Multilayer organic solar cell using a polyelectrolyte layer, and method for manufacturing same

A technology for solar cells and a manufacturing method, applied in the field of solar cells, can solve problems such as application of polymers, and achieve the effects of simple manufacturing process, omitting heat treatment process, and improving efficiency

Inactive Publication Date: 2012-03-28
GWANGJU INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, even if a polymer photoactive layer is formed by a solution process, a heat treatment process is required to improve efficiency, so it is difficult to apply a polymer with poor heat resistance to the photoactive layer

Method used

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  • Multilayer organic solar cell using a polyelectrolyte layer, and method for manufacturing same
  • Multilayer organic solar cell using a polyelectrolyte layer, and method for manufacturing same
  • Multilayer organic solar cell using a polyelectrolyte layer, and method for manufacturing same

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Embodiment approach

[0020] The present invention allows various modifications and various embodiments, and specific examples will be illustrated and described below. However, this is not intended to limit the specific disclosure, and it should be understood that various changes and equivalent substitutions can be made without departing from the principle of the present invention and the invention in the technical field. During the description with reference to the drawings, like reference numerals will be used for like structural components.

[0021] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0022] figure 1 It is a schematic diagram of a laminated organic solar cell 100 according to an embodiment of the present invention.

[0023] refer to figure 1 On the substrate 10, the first electrode 11, the first charge transport layer 12, the first organic photoactive layer 13, the composite layer 14, the second orga...

manufacture example 1

[0065] Production Example 1: Production of laminated organic solar cells

[0066] Provided is a substrate in which an ITO layer as a first electrode is coated on a glass substrate. PEDOT:PSS was coated as a first charge transport layer on the above-mentioned ITO layer in a thickness of 30 nm. PCDTBT as electron donor and PC as electron acceptor 70 BM is put into dichlorobenzene and mixed to make PCDTBT: PC 70 After the BM solution, the above-mentioned PCDTBT:PC 70 BM solution to form the first organic photoactive layer.

[0067] After the titanium precursor sol was prepared using titanium tetraisopropoxide (Titanium (IV) isopropanol), 2-ethylene glycol monomethyl ether (2-methoxyethanol) and ethanolamine (ethanolamine) under a nitrogen atmosphere, the spin coating method was used to The titanium precursor sol is coated on the above-mentioned first organic photoactive layer. The coated titanium precursor sol forms a titanium oxide film, that is, an n-type semiconductor m...

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Abstract

The invention relates to a multilayer organic solar cell using a polyelectrolyte layer, and to a method for manufacturing same. The multilayer organic solar cell comprises a first electrode, a first organic photoactive layer, a recombination layer, a second organic photoactive layer, and a second electrode. The recombination layer includes an n-type semiconductor material layer and a conjugated polyelectrolyte layer.

Description

technical field [0001] The present invention relates to a solar cell, in particular to an organic solar cell. Background technique [0002] With the advent of the era of high oil prices, organic solar cells, which have attracted much attention as an alternative energy source, have the advantages of low process cost and bendable characteristics, so related research is in full swing recently. Among them, while focusing on the development of new substances, research has also been carried out on introducing a laminated structure to overcome the problem of low energy conversion efficiency. [0003] However, to date, most laminated organic solar cells still utilize single molecules that require an evaporation process. On the other hand, even if a polymer photoactive layer is formed by a solution process, a heat treatment process is required to improve efficiency, so it is difficult to apply a polymer with poor heat resistance to the photoactive layer. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0256H01L31/042
CPCH01L2251/308H01L51/0037H01G9/2009H01L51/4253H01G9/2031H01L51/4226Y02E10/542H01L27/302Y02E10/549H01L51/0053Y02P70/50H10K30/57H10K85/1135H10K85/621H10K30/151H10K30/30H10K2102/103H10K30/00
Inventor 李光熙李秉勋朴成钦金善熙
Owner GWANGJU INST OF SCI & TECH
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