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Technological process for manufacturing cadmium telluride film solar cells

A technology of thin-film solar cells and process methods, applied in the direction of sustainable manufacturing/processing, circuits, electrical components, etc., can solve the problems of low utilization rate of raw materials, low photoelectric conversion efficiency, complex equipment structure, etc., and achieve high utilization rate of raw materials, High photoelectric conversion efficiency and fast film formation

Active Publication Date: 2011-02-02
微山县顺扬贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production method of cadmium telluride solar cells is the near-space sublimation method, which has the following disadvantages: 1. The equipment structure is complex, requiring high temperature control accuracy; 2. The source is complicated to manufacture, and the process requirements are high; 3. The photoelectric conversion efficiency obtained by production is low. ;4 Raw material utilization rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of technological method of making cadmium telluride thin-film solar cell, its steps are:

[0032] 1) Conductive glass cleaning;

[0033] 2) Vacuum evaporation deposition of cadmium sulfide;

[0034] Put the conductive glass cleaned in step 1 into a vacuum coating machine, vacuumize to 0.01pa, and the temperature is room temperature, and grow a cadmium sulfide film with a thickness of 50nm;

[0035] 3) Using gas transport to deposit cadmium telluride;

[0036] In the conductive glass grown with a certain thickness of cadmium sulfide film, in the gas transport deposition equipment, the equipment is evacuated to 1pa, the conductive glass is heated to 400 degrees Celsius, 0.1kg of cadmium telluride powder is put in the deposition source, and the deposition source Heating to 500 degrees Celsius, feeding gas into the deposition source, the conductive glass moves under the deposition source, the deposition time is 1 minute, and a cadmium telluride film with a thicknes...

Embodiment 2

[0045] A kind of technological method of making cadmium telluride thin-film solar cell, its steps are:

[0046] 1) Conductive glass cleaning;

[0047] 2) Vacuum evaporation deposition of cadmium sulfide;

[0048] Put the conductive glass cleaned in step 1 into a vacuum coating machine, evacuate to 0.008pa, keep the temperature at room temperature, and grow a cadmium sulfide film with a thickness of 100nm;

[0049] 3) Using gas transport to deposit cadmium telluride;

[0050] In the conductive glass grown with a certain thickness of cadmium sulfide film, in the gas transport deposition equipment, the equipment is vacuumed to 30pa, the conductive glass is heated to 600 degrees Celsius, 2kg of cadmium telluride powder is put in the deposition source, and the deposition source is heated. At 700 degrees Celsius, gas is introduced into the deposition source, the conductive glass moves under the deposition source, the deposition time is 4 minutes, and a cadmium telluride film with ...

Embodiment 3

[0059] A kind of technological method of making cadmium telluride thin-film solar cell, its steps are:

[0060] 1) Conductive glass cleaning;

[0061] 2) Vacuum evaporation deposition of cadmium sulfide;

[0062] Put the conductive glass cleaned in step 1 into a vacuum coating machine, evacuate to 0.001pa, keep the temperature at room temperature, and grow a cadmium sulfide film with a thickness of 300nm;

[0063] 3) Using gas transport to deposit cadmium telluride;

[0064] In the conductive glass grown with a certain thickness of cadmium sulfide film, in the gas transport deposition equipment, the equipment is vacuumed to 70pa, the conductive glass is heated to 800 degrees Celsius, 5kg of cadmium telluride powder is put in the deposition source, and the deposition source is heated. At 900 degrees Celsius, gas is introduced into the deposition source, the conductive glass moves under the deposition source, the deposition time is 8 minutes, and a cadmium telluride film with ...

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Abstract

The invention discloses a technological process for manufacturing cadmium telluride film solar cells, which has the advantages of simple method, low cost and high utilization factor of raw materials, and the like and comprises the following steps: 1) cleaning conductive glasses; 2) vacuum evaporating and depositing cadmium sulfide; 3) adopting gas transport to deposit cadmium telluride; 4) performing magnetron sputtering on deposited chromium; 5) performing magnetron sputtering on deposited molybdenum; 6) performing magnetron sputtering on deposited aluminum; and 7) finishing manufacture of solar cells.

Description

technical field [0001] The invention relates to a process for making a cadmium telluride thin film solar cell. Background technique [0002] At present, the production method of cadmium telluride solar cells is the near-space sublimation method, which has the following disadvantages: 1. The equipment structure is complex, requiring high temperature control accuracy; 2. The source is complicated to manufacture and requires high technology; 3. The photoelectric conversion efficiency obtained by production is low. ; 4 The utilization rate of raw materials is low. Contents of the invention [0003] The object of the present invention is to solve the above problems and provide a process for manufacturing cadmium telluride thin film solar cells with the advantages of simple method, low cost and high raw material utilization rate. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A kind of technological method of maki...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 王步峰李青海王景义
Owner 微山县顺扬贸易有限公司