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Method for preparing solar cell in inverse opal composite structure

A technology of solar cells and composite structures, applied in the direction of photosensitive equipment, etc., can solve the problems of low light utilization rate and achieve the effects of wide applicability, increased current, and improved efficiency

Inactive Publication Date: 2014-10-22
LIAONING ELECTRIC POWER DEV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing solar cells with an inverse opal composite structure in order to overcome the defects of low utilization rate of light in existing stacked solar cells

Method used

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  • Method for preparing solar cell in inverse opal composite structure
  • Method for preparing solar cell in inverse opal composite structure
  • Method for preparing solar cell in inverse opal composite structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1. Preparation of colloidal crystal template

[0043] The silicon wafer was ultrasonically cleaned with distilled water for 10 minutes to remove floating dust, then scrubbed with acetone, then ultrasonically cleaned with absolute ethanol for 10 minutes, then ultrasonically cleaned in ultrapure water for 10 minutes, and finally dried in nitrogen flow; Colloidal microspheres and ultrapure water are put into a flat-bottomed test tube to prepare polystyrene microspheres with a mass concentration of 0.01%, a particle size distribution of 100nm-1000nm, good monodispersity, and a particle size deviation of figure 2 The self-assembled colloidal crystal template shown;

[0044] 2. Preparation of titanium dioxide inverse opal

[0045] 1. Preparation of titanium dioxide sol

[0046] A solution: 2.43ml butyl titanate and 8.08ml absolute ethanol were mixed and stirred for 15-20min;

[0047]Solution B: 0.5ml ultrapure water + 10ml absolute ethanol + 0.01ml 37wt% concentrated hydro...

Embodiment 2

[0056] 1. Preparation of colloidal crystal template

[0057] Ultrasonic the copper sheet with distilled water for 20 minutes to remove floating dust, then scrub it with acetone, then ultrasonically clean it with absolute ethanol for 20 minutes, then ultrasonically clean it in ultrapure water for 20 minutes, and finally dry it in nitrogen flow; Colloidal microspheres and ultrapure water are put into a flat-bottomed test tube to prepare polystyrene microspheres with a mass concentration of 3%, microsphere particle size distribution of 100nm-900nm, good monodispersity, and particle size deviation <3%. Emulsion, immerse the cleaned copper sheet in the polystyrene microsphere emulsion, the immersion angle of the copper sheet is 75° with the emulsion liquid surface, and then place the flat-bottomed test tube in a thermostat with a temperature of 55°C for 72 hours, keep The relative humidity in the incubator is 75%-80%. After the solvent is completely volatilized, the self-assembled ...

Embodiment 3

[0070] 1. Preparation of colloidal crystal template

[0071] Ultrasonic the nickel sheet with distilled water for 15 minutes to remove floating dust, then scrub it with acetone, then ultrasonically clean it with methanol for 15 minutes, then ultrasonically clean it in ultrapure water for 15 minutes, and finally dry it in nitrogen flow; Put the spherical particles and 1% ethanol aqueous solution into a flat-bottomed beaker, and prepare polystyrene with a mass concentration of 0.5%, a microsphere particle size distribution of 100nm-1000nm, good monodispersity, and a particle size deviation of <3%. Microsphere emulsion, immerse the cleaned nickel sheet in the polystyrene microsphere emulsion, the immersion angle of the nickel sheet is 80° to the emulsion liquid surface, and then place the flat-bottomed beaker in a thermostat with a temperature of 50°C for 48 hours , keeping the relative humidity in the incubator at 70%-75%, and after the solvent is completely volatilized, a self-...

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Abstract

The invention belongs to the field of manufacturing of solar cells, provides a method for preparing a solar cell in an inverse opal composite structure and aims to solve problems of small contact area of two substances and low light utilization rate in terms of simple thin film laminations of existing laminated solar cells. According to the method, firstly, colloidal crystals are prepared on a substrate in a self-assembly mode, the substrate where the colloidal crystals grow serves as a working electrode, microsphere gaps are padded with a titanium dioxide semiconductor by a sol-gel method, a form board is removed to obtain a three-dimensional orderly macroporous titanium dioxide thin film material, a three-dimensional macroporous titanium dioxide thin film serves as a working electrode, and three-dimensional macroporous gaps are padded with a cuprous oxide semiconductor by an electrochemical deposition method to obtain the solar cell in the inverse opal composite structure. According to the method for preparing the solar cell in the inverse opal composite structure, by means of three methods of utilizing photonic band gap features of photonic crystals, applying scattering properties of a three-dimensional orderly structure to change photon state distribution, and increasing the contact area of two materials, the light utilization rate of laminated solar cells can be greatly increased.

Description

technical field [0001] The invention belongs to the field of solar cell manufacturing, and in particular relates to a method for preparing a solar cell with an inverse opal composite structure. Background technique [0002] With the increasingly severe energy problems, people's research on solar energy is becoming more and more urgent and in-depth. Solar cells are the most direct form of photoelectric conversion of solar energy, and are popular among people. At present, the types of solar cells have expanded from single-crystal silicon, polycrystalline silicon, amorphous silicon and thin-film silicon cells of the silicon series to single-junction and multi-junction solar cells formed by III-V semiconductors (such as GaAs, InP, etc.), and in recent years The rise of dye-sensitized, quantum dot-sensitized solar cells, etc., and the changes in the structure and types of solar cells are mainly to seek batteries with lower cost, better stability, and higher cost performance. As...

Claims

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Application Information

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IPC IPC(8): H01G9/20
Inventor 全凤岐李春东赵庆杞张宏宇于海俊黄浩杨轶薛激光王梦飞和栩生朱冰丁艳波邵千智杜远卓孙潇琳
Owner LIAONING ELECTRIC POWER DEV
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