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Dye-sensitized solar cell and organic solvent-free electrolyte for dye-sensitized solar cell

A technology for solar cells and pigment sensitization, applied in the fields of nanotechnology, electrolytic capacitors, circuits, etc. for information processing, can solve the problems such as the inability to quasi-solidify the electrolyte, the inability to obtain photoelectric conversion performance, and the insufficient electrolyte performance. Achieve the effects of excellent photoelectric conversion performance, cost reduction, and improved safety and reliability

Inactive Publication Date: 2010-12-01
TDK CORPARATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this electrolyte solution cannot be quasi-solidified, and its performance as an electrolyte is insufficient, when it is used in a dye-sensitized solar cell, practical photoelectric conversion performance cannot be obtained.

Method used

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  • Dye-sensitized solar cell and organic solvent-free electrolyte for dye-sensitized solar cell
  • Dye-sensitized solar cell and organic solvent-free electrolyte for dye-sensitized solar cell
  • Dye-sensitized solar cell and organic solvent-free electrolyte for dye-sensitized solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] First, a dye-carrying electrode was fabricated in the following procedure.

[0055] SnO ready to be doped with fluorine 2 A transparent glass substrate (TCO: manufactured by AGC Fabritech Co., Ltd., size: length 25 mm x width 25 mm x thickness 1.1 mm) which is a transparent conductive film. Next, 750 ml of a 0.1 M potassium chloride aqueous solution was prepared as an electrolytic solution. In this electrolytic solution, the transparent conductive film of the transparent glass substrate and the platinum plate of the counter electrode were arranged to face each other, and silver / silver chloride was used as the reference electrode. , while carrying out oxygen bubbling, a potentiostatic electrolysis (preliminary electrolysis) at a potential of -0.1 V (vs. Ag / AgCl) was carried out. The electrolysis conditions at this time were a temperature of 70°C and a charge amount of -2.35°C. This preliminary electrolysis realizes modification of the electrolyte solution and surface m...

Embodiment 2～5

[0068] The organic solvent-free electrolytes (quasi-solid electrolytes) of Examples 2 to 5 were prepared in the same manner as in Example 1, except that the inorganic iodine compound was changed as described in Table 1. Then, the dye-sensitized solar cells of Examples 2 to 5 were prepared in the same manner as in Example 1, except that the organic solvent-free electrolytes of Examples 2 to 5 were used, respectively. The measurement results are shown in Table 2.

Embodiment 6～7

[0070] Examples 6 and 7 were produced in the same manner as in Example 1, except that the counter electrode used was a counter electrode in which a Pt layer with a thickness of 100 nm was formed on the transparent conductive film of the counter electrode used in Example 1 by sputtering. dye-sensitized battery. The measurement results are shown in Table 2.

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Abstract

The invention relates to a dye-sensitized solar cell and organic solvent-free electrolyte for dye-sensitized solar cell. Provided are a novel dye-sensitized solar cell using an organic solvent-free electrolyte and capable of exhibiting excellent photoelectric conversion characteristics, and a novel and practical organic solvent-free electrolyte for such a dye-sensitized solar cell. An organic solvent-free electrolyte containing a conductive carbon material, water, and an inorganic iodine compound is used as an electrolyte for a dye-sensitized solar cell. The organic solvent-free electrolyte is preferably a quasi-solid electrolyte and the conductive carbon material in the organic solvent-free electrolyte has a surface area of preferably from 30 to 300 m2 / g.

Description

technical field [0001] The present invention relates to a dye-sensitized solar cell and an organic solvent-free electrolyte for the dye-sensitized solar cell. Background technique [0002] In recent years, among organic solar cells, dye-sensitized solar cells have attracted attention because they have high photoelectric conversion efficiency and are inexpensive to manufacture. The main components of a dye-sensitized solar cell are a porous metal oxide semiconductor, a sensitizing dye, an electrolyte, and a counter electrode. [0003] Conventionally, as an electrolyte of a dye-sensitized solar cell, an electrolyte containing an organic solvent has been generally used (for example, refer to Patent Document 1). However, in the case of using an organic solvent-containing electrolyte, the production process must be carried out in a non-aqueous environment, preferably in a dehydrated state; thus, the production process is complicated, and there is a problem of increased productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46
CPCB82Y10/00H01G9/2018H01G9/2059Y02E10/542H01L51/0064H01G9/2004H01L51/0048H01G9/2031H10K85/221H10K85/652
Inventor 村井美纪
Owner TDK CORPARATION
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