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Polymer solar cell device and preparation method thereof

A technology of solar cells and polymers, applied in the field of solar cells, which can solve problems such as rising device series resistance, affecting photoelectric conversion efficiency, and increasing the difficulty of preparation

Active Publication Date: 2016-08-24
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

However, if this material is too thick (more than 1nm), the series resistance of the device will increase rapidly, causing most of the voltage drop to fall in this area, which will eventually affect the photoelectric conversion efficiency; Poor performance, causing electron traps, quenching electrons, and ultimately affecting energy conversion efficiency
This leads to strict control of the thickness of the electron buffer layer, which also increases the difficulty of preparation.

Method used

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

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preparation example Construction

[0050] Such as figure 2 The manufacturing method of the above-mentioned polymer solar cell device 100 shown includes the following steps:

[0051] In step S10, the conductive anode substrate 10 is pretreated.

[0052] The material of the conductive anode substrate 10 may be indium tin oxide glass (ITO), fluorine-doped tin oxide glass (FTO), aluminum-doped zinc oxide glass (AZO), or indium-doped zinc oxide glass (IZO).

[0053] The pretreatment process is: cleaning the conductive anode substrate 10, and then performing oxygen plasma treatment or ozone-ultraviolet treatment on the conductive anode substrate 10.

[0054] Specifically, the conductive anode substrate 10 is first subjected to photolithography processing, cut into a required size, and then ultrasonicated with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes to remove organic contaminants on the glass surface. After cleaning, the conductive anode substrate 10 is subjected to oxygen plasma treatmen...

Embodiment 1

[0085] The structure of the polymer solar cell device prepared in this embodiment is: ITO / (PEDOT: PSS) / (MEH-PPV: PCBM) / (Bhpen: Cs 2 CO 3 : Ag) / Al.

[0086] The preparation process of the above-mentioned polymer solar cell device is as follows:

[0087] Firstly, the ITO is subjected to photolithography processing, cut into the required size, and then sonicated with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes to remove organic contaminants on the glass surface. After cleaning, oxygen plasma treatment is carried out. The treatment time is 5min and the power is 30W. Then, an aqueous solution of PEDOT and PSS with a mass ratio of 6:1 and a mass percentage of 1.3% was spin-coated on the ITO and heated at 200° C. for 30 minutes to prepare a hole buffer layer with a thickness of 40 nm. Then, under a nitrogen atmosphere, the chlorobenzene solution of MEH-PPV and PCBM with a mass ratio of 1:3 and a total concentration of 24 mg / mL was spin-coated on the hole ...

Embodiment 2

[0096] The structure of the polymer solar cell device prepared in this embodiment is: IZO / (PEDOT: PSS) / (MDMO-PPV: PCBM) / (PBD: CsF: Al) / Ag.

[0097] The preparation process of the above-mentioned polymer solar cell device is as follows:

[0098] The IZO is first subjected to photolithography processing, cut into the required size, and then ultrasonicated with detergent, deionized water, acetone, ethanol, and isopropanol for 15 minutes to remove organic contaminants on the glass surface. After cleaning, oxygen plasma treatment is carried out. The treatment time is 5min and the power is 30W. Then, an aqueous solution of PEDOT and PSS with a mass ratio of 2:1 and a mass percentage of 5% was spin-coated on IZO and heated at 100° C. for 60 minutes to prepare a hole buffer layer with a thickness of 20 nm. Next, in an argon atmosphere, a xylene solution of MDMO-PPV and PCBM with a mass ratio of 1:4 and a total concentration of 8 mg / mL was spin-coated on the hole buffer layer, and annealed...

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Abstract

Provided are a polymer solar cell (100) and a manufacturing method thereof. The solar cell (100) comprises the following structures: a conductive anode substrate (10), a hole buffer layer (20), an active layer (30), an electron transport layer (40) and a cathode (50); the electron transport layer (40) The material is an electron transport material doped with cesium salt and metal particles. The solar battery (100) effectively improves the electron transport rate, and reduces the potential barrier between the electron transport layer (40) and the cathode (50).

Description

【Technical Field】 [0001] The invention relates to the field of solar cells, in particular to a high polymer solar cell device and a preparation method thereof. 【Background technique】 [0002] In 1982, Weinberger et al. studied the photovoltaic properties of polyacetylene and produced the first solar cell with a true meaning, but the photoelectric conversion efficiency at that time was extremely low (10 -3 %). Immediately afterwards, Glenis and others produced various polythiophene solar cells. The problems they faced at that time were extremely low open circuit voltage and photoelectric conversion efficiency. It was not until 1986 that CWTang and others first introduced p-type semiconductors and n-type semiconductors into double-layer structured devices, which greatly increased the photocurrent. Since then, with this work as a milestone, organic polymer solar cells have flourished. Developed. [0003] In 1992, Sariciftci et al. discovered that 2-methoxy-5-(2-ethyl-hexyloxy)-1,4-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48H10K99/00
CPCH10K30/30H10K2102/00H10K30/50Y02E10/549H10K71/12H10K85/114H10K85/215H10K85/654H10K85/1135H10K30/35H10K30/80H10K30/353H10K85/113H10K85/6565H10K85/6572
Inventor 周明杰王平黄辉陈吉星
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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