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Polymer solar cell and preparation method thereof

A technology of solar cells and polymers, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of high cost, complicated manufacturing process, and unsuitable for large-area applications, and achieve the effect of improving conversion efficiency and filling factor

Active Publication Date: 2017-02-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, their manufacturing process is complicated and the cost is high, so they are not suitable for large-area applications.

Method used

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  • Polymer solar cell and preparation method thereof
  • Polymer solar cell and preparation method thereof
  • Polymer solar cell and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0037] a. The mixed material (PTB7: PC 71 BM=1:1.5wt / wt) into a small brown bottle and put into a glove box.

[0038] b. Preparation of mixed solvents:

[0039] Scheme A): Add 1-bromo-4-butylbenzene to chlorobenzene (3% DIO vol%), the ratio of chlorobenzene (3% DIO vol%) to 1-bromo-4-butylbenzene is 97:3 (vol%);

[0040] Or, according to scheme B): Add 1-bromo-4-hexylbenzene to chlorobenzene (3% DIO vol%), the ratio of chlorobenzene (3% DIO vol %) to 1-bromo-4-hexylbenzene is 97:3 (vol%).

[0041] The order of addition is: CB, DIO, solvent additive (the ratio is 94:3:3vol%).

[0042] In the mixed solution composed of mixed material and mixed solvent, the concentration of PTB7 is 10mg / ml.

[0043] The adjustable ratio range of CB, DIO and solvent additive is: 95:3:2--93:3:4.

[0044] c. Stir and heat the mixed solution for at least 12 hours at a temperature of 60°C.

[0045] d. Spin-coat the mixed solution on the hole transport layer.

[0046] Based on PTB7: PC 71 The ...

Embodiment 1

[0054] The preparation process of this embodiment is:

[0055] 1. Configure the active layer material mixed solution one day in advance. The configuration process is as follows:

[0056] a. Weigh a certain amount of PTB7 and PC 71 BM (PTB7:PC 71 BM=1:1.5wt / wt) into a special reagent bottle.

[0057] b. The weighed mixed material (PTB7 and PC 71 BM) into the glove box, first add the calculated chlorobenzene solvent, then add DIO, and finally add the solvent additive Brbb, the volume ratio is CB:DIO:Brbb=94:3:3, to obtain a mixed solution. In the mixed solution, the concentration of PTB7 was 10mg / ml.

[0058] c. Place the prepared mixed solution on a heating platform and stir for at least 12 hours at a temperature of 60°C.

[0059] 2. The anode is indium tin oxide (ITO), and its square resistance is 15Ω / cm 2 . Wipe the ITO with acetone and perform ultrasonication. The order of ultrasonic solution use: ethanol, detergent water, deionized water, acetone, ethanol. After the...

Embodiment 2

[0069] The preparation process of this embodiment is:

[0070] 1. Configure the active layer material mixed solution one day in advance. The configuration process is as follows:

[0071] a. Weigh a certain amount of PTB7 and PC 71 BM (PTB7:PC 71 BM=1:1.5wt / wt) into a special reagent bottle.

[0072] b. Put the weighed mixed material into the glove box, first add the calculated chlorobenzene solvent, then add DIO, and finally add the solvent additive Brph, according to the volume ratio, CB:DIO:Brph=94:3:3 . In the mixed solution, the concentration of PTB7 was 10mg / ml.

[0073] c. Place the prepared mixed solution on a heating platform and stir for at least 12 hours at a temperature of 60°C.

[0074] 2. The anode is indium tin oxide (ITO), and its square resistance is 15Ω / cm 2 . Wipe the ITO with acetone and perform ultrasonication. The order of ultrasonic solution use: ethanol, detergent water, deionized water, acetone, ethanol. After the ultrasound is completed, it is ...

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PUM

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Abstract

The invention provides a polymer solar cell and a preparation method thereof, which belong to the field of organic polymer solar cells. The polymer solar cell comprises an anode, a hole transporting layer, an active layer, an electron transporting layer and a cathode, and is characterized in that materials of the active layer comprise one of the following two compounds: 1-Bromo-4-butylbenzene, of which the molecular formula is C10H13Br; and 1-Bromo-4-hexylbenzene, of which the molecular formula is C12H17Br. Compared with the prior art, the polymer solar cell provided by the invention achieves improvements in open-circuit voltage, short-circuit current and filling factors, and finally significantly improves the conversion efficiency.

Description

technical field [0001] The invention belongs to the field of organic polymer solar cells. Background technique [0002] The field of organic solar cells has developed rapidly over the past 30 years. Especially in the last decade, the rapid increase in the conversion efficiency of organic solar cells has attracted the attention of the scientific field and the photovoltaic industry. Although the efficiency of organic thin-film batteries is still far behind that of inorganic solar cells, organic solar cells have the advantages of low cost, high flexibility, and low pollution. These advantages make organic solar cells have great potential in solving energy problems. At present, the society is constantly developing rapidly, and the demand for energy is also constantly increasing. As an environmentally friendly and clean energy, solar energy has received extensive attention and attention. In the current field of solar cells, according to the form of semiconductor materials used,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K85/111H10K30/451Y02E10/549
Inventor 陶斯禄周玲林慧陈新伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA