%MoS 2 Prepare a circular target with a thickness of 5 mm, that is, MoS 2 target.

[0039] 2 substrate processing

[0040] The substrate used in the test is a conductive glass sheet (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, 2 085025), the substrate should be cleane...

Embodiment 1

[0055] (1) Cleaning coated with FTO (fluorine-doped SnO 2 ) Glass 1 of conductive film 2: first put the conductive glass piece into a solution containing detergent (such as Liby brand liquid detergent) and soak for 10 minutes, then scrub it repeatedly and rinse it with clean water; then polish it with polishing powder ; Then put them into containers containing deionized water, acetone and alcohol and ultrasonically for 20 minutes respectively; finally put them into deionized water and rinse them twice, then dry them with a nitrogen gun and dry them in an oven at 80°C to eliminate stress;

[0056] (2) MoO on FTO glass substrate 3 Preparation of thin films: the MoS 2 The target and the conductive glass 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 (the background vacuum is the vacuum degree of the vacuum chamber before backfilling the working gas...

Embodiment 2

[0062] (1) Cleaning the glass coated with the FTO conductive film: Same as in Example 1.

[0063] (2) MoO on FTO glass substrate 3 Preparation of thin films: the MoS 2 The target and the conductive glass 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, the total flow rate of the sputtering atmosphere is 10sccm, O during sputtering 2 / (Ar+O 2 )=50%, substrate temperature: 300°C, sputtering working pressure: 1.0Pa, sputtering power at 100W, sputtering time 2min. Sulfur-doped MoO prepared under this preparation condition 3 The XPS diagram of thin film Mo3d is attached image 3 as shown in (b);

[0064] (3) Formulation of the organic photosensitive layer: the same as in Example 1.

[0065] (4) in MoO 3 Swing the organic film: same as Example 1.

[0066] (5) Preparation of electrode: Same as Example 1.

[0067] (6) Battery perform...

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Abstract

The invention relates to an organic photovoltaic cell taking a sulfur-doped MoO3 film as an anode interface layer and a preparation method thereof. The organic photovoltaic cell taking the sulfur-doped MoO3 film as the anode interface layer comprises an oxide transparent conducting substrate, an anode interface layer, an organic photosensitive active layer and metal electrodes, wherein the anode interface layer is a sulfur-doped MoO3 film deposited from an MoS2 target on the oxide transparent conducting substrate by using a magnetron sputtering system through changing the argon-to-oxygen ratio in the working atmosphere while depositing the film. The organic photovoltaic cell has the benefits that the causticity to ITO (Indium Tin Oxides) is avoided, and the heat stability is excellent. Compared with the traditional prepared MoO3 film, the sulfur-doped MoO3 film prepared through adopting the method reduces defects of the MoO3 film, especially the defect on the surface, facilitates improving an interface between the anode interface layer and the photosensitive active layer, enables an electron hole to pass the anode interface layer and relevant interfaces smoothly, and achieves the aim of improving the performance of the organic photovoltaic cell.

Description

technical field [0001] The present invention relates to a sulfur-doped MoO 3 The organic photovoltaic cell with thin film as the anode interface layer and its preparation method belong to the field of thin film materials and devices, and also belong to the field of new energy materials. Background technique [0002] 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. [0003] At this stage, how to improve the photoelectric conversion efficiency and stability of organic solar cells is the primary issue of research in this field. Although the synthesis of photosensitive active layer materials is one of the hot spots in the research and development of polymer organic solar cells, many interfaces in the battery (such as: the interface between the electron donor and the acceptor, the interface b...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCY02E10/549
Inventor 秦平力秦中立余雪里李端勇张昱
Owner WUHAN INSTITUTE OF TECHNOLOGY
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