Manufacturing method of colored solar batteries

A solar cell and color technology, applied in the field of solar photovoltaic, can solve the problems of single appearance design of buildings, affect the aesthetics of buildings, and incongruent collocation, etc., and achieve the effect of uniform surface, uniform size, and easy control of thickness.

Inactive Publication Date: 2011-09-21
赵枫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when conventional solar cells are used in building integrated photovoltaics, the color will be relatively monotonous, which is not coordinated with many buildings. It is very single in the exterior design of the building, which affects the beauty of the building.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Follow the steps below to make a colored solar cell:

[0020] (1) Selecting 200 grams of magnesium fluoride and yttrium oxide particles with a purity of 99.995% respectively as the evaporation source, the particle size is 3mm;

[0021] (2) Select the crystalline silicon cell, clean the crystalline silicon cell in a thousand-class clean room, mask the front electrode of the crystalline silicon cell and put it into the rotating frame of the electron beam evaporation equipment;

[0022] (3) Put the evaporation source into the crucible, start the substrate heating device, the substrate temperature is 80°C, and vacuumize to a pressure of 2×10 -4 Pa;

[0023] (4) Start the electron gun power supply, carry out evaporative coating on the surface of the crystalline silicon cell, the evaporating voltage is 6KV, the filament current is 10mA, first deposit a 20nm thick magnesium fluoride thin film, then deposit a 40nm thick yttrium oxide thin film , and then deposit a layer of 20...

Embodiment 2

[0025] Follow the steps below to make a colored solar cell:

[0026] (1) Selecting 200 grams of magnesium fluoride and yttrium oxide particles with a purity of 99.995% respectively as the evaporation source, the particle size is 3mm;

[0027] (2) Select the crystalline silicon cell, clean the crystalline silicon cell in a thousand-class clean room, mask the front electrode of the crystalline silicon cell and put it into the rotating frame of the electron beam evaporation equipment;

[0028] (3) Put the evaporation source into the crucible, start the substrate heating device, the substrate temperature is 100°C, and vacuumize to a pressure of 8×10 -5 Pa;

[0029] (4) Start the electron gun power supply, carry out evaporation coating on the surface of the crystalline silicon cell, the evaporation voltage is 8KV, the filament current is 500mA, first deposit a 30nm thick magnesium fluoride film, and then deposit a 20nm thick yttrium oxide film , and then deposit a 30nm thick magn...

Embodiment 3

[0031] Follow the steps below to make a colored solar cell:

[0032] (1) choose 200 grams of magnesium fluoride and yttrium oxide particles with a purity of 99.995% respectively as the evaporation source, and the particle size is 2mm;

[0033] (2) Select the crystalline silicon cell, clean the crystalline silicon cell in a thousand-class clean room, mask the front electrode of the crystalline silicon cell and put it into the rotating frame of the electron beam evaporation equipment;

[0034] (3) Put the evaporation source into the crucible, start the substrate heating device, the substrate temperature is 120°C, and vacuumize to a pressure of 6×10 -5 Pa;

[0035] (4) Start the electron gun power supply, carry out evaporative coating to the surface of the crystalline silicon cell, the evaporating voltage is 6KV, and the filament current is 100mA, first deposit a 20nm thick magnesium fluoride thin film, and then deposit a 30nm thick yttrium oxide thin film, depositing a 20nm th...

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Abstract

The invention discloses a manufacturing method of colored solar batteries, comprising the following steps: (1) preparing an electron beam evaporation source, and selecting magnesium fluoride particles and yttrium oxide particles, wherein, the size of the magnesium fluoride particle is 1mm-3mm; the purity of the magnesium fluoride is larger than 99.995%, the yttrium oxide particle is 1mm-5mm, and the purity of the yttrium oxide is larger than 99.995%; (2) preparing a battery plate substrate, selecting a crystalline silicon battery plate, cleaning the crystalline silicon battery plate in a class 1000 clean room, and packaging the crystalline silicon battery plate into a rotating frame of electron beam evaporation equipment after the positive electrode of the crystalline silicon battery plate is masked; (3) respectively packaging the magnesium fluoride particles and the yttrium oxide particles into a crucible of the electron beam evaporation equipment, vacuumizing and starting a substrate heating device; and (4) opening an electron gun power source, and carrying out evaporation coating on the surface of the crystalline silicon battery plate to form a colored composite thin film, so as to prepare into a colored solar battery. By utilizing the manufacturing method provided by the invention, the colored color solar battery with multiple colors can be prepared.

Description

technical field [0001] The invention relates to the field of solar photovoltaics, in particular to a method for preparing a colored solar cell. Background technique [0002] At present, there are many types of solar cells, mainly including three categories: silicon-based solar cells, compound semiconductor solar cells and organic solar cells. The color of these solar cells is generally blue or black. Crystalline silicon solar cells display blue due to the deposition of a silicon nitride film on its surface as an anti-reflection film, and compound semiconductor solar cells and organic solar cells are generally black. The color displayed by the solar cell is because it reflects the light of this color. The conventional blue solar cell uses plasma enhanced chemical vapor deposition (PECVD) to deposit a layer of silicon nitride film with a thickness of about 75nm on the surface of the cell. And it shows blue, the thickness of the film is different, and the color of the battery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 赵枫
Owner 赵枫
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