Dye-sensitized solar cell counter electrode material prepared by using eggshell membrane and method

A technology of solar cells and dye sensitization, which is applied in the field of solar cells, can solve the problems of loss, electron collection and conversion efficiency reduction, expensive platinum electrodes, etc., and achieve simple process and environment-friendly effects

Inactive Publication Date: 2015-11-18
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Pt electrodes have many advantages and excellent performance, the price of platinum electrodes is too expensive, accounting for almost 60% of the entire battery cost
For one-dimensional inorganic nano-semiconductor materials, because electrons are easily trapped and lost at the interface and space when conducting through disordered nanoparticles, the collection and conversion efficiency of electrons is reduced.

Method used

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  • Dye-sensitized solar cell counter electrode material prepared by using eggshell membrane and method
  • Dye-sensitized solar cell counter electrode material prepared by using eggshell membrane and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The method for preparing a dye-sensitized solar cell counter electrode material using eggshell membranes adopts the following steps:

[0020] (1) Take a fresh eggshell, peel off the white egg membrane inside the shell, wash and dry it with deionized water, and soak it in 0.6mol / L hydrochloric acid for 5 hours. Then rinse with deionized water for 3 times and dry in a drying oven at 60°C;

[0021] (2) According to the principle that the molar ratio of Cu:In:S atoms in the solution is 1:0.5:2, copper sulfate (CuSO 4 ), indium chloride (InCl 3 ) and thioacetamide (C 2 h 5 NS), stirred at room temperature for 5 to obtain a copper-sulfur-indium precursor;

[0022] (3) Put the eggshell membrane obtained in step (1) into the CuInS obtained in step (2) 2 Precursor solution, soaked at room temperature for 10 hours, then rinsed with deionized water for 3 times, and dried at 50°C for 10 hours;

[0023] (4) Place the egg membrane with the copper-sulfur-indium precursor adsorbe...

Embodiment 2

[0027] The method for preparing a dye-sensitized solar cell counter electrode material using eggshell membranes adopts the following steps:

[0028] (1) Take a fresh eggshell, peel off the white egg membrane inside the shell, wash and dry it with deionized water, and soak it in 0.7mol / L hydrochloric acid for 7 hours. Then rinse with deionized water for 3 times, and dry in a drying oven at 70°C;

[0029] (2) Add copper sulfate (CuSO 4 ), indium chloride (InCl 3 ) and thioacetamide (C 2 h 5 NS), stirred at room temperature for 6h to obtain the precursor solution of copper-sulfur-indium;

[0030] (3) Put the eggshell membrane obtained in step (1) into the CuInS obtained in step (2) 2 Precursor solution, soaked at room temperature for 12 hours, then rinsed with deionized water for 3 times, and dried at 60°C for 10 hours;

[0031] (4) Place the egg film with the copper-sulfur-indium precursor adsorbed in step (3) in a vacuum sintering furnace, and carbonize at 550°C for 3h in...

Embodiment 3

[0034]The method for preparing a dye-sensitized solar cell counter electrode material using eggshell membranes adopts the following steps:

[0035] (1) Take a fresh eggshell, peel off the white egg membrane inside the shell, wash and dry it with deionized water, and soak it in 1.0mol / L hydrochloric acid for 15 hours. Then rinse with deionized water for 3 times and dry in a drying oven at 80°C;

[0036] (2) Add copper sulfate (CuSO 4 ), indium chloride (InCl 3 ) and thioacetamide (C 2 h 5 NS), stirred at room temperature for 12h to obtain a copper-sulfur-indium precursor;

[0037] (3) Put the eggshell membrane obtained in step (1) into the CuInS obtained in step (2) 2 Precursor solution, soaked at room temperature for 16 hours, then rinsed with deionized water for 3 times, and dried at 80°C for 10 hours;

[0038] (4) Put the egg film adsorbed with copper-sulfur-indium precursor obtained in step (3) in a vacuum sintering furnace, and carbonize at 700°C for 5h in an argon a...

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Abstract

The present invention relates to a method for preparing a dye-sensitized solar cell counter electrode material by using an eggshell membrane. An eggshell membrane which is common garbage in daily life is used as a raw material, and through the methods of acid treatment, liquid phase immersion and carbonization, the three-dimensional porous sub-micron carbon fiber network material of a load copper sulfide indium nanocrystal is prepared and is applied to the counter electrode of a dye-sensitized solar cell. The specific preparation method comprises the steps of peeling an eggshell internal membrane from a fresh egg and processing the eggshell internal membrane by using dilute hydrochloric acid, after washing and drying, placing the eggshell internal membrane in a solution containing a copper sulfide indium former body, and obtaining the carbonized eggshell membrane of the load copper sulfide indium nanocrystal. According to the method, the eggshell membrane is used to prepare the dye-sensitized solar cell counter electrode material, a three-dimensional porous network structure is provided, a fiber scale is in a sub-micron level, the copper sulfide indium nano particles of the load have a large specific surface area, the penetration of the electrolyte and the transmission of electrons are facilitated, and more catalytically active sites are provided for the oxidation-reduction reaction of an electrolysis pair.

Description

technical field [0001] The invention belongs to the field of solar cells, and relates to a three-dimensional porous submicron carbon fiber network electrode material loaded with copper-sulfur-indium nanocrystals and a preparation method thereof. In particular, it relates to a preparation method applicable to a counter electrode of a dye-sensitized solar cell. Background technique [0002] With the continuous development of the world economy, the demand for energy in human society is increasing, and the geological reserves of non-renewable fossil energy such as oil and coal are gradually depleted, and the resulting greenhouse effect is becoming increasingly apparent. The development of new energy has become an important issue to be solved for the sustainable development of human beings. Among various renewable energy sources, solar energy is favored for its advantages such as cleanness, safety in use, abundant resources, low utilization cost and no limitation of geographical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042H01G9/20
CPCY02E10/542
Inventor 何建新王利丹周梦娟谭卫琳韩啟明连艳平丁彬崔世忠
Owner ZHONGYUAN ENGINEERING COLLEGE
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