Method for preparing counter electrode of dye sensitization solar battery based on carbon nanotube and platinum

A technology of solar cells and carbon nanotubes, applied in the field of dye-sensitized solar cells, can solve the problems of weak catalytic ability, low total energy efficiency of the battery, small surface area, etc.

Inactive Publication Date: 2009-08-19
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the surface area of ​​platinum electrodes obtained by ordinary methods is relatively small, and the catalytic ability of platinum on the surface for the reduction reaction is also weak, resulting in low overall energy efficiency of the entire battery; and platinum electrodes w

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: A method for preparing a counter electrode of a dye-sensitized solar cell with a large specific surface area based on carbon nanotubes and metal platinum, comprising the following steps:

[0011] (1) 1g of chloroplatinic acid is added to 100mL of isopropanol solution to completely dissolve the chloroplatinic acid to obtain a concentration of 0.01g / mL in isopropanol solution of chloroplatinic acid. Add 0.05g of carbon nanotubes and stir evenly to obtain an isopropanol solution of chloroplatinic acid containing carbon nanotubes;

[0012] (2) Clean the conductive glass, apply the isopropanol solution of chloroplatinic acid containing carbon nanotubes on the surface of the conductive glass by spin coating, and then dry the surface of the conductive glass after coating the solution in the air for 24 hours Above, obtain the conductive glass containing coating layer;

[0013] (3) Put the conductive glass containing the coating layer into the sintering furnace, f...

Embodiment 2

[0014] Embodiment 2: A method for preparing a counter electrode of a dye-sensitized solar cell with a large specific surface area based on carbon nanotubes and metal platinum, comprising the following steps:

[0015] (1) 1.5g chloroplatinic acid is added in 100mL isopropanol solution, chloroplatinic acid is dissolved completely, obtains the isopropanol solution of chloroplatinic acid that concentration is 0.015g / mL, then add chloroplatinic acid isopropanol solution Add 0.05g of carbon nanotubes in and stir evenly, obtain the isopropanol solution of chloroplatinic acid containing carbon nanotubes;

[0016] (2) Clean the conductive glass, apply the isopropanol solution of chloroplatinic acid containing carbon nanotubes on the surface of the conductive glass by spin coating, and then dry the surface of the conductive glass after coating the solution in the air for 24 hours Above, obtain the conductive glass containing coating layer;

[0017] (3) Put the conductive glass containi...

Embodiment 3

[0018] Embodiment 3: A method for preparing a counter electrode of a dye-sensitized solar cell with a large specific surface area based on carbon nanotubes and metal platinum, comprising the following steps:

[0019] (1) 0.1g chloroplatinic acid is added in 100mL isopropanol solution, chloroplatinic acid is completely dissolved, and obtaining concentration is the chloroplatinic acid isopropanol solution of 0.001g / mL, then to chloroplatinic acid isopropanol solution Add 0.01g of carbon nanotubes to the mixture and stir evenly to obtain the isopropanol solution of chloroplatinic acid containing carbon nanotubes;

[0020] (2) Clean the conductive glass, apply the isopropanol solution of chloroplatinic acid containing carbon nanotubes on the surface of the conductive glass by spin coating, and then dry the surface of the conductive glass after coating the solution in the air for 24 hours Above, obtain the conductive glass containing coating layer;

[0021] (3) Put the conductive ...

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Abstract

The invention discloses a preparation method of a counter electrode of a dyestuff sensitized solar cell on the basis of a carbon nanotube and platinum. The method comprises the following steps: chloroplatinic acid is added into isopropyl alcohol for complete dissolution, thus obtaining a chloroplatinic acid isopropyl alcohol solution which is added with carbon nanotube and evenly stirred, thus obtaining a chloroplatinic acid isopropyl alcohol solution containing the carbon nanotube; conductive glass which is taken as a substrate is cleaned; the solution is coated on the surface of the conductive glass in a spin coating way and naturally dried for more than 24h in the air; and the conductive glass coated with the solution is put into a sintering furnace.

Description

(1) Technical field: [0001] The invention belongs to the field of dye-sensitized solar cells, and relates to a dye-sensitized solar cell counter electrode based on carbon nanotubes and metal platinum. (two) background technology: [0002] In 1991, the Laboratory of Ecole Polytechnique de Lausanne, Switzerland published in the authoritative journal Nature (O’Regan B., M., 1991, 353, 737) reported the research results of a brand-new dye-sensitized solar cell, which immediately received widespread international attention and attention. [0003] Dye-sensitized solar cells are mainly composed of the following parts: photoanode, nanoporous semiconductor film, dye sensitizer, electrolyte and counter electrode. The battery takes I 3 The / I redox couple acts as a medium to transfer charge between the photoanode and the counter electrode. During this media regeneration cycle, the oxidized species (I 2 or I 3 ) is re-reduced to I on the counter electrode. In this process, it is...

Claims

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Application Information

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IPC IPC(8): H01G9/20H01G9/04H01L51/42H01M14/00
CPCY02E10/542Y02E10/549
Inventor 矫士博
Owner IRICO
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