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Solar cell flexible counter electrode preparing method

A technology for solar cells and electrodes, applied in the field of solar cells, can solve problems such as not being well proposed, and achieve the effects of wide applicability, cost reduction and cost reduction

Inactive Publication Date: 2008-07-30
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Solar cell flexible counter electrode preparing method

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preparation example Construction

[0021] The preparation method of the solar cell flexible counter electrode is as follows:

[0022] (1) Selection of substrate: select the flexible body of oxidation-resistant metal filaments with a fineness below 50 μm as the substrate of the flexible counter electrode of the solar cell. For material selection, not only anti-oxidation metal filaments, but also four other flexible materials can be selected as the substrate of the flexible counter electrode of solar cells:

[0023] 1. Fabrics made of oxidation-resistant metal filaments with a fineness of 50 μm;

[0024] 2. Antioxidant polymer filaments with a fineness of 50 μm;

[0025] 3. Fabrics made of antioxidant polymer filaments with a fineness of 50 μm;

[0026] 4. Polymer film with thickness less than 2mm;

[0027] If the fabric or film is selected as the counter electrode substrate, the fabric or film is cut into a substrate whose area size and shape are equivalent to the nanocrystal film on the surface of the anode....

Embodiment 1

[0047] Example 1: A nickel metal filament with a fineness of 10 μm is selected as the substrate of a flexible counter electrode of a solar cell. According to the area of ​​the nanocrystal film on the surface of the anode 1cm 2 , to intercept 35cm long nickel wire to prepare the counter electrode. will be 120cm 3The platinum-plating electroplating solution was placed at 60°C and heated for 3 minutes, and then the titanium mesh and the intercepted wire were put into the electroplating solution together, and at the same time, it was ensured that the titanium mesh and the substrate were not in contact together. Connect the anode of the DC power supply to the titanium mesh with a wire, and connect the cathode of the DC power supply to the nickel metal filament. Electroplate nickel metal filaments with 10mA direct current for 3 minutes, take them out and wash them in 80°C water for 1 minute, then dehumidify and dry them. After completion, a 3 μm platinum metal catalytic layer is ...

Embodiment 2

[0048] Example 2: A woven fabric made of polyester filaments with a fineness of 20 μm is selected as the base material of the flexible counter electrode of the solar cell. According to the area of ​​the nanocrystal film on the surface of the anode 1cm 2 , to intercept 1cm 2 The polyester fabric was used to prepare the counter electrode. The intercepted fabric is placed in a small vacuum evaporation machine, and the platinum target is also placed on the target position of the vacuum evaporation machine. Start the machine, implement coating, and coat a catalytic layer of 3 μm on the surface of the polyester fabric. After being taken out, it can be used as the opposite electrode of the dye-sensitized nanocrystalline solar cell.

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Abstract

This invention relates to a preparation method for flexible pair electrode of a dye sensitized nm crystal solar energy battery, which utilizes a flexible body with a catalyst function as the pair electrode of a dye sensitized nm crystal solar energy battery and plates a catalyst layer on the surface of a selected flexible matrix to turn a rigid pair electrode to that of flexible and lays a foundation for the flexibility of said solar energy batteries.

Description

technical field [0001] The invention relates to a method for preparing a flexible counter electrode of a dye-sensitized nanocrystalline solar cell, which belongs to the technical field of solar cells, and specifically uses a flexible body with a catalytic function as a counter electrode of a dye-sensitized nanocrystalline solar cell. Background technique [0002] Since 1991 M. Professor reports based on dye-sensitized nanoporous TiO 2 Since the efficiency of thin-film solar cells has reached 7.1%, since dye-sensitized nanocrystalline solar cells can overcome the shortcomings of silicon solar cells, and have the advantages of simple manufacturing process, low material purity requirements, and low prices, scientists from all over the world are interested in it. It has done a lot of research. [0003] Dye-sensitized nanocrystalline solar cells use wide-bandgap semiconducting nanocrystalline films that absorb photosensitizers on the surface as working electrodes. Because nano...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L51/48H01G9/20H01M14/00
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 徐卫林杨红军沈小林崔卫钢
Owner WUHAN TEXTILE UNIV
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