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Self-assembling type polymer solar cell negative electrode decorating material and decorating method thereof

A cathode modification and solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of difficult control of the operation process, increase the overall time of polymer solar cells, etc., achieve low cost, simple and easy to control the preparation method, reduce The effect of resistance

Inactive Publication Date: 2014-07-16
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used LiF modification layer needs to be vacuum evaporated, and the effective thickness is about 1nm, which makes the operation process difficult to control
The widely used ZnO, TiO 2 and other n-type semiconductor nanoparticles need to be synthesized by sol-gel methods, which increases the overall time for the preparation of polymer solar cells

Method used

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  • Self-assembling type polymer solar cell negative electrode decorating material and decorating method thereof
  • Self-assembling type polymer solar cell negative electrode decorating material and decorating method thereof
  • Self-assembling type polymer solar cell negative electrode decorating material and decorating method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The transparent conductive glass sputtered with indium tin oxide (ITO) was ultrasonically cleaned twice with detergent, tap water, deionized water, acetone, and isopropanol, dried with nitrogen, and spin-coated with PEDOT:PSS at a speed of 2000rpm. solution, baked and annealed at 150°C for 15 minutes, and cooled naturally to obtain an anode modification layer. Then P3HT at a total concentration of 20 mg / mL was mixed with PC 60 A mixed solution of BM (with a mass ratio of 1:1) (the solvent is o-dichlorobenzene) was directly spin-coated on the above-mentioned anode modification layer at a speed of 800 rpm, and after solvent annealing, a photoelectric active layer was formed. Finally, at 5×10 -5 100nm-thick aluminum was vacuum-evaporated under Pascal as the cathode. In the obtained polymer solar cell, the thickness of PEDOT:PSS is The prepared device has an open circuit voltage of 0.55 volts, a short circuit current of 7.09 milliamperes per square centimeter, a fill fa...

Embodiment 2

[0037] The transparent conductive glass sputtered with indium tin oxide (ITO) was ultrasonically cleaned twice with detergent, tap water, deionized water, acetone, and isopropanol, dried with nitrogen, and spin-coated with PEDOT:PSS at a speed of 2000rpm. solution, baked and annealed at 150°C for 15 minutes, and cooled naturally to obtain an anode modification layer. Then a PVDF solution with a concentration of 0.1 mg / mL (solvent is dimethylacetamide) was added to a total concentration of 20 mg / mL of P3HT and PC 60 BM (mass ratio is 1:1) in the mixed solution (solvent is o-dichlorobenzene) (in which PVDF solution and P3HT and PC 60 The volume ratio of the mixed solution of BM is 1:360), after being fully stirred, it is directly spin-coated on the above-mentioned anode modification layer at a speed of 800rpm, and after solvent annealing, a photoelectric active layer and a cathode modification layer are formed. Finally, at 5×10 -5 100nm-thick aluminum was vacuum-evaporated und...

Embodiment 3

[0039] The transparent conductive glass sputtered with indium tin oxide (ITO) was ultrasonically cleaned twice with detergent, tap water, deionized water, acetone, and isopropanol, dried with nitrogen, and spin-coated with PEDOT:PSS at a speed of 2000rpm. solution, baked and annealed at 150°C for 15 minutes, and cooled naturally to obtain an anode modification layer. Then a PVDF solution with a concentration of 0.1 mg / mL (solvent is dimethylacetamide) was added to a total concentration of 20 mg / mL of P3HT and PC 60 BM (mass ratio is 1:1) in the mixed solution (solvent is o-dichlorobenzene) (in which PVDF solution and P3HT and PC 60 The volume ratio of the mixed solution of BM is 1:20), and it is directly spin-coated on the above-mentioned anode modification layer at a speed of 800 rpm, and after solvent annealing, a photoelectric active layer and a cathode modification layer are formed. Finally, at 5×10 -5 100nm-thick aluminum was vacuum-evaporated under Pascal as the cathod...

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Abstract

The invention belongs to the technical field of solar cell negative electrode decorating, and particularly relates to a self-assembling type polymer solar cell negative electrode decorating material and a decorating method thereof. The polymer solar cell negative electrode decorating material is a polyvinylidene fluoride (PVDF) thin film formed in a self-assembling mode. The preparing method of the polymer solar cell negative electrode decorating material comprises the steps that a PVDF solution is directly dropped into an active layer solution, the mixed solution is stirred fully, and after one-time spinning coating, a self-separating negative electrode decorating layer is obtained through solvent annealing. Due to the introduction of the PVDF solution, the number of potential barriers collected by electrons in a polymer solar cell is reduced, and efficient collecting of the electrons is achieved. The self-separating PVDF thin film serves as a buffering layer, the recombination between holes and the electrons is effectively reduced, a leak current is reduced, and the photoelectric conversion efficiency of the polymer solar cell is improved. The polymer solar cell has the advantages that the manufacturing technology is simple, cost is low, the experiment repeatability is good and the polymer solar cell is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of solar cell cathode modification, in particular to a self-assembled polymer solar cell cathode modification material and a modification method thereof. Background technique [0002] Energy is an important material basis for human survival and development. However, with the increase in the amount of energy used by humans, especially fossil energy, the constraints of energy on human economic and social development and the impact on resources and the environment are becoming more and more obvious. Due to the limited and non-renewable reserves of traditional fossil fuel energy, coal, oil and natural gas, as the amount of resources continues to decrease, the cost continues to rise, and the problem of energy supply security is becoming increasingly prominent. On the other hand, the use of fossil energy seriously affects air quality, accelerates climate warming, and leads to environmental degradation. As a clea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/46H01L51/48
CPCH10K71/12H10K85/141H10K30/81Y02E10/549Y02P70/50
Inventor 谭占鳌于露李聪侯旭亮林俊
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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