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Optically active layer, organic solar cell comprising optically active layer, and method for manufacturing same

An organic photovoltaic cell and photoactivation technology, which is applied in photovoltaic power generation, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of low efficiency of photovoltaic cells, achieve good light absorption rate, improve life characteristics and efficiency, and improve efficiency effect

Active Publication Date: 2015-06-17
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, currently, the efficiency of organic polymer photovoltaic cells has a low level compared to the highest efficiency (~39%) of photovoltaic cells using silicone resins.

Method used

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  • Optically active layer, organic solar cell comprising optically active layer, and method for manufacturing same
  • Optically active layer, organic solar cell comprising optically active layer, and method for manufacturing same
  • Optically active layer, organic solar cell comprising optically active layer, and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0250] Example 1. Fabrication of organic photovoltaic cells subjected to non-solvent surface treatment methods

[0251] The organic photovoltaic cell has a structure of ITO / PEDOT:PSS / photoactive layer (polymer 1 as follows: PCBM) / Al. The glass substrate on which ITO was applied was ultrasonically cleaned using distilled water, acetone and 2-propanol, and the ITO surface was treated by ozone for 10 minutes, followed by spin-coating with PEDOT:PSS (Clavios AI4083) at a thickness of 26 nm at 200 °C Heat treatment for 5 minutes. A mixture of the following polymer 1 and PCBM mixed in a ratio of 1:1.75 was formed for coating of a photoactive layer, and spin coating was performed with a thickness of 100 nm to form a photoactive layer. Methanol was applied onto the photoactive layer, and spin coating for a non-solvent surface treatment method was performed at 5000 rpm, thereby removing the non-solvent. Use a thermal evaporator at 3 x 10 -6 Al was deposited under a Torr vacuum to a ...

Embodiment 2

[0254] Example 2. Fabrication of organic photovoltaic cells subjected to non-solvent surface treatment methods

[0255] The same method as in Example 1 was carried out except that 2-methoxyethanol was used instead of methanol.

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Abstract

The present specification provides a photoactive layer including an electron accepting material and an electron donating material, an organic photovoltaic cell including the same, and a method of manufacturing the organic photovoltaic cell, which includes treating the electron accepting material and the electron donating material by a non-solvent.

Description

technical field [0001] This application claims priority and benefit from Korean Patent Application PCT / KR2012 / 007932 filed on September 28, 2012 at the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. [0002] The present description relates to photoactive layers, organic photovoltaic cells comprising the photoactive layers and methods for their manufacture. Background technique [0003] Since Heeger at UCSB first demonstrated the possibility of photovoltaic cells using organic polymers in 1992, much research has been done. The cell is a heterojunction thin-film diode in which light-absorbing organic polymers and very highly electrophilic C60 fullerene derivatives or C70 fullerene derivatives are mixed with each other, and ITO (indium tin oxide, which is a transparent electrode ) as the anode and a metal electrode with low work function (such as aluminum) as the cathode material. [0004] Light is absorbed in a photoac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/48
CPCH10K85/00H10K30/87H10K30/50H10K30/30Y02E10/549B82Y10/00Y02P70/50H10K71/40H10K85/113H10K85/211H01L2031/0344H10K85/657H10K85/649H10K85/656
Inventor 李幸根全智慧李载澈王东焕朴宗爀朴五钰
Owner LG CHEM LTD
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