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Organic power generating device

A power generation device, an organic technology, applied in the direction of photovoltaic power generation, circuits, electrical components, etc., can solve the problems of characteristic deterioration and damage characteristics

Inactive Publication Date: 2008-07-30
MATSUSHITA ELECTRIC WORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such converters have problems in that impurities such as In (indium) are dispersed due to the dissolution of transparent electrodes made of ITO (indium tin oxide) and IZO (indium zinc oxide) when forming the charge extraction layer, severely degrade the characteristics
In addition, when the charge extraction layer absorbs atmospheric moisture, its characteristics can be seriously impaired
It can be seen that the device officially displayed by Gratzel fails to meet both efficiency and lifespan. Therefore, the charge extraction layer needs to be improved.

Method used

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  • Organic power generating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A glass substrate 5 (manufactured by Kuramoto Seisakusho Co. Ltd.) with an ITO film (work function of 4.8 eV) forming the positive electrode 2 was used. Ultrasonic cleaning was performed for 10 minutes each in acetone and isopropanol (both manufactured by Kanto Chemical Co. Inc.), Semico Clean (manufactured by Furuuchi Chemical Corporation) and ultrapure water, followed by cleaning with vapor of isopropanol and drying. Next, the surface of the substrate 5 with the ITO film was treated for 3 minutes by an atmospheric pressure plasma surface treatment device (manufactured by Matsushita Electric Works, Ltd.).

[0042] Next, the substrate 5 with the ITO film was set in a vacuum deposition apparatus (manufactured by ULVAC, Inc.), and passed molybdenum trioxide (MoCo 3 , with a work function of 5.2 eV, which is manufactured by Kojundo ChemicalLab.Co.Ltd.) forms an inorganic layer 4 on the ITO positive electrode 2 by vacuum evaporation.

[0043] Next, an organic power generat...

Embodiment 2

[0047] As in Example 1, a cleaned and surface-treated glass substrate 5 with an ITO film was used. Via vanadium pentoxide (V 2 o 5 , work function is 5.4eV) vacuum deposition on the ITO positive electrode 2 to form an inorganic layer 4 with a thickness of 15nm. The same other steps as in Example 1 were carried out to obtain an organic power generator.

Embodiment 3

[0049] As in Example 1, a cleaned and surface-treated glass substrate 5 with an ITO film was used. By sputtering a carbon target (manufactured by Kojundo Chemical Lab. Co. Ltd) using a sputtering apparatus (manufactured by ANELVA Technix Corporation), a film composed of an amorphous carbon film (a-C, work function 5.2 eV) was formed on the ITO positive electrode 2 . Inorganic layer 4 with a thickness of 10 nm. The same other steps as in Example 1 were carried out to obtain an organic power generator.

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Abstract

In an organic power generating device that generates electricity by receiving light, a positive electrode (2) and a negative electrode (3), at least one of which has transparency, a power generating layer (1) which is formed of a mixture of an electron donor material and a hole donor material and generates electricity upon reception of light and disposed between the positive electrode and the negative electrode, and an inorganic layer (4) which has a work function larger than that of the positive electrode and is disposed between the power generating layer and the positive electrode, are provided. Accordingly, an efficiency to take off electric charges from the power generating layer can be increased, so that the organic power generating device with high efficiency and long life can be obtained.

Description

technical field [0001] The present invention relates to an organic power generation device for an organic solar cell, which includes a power generation layer that generates electric energy upon receiving light. Background technique [0002] There is a need to develop economical and high-performance clean energy so as to reduce the pressure on the global environment, and therefore, solar cells utilizing sunlight are attracting attention as such clean energy. [0003] Most existing solar cells are inorganic solar cells using single crystal silicon, polycrystalline silicon or amorphous silicon. However, these inorganic silicon-based solar cells have not been widely used because they are made by complicated processes at high cost. In order to solve this problem, organic solar cells using organic materials are being actively developed to achieve low cost and mass production with simple processes. [0004] In organic solar cells, Professor Gratzel of Lausanne Collage of Engineer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42
CPCB82Y10/00H01L51/0038H01L51/4253H01L51/0047H01L51/442H01L51/422Y02E10/549H10K85/114H10K85/215H10K30/30H10K30/82H10K30/50H10K30/15
Inventor 河野谦司伊藤宜弘菰田卓哉阪井淳
Owner MATSUSHITA ELECTRIC WORKS LTD