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Photoelectric conversion element and solar cell

A photoelectric conversion element, a general-type technology, applied in the direction of electrical components, photovoltaic power generation, electrolytic capacitors, etc., can solve the problem of low conversion efficiency, and achieve the effect of good adsorption and high photoelectric conversion efficiency

Inactive Publication Date: 2010-10-20
KONICA MINOLTA BUSINESS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even when these dyes are used, the conversion efficiency is lower than when a ruthenium c

Method used

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  • Photoelectric conversion element and solar cell
  • Photoelectric conversion element and solar cell
  • Photoelectric conversion element and solar cell

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

Synthesis Example 1 (Synthesis of Pigment 1)

The aldehyde (compound A) was added to a DMF solution of 2.5 equivalents of diethyl benzhydryl phosphonate and 3 equivalents of K-OtBu, and stirred at 120°C for 1 hour. After adding water to the reaction solution, it was extracted with ethyl acetate, washed with water, dried with magnesium sulfate, concentrated to dryness with a rotary evaporator, and treated with a silica column to obtain compound B.

1.5 equivalents of phosphorus oxychloride and 3 equivalents of DMF were added to the toluene solution of compound B, and stirred at 60°C for 1 hour. Cold water was added to the reaction solution, stirred at room temperature for 1 hour, extracted with ethyl acetate, washed with water, dried with magnesium sulfate, concentrated and dried with a rotary evaporator, and treated with a silica column to obtain compound C .

The acetic acid solution containing compound C, 1.2 equivalents of thiohydantoin, and 3 equivalents of ammonium acetate ...

Example Embodiment

Synthesis Example 2 (Synthesis of Pigment 32)

The dye 32 was synthesized according to the following reaction scheme.

3 equivalents of phosphorus oxychloride was dropped into DMF, and after stirring at room temperature for 30 minutes, DMF of p-methoxytriphenylamine was dropped at 0° C., and the mixture was stirred at room temperature for 3 hours. Cold water was added to the reaction solution, stirred at room temperature for 1 hour, extracted with ethyl acetate, washed with water, dried with magnesium sulfate, concentrated and dried with a rotary evaporator, and treated with a silica column to obtain compound E .

The DMF solution of compound E and 1.05 equivalent of diethylphenyl (p-tolyl) methyl phosphonate was cooled to 0°C, 1.1 equivalent of sodium methoxide was added, and the mixture was stirred for 3 hours. After adding a 0.1 mol / l hydrochloric acid aqueous solution to the reaction solution, it was extracted with ethyl acetate, washed with water, dried with magnesium sulfa...

Example Embodiment

Example

Hereinafter, the present invention will be described through examples, but the present invention is not limited to these examples.

Example

[Production of photoelectric conversion element 1]

Using screen printing method (coating area 5×5mm 2 ) A titanium dioxide paste (anatase type, primary average particle size (average under microscope observation) 18 nm, polyethylene glycol dispersion) was applied to a fluorine-doped tin oxide (FTO) conductive glass substrate. Coating and drying were repeated 3 times (120°C for 3 minutes), firing at 200°C for 10 minutes and 500°C for 15 minutes to obtain a 15 μm thick titanium dioxide thin film. The same method was used to coat and fire titanium dioxide paste (anatase type, primary average particle size (average under microscope) 400nm, polyethylene glycol dispersion) on the film to form a titanium dioxide film with a thickness of 5 μm.

Dissolve the pigment 1 of the present invention in a mixed solvent of acetonitrile: tert-butanol...

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Abstract

Provided is a photoelectric conversion element for which a novel compound (dye) exhibiting excellent adsorption to an oxide semiconductor and exhibiting high photoelectric conversion efficiency is used, and also provided is a solar cell employing the photoelectric conversion element. Disclosed is a dye-sensitizing type photoelectric conversion element possessing at least a pair of facing electrodes, a semiconductor layer possessing a semiconductor and a sensitizing dye supported on the semiconductor, and a charge transport layer, wherein the semiconductor layer and the charge transport layer are provided between the facing electrodes, and wherein the sensitizing dye comprises a compound represented by the following Formula (1).

Description

technical field The present invention relates to a photoelectric conversion element and a solar cell using a novel compound (dye). Background technique In recent years, concentrated efforts have been made on the unlimited use of sunlight that does not produce harmful substances. Examples of solar utilization of this clean energy that have been put into practical use today include monocrystalline silicon, polycrystalline silicon, amorphous silicon, and inorganic solar cells such as cadmium telluride and indium copper selenide for residential use. However, the disadvantages of these inorganic solar cells include, for example, that silicon-based solar cells are required to have very high purity, and of course the purification process is complicated, the number of processes is large, and the production cost is high. On the other hand, a large number of solar cells using organic materials have also been proposed. As organic solar cells, there are Schottky-type photoelectric c...

Claims

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Application Information

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IPC IPC(8): H01L51/46H01L31/04C09B23/14C09B57/00
CPCH01G9/2059H01L51/0072H01G9/2004H01L51/4226H01G9/2031H01L51/0061H01L51/006Y02E10/542H01L51/0067H01L51/0073Y02E10/549C09B23/14C09B21/00C09B57/008C09B57/02H10K85/636H10K85/633H10K85/654H10K85/6574H10K85/6572H10K30/151
Inventor 川崎秀和伊丹明彦矶部和也三轮英也西村一国鹈城真优子
Owner KONICA MINOLTA BUSINESS TECH INC
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