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Polymer solar cell and preparation method thereof

A technology for solar cells and polymers, applied in the field of solar cells, can solve the problems of restricted efficiency, limited solar light absorption, low photoelectric conversion efficiency, etc., and achieve the effects of avoiding failure, improving conductivity, and improving injection efficiency.

Active Publication Date: 2012-12-26
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current polymer solar cells generally have a single device structure, the photoelectric conversion efficiency is not high, and the active layer has limited absorption of sunlight, which cannot fundamentally improve the utilization of sunlight by the device, which restricts the improvement of efficiency.

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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preparation example Construction

[0038] The preparation method of above-mentioned polymer solar cell, such as figure 2 As shown, the process steps are as follows:

[0039] S1. Ultrasonic cleaning the anode base in detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes each to remove organic pollutants on the surface. After cleaning, oxygenate it at a power of 10-50W. Plasma treatment for 5-15 minutes, or UV-ozone treatment for 5-20 minutes;

[0040] S2. Spin-coat a hole buffer layer with a thickness of 20-80 nm on the anode surface of the anode substrate, and then spin-coat a first active layer with a thickness of 80-300 nm on the surface of the hole buffer layer after drying, and then dry it;

[0041] S3, vapor-depositing an n-type doped layer with a thickness of 20-80 nm on the surface of the first active layer, then vapor-depositing a metal layer with a thickness of 10-50 nm on the surface of the n-type doped layer, and then vapor-depositing a thickness of 20-50 nm on the surface of ...

Embodiment 1

[0049] The structure of the polymer solar cell in this embodiment is: ITO substrate / PEDOT:PSS / P3HT:PCBM / Li 2 CO 3 :Bphen / Ag / MoO 3 :TAPC / P3HT:PCBM / LiF / Al.

[0050] The preparation process of the polymer solar cell is as follows:

[0051] 1. Clean the ITO substrate with detergent, deionized water, acetone, ethanol, and isopropanol in sequence, and ultrasonically clean for 15 minutes each to remove organic pollutants on the glass surface. After cleaning, clean the ITO layer of the ITO substrate with power Oxygen plasma surface treatment under 10W condition for 15min;

[0052] 2. PEDOT:PSS aqueous solution (wherein, PEDOT:PSS weight ratio is 6: 1; The total mass percent of PEDOT and PSS is 1.3wt%) is prepared on the ITO layer surface of ITO substrate by the mode of spin coating; Heating at 200°C for 30 minutes to prepare a hole buffer layer with a thickness of 40 nm;

[0053] 3. Spin-coat the P3HT:PCBM chlorobenzene solution system on the surface of the hole buffer layer. Aft...

Embodiment 2

[0066] The structure of the polymer solar cell in this embodiment is: IZO substrate / PEDOT:PSS / P3HT:PCBM / LiF:PBD / Al / WO 3 :NPB / P3HT:PCBM / Li 2 CO 3 / Al.

[0067] The preparation process of the polymer solar cell is as follows:

[0068] 1. Clean the IZO substrate with detergent, deionized water, acetone, ethanol, and isopropanol in sequence, and ultrasonically clean for 15 minutes each to remove organic pollutants on the glass surface. After cleaning, clean the IZO layer on the IZO substrate Oxygen plasma surface treatment at 50W for 5 minutes;

[0069] 2. PEDOT:PSS aqueous solution (wherein, PEDOT:PSS weight ratio is 2: 1; The total mass percent of PEDOT and PSS is 1wt%) is prepared on the IZO layer surface of IZO substrate by the mode of spin coating; Heating at ℃ for 60min to prepare a hole buffer layer with a thickness of 20nm;

[0070] 3. Spin-coat the P3HT:PCBM toluene solution system on the surface of the hole buffer layer. After the spin coating, anneal at 50°C for 10...

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Abstract

The invention discloses a polymer solar cell belonging to the field of solar cells. The cell is of a stratified structure; the stratified structure comprises an anode substrate, a cavity buffer layer, an active layer, a connecting layer, an electronic buffer layer and a cathode layer, wherein the connecting layer is of a n-type doped layer-metal layer-P type doped layer structure. With the adoption of the polymer solar cell, the active layers of the two cells can be used for capturing sunshine as much as possible, so that more electrons and cavities are generated; and as the connecting layer for connecting the two cells is of a N-type doped layer-metal layer-P type doped layer structure, the electrical conductivity of the cells can be improved by the N-type doping and the P-type doping, so that the injection efficiency of the cavities and the electrons are improved.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a tandem polymer solar cell. The invention also relates to a preparation method of the polymer solar cell. Background technique [0002] In 1982, Weinberger et al. studied the photovoltaic properties of polyacetylene and produced the first real solar cell, but the photoelectric conversion efficiency at that time was extremely low (10 -3 %). Immediately afterwards, Glenis and others produced various polythiophene solar cells, but the problems they all faced at that time were extremely low open circuit voltage and photoelectric conversion efficiency. It was not until 1986 that C.W.Tang introduced p-type semiconductor and n-type semiconductor into the double-layer structure device for the first time, which greatly improved the photocurrent. Since then, taking this work as a milestone, organic polymer solar cells have flourished. developed. [0003] In 1992, Sariciftci et al. found tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/30H01L51/42H01L51/44H01L51/48
CPCY02E10/549
Inventor 周明杰王平黄辉陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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