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Preparation method of efficient and stable organic polymer solar cell

A solar cell and polymer technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as low efficiency, poor stability, rapid interface attenuation, etc., achieve excellent crystallinity, good dispersion, and avoid colloidal particle agglomeration. Effect

Active Publication Date: 2016-10-12
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at problems such as low efficiency, poor stability, and rapid attenuation caused by interface attenuation in the performance of organic polymer solar cells in the prior art, the purpose of the present invention is to provide a method for preparing an organic polymer solar cell with high efficiency and high stability

Method used

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  • Preparation method of efficient and stable organic polymer solar cell
  • Preparation method of efficient and stable organic polymer solar cell
  • Preparation method of efficient and stable organic polymer solar cell

Examples

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preparation example Construction

[0026] TiO of the present invention 2 Preparation of nanocrystalline sol:

[0027] 1) Mix 50mL of n-butanol and 1.6mL of nitric acid in a wide-mouth Erlenmeyer flask, stir thoroughly for 10 minutes, and add 5mL of acetic acid at the same time, and wait until the mixture is uniform. At this time, the pH of the system is 0.2, and the system is heated to 40°C;

[0028] 2) Slowly add 24mL tetrabutyl titanate dropwise to the above solution, and stir at 40°C for 40min;

[0029] 3) Add 8 mL of deionized water dropwise to the solution in B at a rate of 0.02 mL / S. After it is hydrolyzed to form a gel, add 100 mL of deionized water and continue stirring at 40°C for 24 hours to obtain a transparent sol;

[0030] 4) Heat the sol to 80°C and stir vigorously for 7 hours to obtain highly dispersed TiO 2 Nanocrystalline;

[0031] 5) The above highly dispersible TiO 2 The nanocrystalline sol was diluted with alcohol 50 times the volume of the sol, and then used.

Embodiment 1

[0033]This example uses a commercial ITO substrate, which has been standard patterned. The ITO substrate was ultrasonically cleaned with acetone, detergent, deionized water and isopropanol for 15 minutes respectively, then dried under hot air, and finally treated with ozone in a UV-ozone machine (UV-Ozone) for 15 minutes. The whole process is to clean the substrate surface.

[0034] Will be based on the above method TiO 2 For nanocrystalline sol, spin-coat nanoparticle sol on the treated ITO substrate at 1000 rpm to form an electron transport layer of about 10 nm, and anneal on a 150-degree hot stage for 15 minutes. After it was cooled to room temperature, it was transferred to a glove box, and the previously prepared 1:0.8wt% P3HT:PCBM solution (dissolved P3HT:PCBM in o-dichlorobenzene solution to form a solution) was spin-coated at 1000 rpm. The active layer film was slowly grown in a petri dish for 1.5-3 hours, and then the film was annealed for 15 minutes on a hot stage ...

Embodiment 2

[0043] This example uses a commercial FTO substrate, which has been standard patterned. The FTO substrate was ultrasonically cleaned with acetone, detergent, deionized water and isopropanol for 15 minutes, then dried under hot air, and finally treated with ozone in a UV-ozone machine (UV-Ozone) for 15 minutes. The whole process is to clean the substrate surface.

[0044] The TiO prepared based on the above method 2 For nanocrystalline sol, spin-coat nanoparticle sol on the treated ITO substrate at 1000 rpm to form an electron transport layer of about 10 nm, and anneal on a 100-degree hot stage for 15 minutes. After it was cooled to room temperature, it was transferred to a glove box, and the previously prepared 1:1.5wt% P7BT:PCBM solution was spin-coated at 1700rpm (dissolve P7BT:PCBM in a chlorobenzene solution to form a solution). 3% DIO was added to the active layer film before spin coating, and then the film was left to dry slowly at room temperature. After it dries, th...

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Abstract

The invention discloses a preparation method of an efficient and stable organic polymer solar cell. A TiO2 nanoparticle crystal layer, an electron transport layer, an organic active layer, a hole transmission layer and a top electrode are sequentially prepared on a transparent conductive electrode to obtain an inverted solar cell structure; and the inverted solar cell structure is subjected to standing treatment in an environment with certain humidity and an oxygen-containing gas. Through the method, the device efficiency can be significantly improved; the improvement amplitude can reach 1.5 times; the stability performance of the device is obviously improved; and the efficiency attenuation amplitude is smaller than 15% after the efficient and stable organic polymer solar cell is exposed in a high-humidity atmospheric environment for 1,000 hours; and the method is simple in technology, low in cost and suitable for large-scale production and application.

Description

technical field [0001] The invention relates to a method for preparing an organic polymer solar cell, in particular to a method for preparing an organic polymer solar cell with high efficiency and high stability, and belongs to the field of organic polymer solar cells. Background technique [0002] With the development of society, the contradiction between the gradual depletion of fossil fuels and the increasing demand for energy is constantly emerging; at the same time, the environmental problems caused by the use of fossil energy have seriously endangered human life and health. Solar energy has become the most ideal alternative energy due to its huge energy storage, cleanness, and renewable characteristics. In recent years, solar cell technology has attracted attention because it can convert solar energy into a common form of energy - electricity. Currently commercialized solar cells include silicon solar cells (Si), cadmium telluride solar cells (CdTe), gallium arsenide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48
CPCH10K71/811Y02E10/549
Inventor 张坚熊健薛小刚蔡平张小文
Owner GUILIN UNIV OF ELECTRONIC TECH
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