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Polymer solar battery with inverted structure and fabrication method thereof

A reverse structure, solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of unfavorable device stability and life, poor battery stability, and easy oxidation of the negative electrode, and achieve high photoelectric conversion efficiency , effective collection, efficient collection effect

Inactive Publication Date: 2011-09-28
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in traditional bulk heterojunction polymer solar cells, the PEDOT:PSS in contact with the positive electrode will corrode ITO, and the negative electrode with low work function is easy to oxidize, resulting in poor stability of the battery, which is not conducive to the stability and life of the device.

Method used

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  • Polymer solar battery with inverted structure and fabrication method thereof
  • Polymer solar battery with inverted structure and fabrication method thereof
  • Polymer solar battery with inverted structure and fabrication method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The transparent conductive glass sputtered with indium tin oxide (ITO) was ultrasonically cleaned with detergent, deionized water, acetone, and isopropanol in sequence, dried with nitrogen, and spin-coated with 3.75 mg / mL diisocyanate at 4000 rpm. Propoxybis(acetylacetonate)titanium isopropanol solution, baked at 150° C. for 10 minutes, and cooled naturally to obtain an electron collection layer. A 1:1 (mass ratio) mixed solution of 20 mg / mL P3HT and PCBM was directly spin-coated on the above-mentioned electron collection layer at a rotational speed of 800 rpm as a photoelectric active layer. Then at 4×10 -4 Vacuum deposition of 20nm MoO at Pa 3 , to obtain a hole-collecting layer. Finally, at 4×10 -4 100nm aluminum was vacuum-deposited under Pascal as an electrode. In the obtained reverse structure polymer solar cell, the thickness of diisopropoxy bis(acetylacetonate)titanium film is figure 2 The current-voltage curves of the device without light irradiation an...

Embodiment 2

[0030] The transparent conductive glass sputtered with indium tin oxide (ITO) was ultrasonically cleaned with detergent, deionized water, acetone, and isopropanol in sequence, dried with nitrogen, and spin-coated with 3.75 mg / mL diisocyanate at 4000 rpm. Propoxybis(acetylacetonate)titanium isopropanol solution, baked at 150° C. for 10 minutes, and cooled naturally to obtain an electron collection layer. A 1:1 (mass ratio) mixed solution of 20 mg / mL P3HT and PCBM was directly spin-coated on the above-mentioned electron collection layer at a rotational speed of 1500 rpm as a photoelectric active layer. Then at 4×10 -4 Vacuum deposition of 20nm MoO at Pa 3 , to obtain a hole-collecting layer. Finally, at 4×10 -4 50nm silver was vacuum-deposited under Pascal as an electrode. In the obtained reverse structure polymer solar cell, the thickness of diisopropoxy bis(acetylacetonate)titanium film is image 3 The current-voltage curves of the device without light irradiation and w...

Embodiment 3

[0032] The transparent conductive glass sputtered with indium tin oxide (ITO) was ultrasonically cleaned with detergent, deionized water, acetone, and isopropanol in sequence, dried with nitrogen, and spin-coated with 3.75 mg / mL diisocyanate at 4000 rpm. Propoxybis(acetylacetonate)titanium isopropanol solution, baked at 150° C. for 10 minutes, and cooled naturally to obtain an electron collection layer. Combine 12.5mg / mL of P9001 with PC 70 BM 1:1.5 (mass ratio) mixed solution was added with 3% diiodooctane additive, and then the solution was directly spin-coated on the above-mentioned electron collection layer at a rotational speed of 1500 rpm as a photoelectric active layer. Then at 4×10 -4 Vacuum deposition of 24nm MoO at Pa 3 , to obtain a hole-collecting layer. Finally, at 4×10 -4 100nm aluminum was vacuum-deposited under Pascal as an electrode. In the obtained reverse structure polymer solar cell, the thickness of diisopropoxy bis(acetylacetonate)titanium film is ...

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Abstract

The invention discloses a polymer solar battery with an inverted structure and a fabrication method thereof, belonging to the technical field of polymer solar battery. The polymer solar battery with an inverted structure comprises a substrate, a transparent conductive metal oxide electrode layer, an electron collection layer, a photovoltaic active layer, a hole collection layer and a high work function anode layer, which are sequentially stacked, wherein the electron collection layer is a titanium acetylacetonate membrane. The electron collection layer can be prepared by a spin coating method and can be introduced into the polymer solar battery with the inverted structure to achieve high-efficiency electron collection. Compared with TiO2 prepared by the traditional sol-gel method, the polymer solar battery with an inverted structure has the advantages of high photoelectric conversion efficiency, low cost, good experimental repeatability and the like, can be prepared by simple process and is suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of polymer solar cells, and in particular relates to a reverse structure polymer solar cell and a preparation method thereof. Background technique [0002] Organic and polymer thin-film solar cells, which have emerged in recent years, have attracted much attention due to their outstanding advantages such as low cost, light weight, simple manufacturing process, and large-area flexible devices. By optimizing the design and synthesis of new polymer donor materials and fullerene derivative acceptor materials and optimizing the microphase separation structure of the donor and acceptor in the active layer, the photoelectric conversion efficiency of bulk heterojunction polymer solar cells is significantly increased to 5 -8%, close to the level of amorphous silicon cells. However, in traditional bulk heterojunction polymer solar cells, the PEDOT:PSS in contact with the positive electrode will corrode ITO, and the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/46H01L51/48
CPCY02E10/50Y02E10/549Y02P70/50
Inventor 谭占鳌张文庆钱德平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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