Dye for dye-sensitized solar cell, semiconductor electrode, and dye-sensitized solar cell

A solar cell and pigment sensitization technology, applied in solar cells, semiconductor devices, electrolytic capacitors, etc., can solve the problems of complex synthesis of pigment intermediates, achieve high photoelectric conversion efficiency, prevent reverse electron transfer reactions, and reduce negative effects Effect

Inactive Publication Date: 2011-08-31
MITSUBISHI PAPER MILLS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the dye dimer has good adsorption stability to semiconductors and photoelectric conversion efficiency, the synthesis of dye intermediates is very complicated, and it is difficult to produce dyes in large quantities.

Method used

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  • Dye for dye-sensitized solar cell, semiconductor electrode, and dye-sensitized solar cell
  • Dye for dye-sensitized solar cell, semiconductor electrode, and dye-sensitized solar cell
  • Dye for dye-sensitized solar cell, semiconductor electrode, and dye-sensitized solar cell

Examples

Experimental program
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Effect test

Embodiment

[0217] The present invention will be described in more detail through examples below, but the present invention is not limited thereto.

Synthetic example 1

[0218] (Synthesis Example 1: Synthesis of Pigment A-7)

[0219] Mix intermediate A; 1.0 g, intermediate B; 0.4 g, 0.05 g of ammonium acetate, and 20 ml of acetic acid, and heat at a bath temperature of 120° C. for 7 hours. After cooling to room temperature, the precipitated solid was collected by filtration, washed with 50 ml of acetic acid, 50 ml of water, and 20 ml of methanol, and dried to obtain 1.1 g of a crude product. This was purified by silica gel column chromatography (developing solvent: chloroform / methanol=10 / 1 (volume ratio)) to obtain 0.9 g of dye A-7.

[0220] Maximum absorption (N, N-dimethylformamide solution): 485nm

Synthetic example 2

[0221] (Synthesis Example 2: Synthesis of Pigment A-3)

[0222] Mix intermediate C; 1.7 g, intermediate B; 0.8 g, 0.05 g of ammonium acetate, and 40 ml of acetic acid, and heat at a bath temperature of 120° C. for 7 hours. After cooling to room temperature, the precipitated solid was collected by filtration, washed with 50 ml of acetic acid, 50 ml of water, and 20 ml of methanol, and dried to obtain 2.0 g of a crude product. This was purified by silica gel column chromatography (developing solvent: chloroform / methanol=10 / 1 (volume ratio)) to obtain 1.6 g of compound A-3.

[0223] Maximum absorption (methanol solution): 490nm

[0224] [chem 47]

[0225]

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Abstract

Disclosed is a dye for dye-sensitized solar cells that is composed of a compound classified as a merocyanine dye, has a structure wherein electron donor units and electron acceptor units are joined with a conjugated double bond, and has excellent photoelectric conversion and durability. With the dye, it is possible to provide a semiconductor electrode that is sensitized by the dye as well as a dye-sensitized solar cell made by using the semiconductor electrode.

Description

technical field [0001] The present invention relates to a dye for a dye-sensitized solar cell, a semiconductor electrode and a dye-sensitized solar cell. Background technique [0002] Global warming due to an increase in carbon dioxide concentration caused by the use of a large amount of fossil fuels, and an increase in energy demand accompanying an increase in population have been recognized as problems related to the survival of human beings. Therefore, in recent years, the use of sunlight that is unlimited and does not generate harmful substances has been intensively studied. As the utilization of sunlight, which is a green energy source, inorganic solar cells such as monocrystalline silicon, polycrystalline silicon, amorphous silicon, and cadmium telluride or indium copper selenide, etc. for residential use are currently put into practical use. [0003] However, the above-mentioned inorganic solar cells also have disadvantages. For example, silicon-based silicon is req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M14/00C07D209/20C07D209/88C07D409/14C07D417/06C07D417/14C09B23/00H01L31/04
CPCC07D417/06Y02E10/542H01G9/2059H01L51/0061H01L51/006C09B23/148C07D409/14H01L51/0068H01L51/0064H01L51/0069C07D417/14C09B57/00H01L51/0072C07D209/20H01L51/0062H01M14/005H01G9/2031Y02E10/549C09B23/00C07D209/88Y02P70/50H10K85/652H10K85/649H10K85/656H10K85/655H10K85/636H10K85/633H10K85/6572
Inventor 高田昌和住冈孝一香西孝章
Owner MITSUBISHI PAPER MILLS LTD
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