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Carbon nano tube film-based solar energy battery and its preparing method

A technology of carbon nanotube film and solar cell, which is applied in the direction of nanotechnology, nanotechnology, and nanotechnology for information processing, can solve the problems of low service life, complicated manufacturing process, and low conversion efficiency of solar cells, and achieve improved The effect of service life, simple preparation method and low manufacturing cost

Active Publication Date: 2007-07-11
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a solar cell based on carbon nanotube film and its preparation method aiming at the shortcomings and defects of low conversion efficiency, complex manufacturing process and low service life of solar cells in the prior art. Electrical and optical properties of carbon nanotubes for better solar cell conversion efficiency and longer service life

Method used

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  • Carbon nano tube film-based solar energy battery and its preparing method
  • Carbon nano tube film-based solar energy battery and its preparing method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) Use silver glue to stick the copper mesh on the surface of one side of the silicon chip substrate 2, solidify for 24 hours, use it as the back electrode 3 of the carbon nanotube thin film solar cell, and lead it out with a wire;

[0031] (2) Place the purified double-walled carbon nanotubes in deionized water. At this time, the carbon nanotubes are agglomerated, and an ethanol solution is added dropwise thereon, and the double-walled carbon nanotubes are spread into a film with a thickness of 100 nm;

[0032] (3) transfer the double-walled carbon nanotube film after spreading to the side surface of the silicon wafer substrate 2 where the back electrode 3 is not prepared;

[0033] (4) The double-walled carbon nanotube film is dried under an infrared lamp, and the double-walled carbon nanotube film is in close contact with the silicon wafer substrate. The double-walled carbon nanotube film is used as the upper electrode of the solar cell, and is led out by wires.

[...

Embodiment 2

[0036] (1) Use silver glue to stick the copper mesh on the surface of the silicon chip substrate 2, and bake the copper mesh for 3 hours under an infrared lamp to solidify it as the back electrode 3 of the carbon nanotube thin film solar cell, and use Wire leads;

[0037] (2) Place the purified single-walled carbon nanotubes in deionized water. At this time, the carbon nanotubes are agglomerated, and an acetone solution is added dropwise thereon, and the single-walled carbon nanotubes are spread into a film with a thickness of 50 nm;

[0038] (3) transfer the single-walled carbon nanotube film 1 to the silicon wafer substrate 2 on the side surface where the back electrode is not prepared;

[0039] (4) Place the combination of the single-walled carbon nanotube film and the silicon wafer substrate obtained in step (3) in a drying oven at a temperature of 50° C. for 3 hours, so that the single-walled carbon nanotube film is in close contact with the silicon wafer substrate . Th...

Embodiment 3

[0042] (1) Put the slide glass 4 wiped clean with acetone into the intermediate frequency AC magnetron sputtering coating machine. With ZnO as the target material, the temperature of the glass slide is 250°C, and the background vacuum is 3.0×10 -3 Pa, argon pressure is 0.8Pa, target power density is 3W / cm 2 , deposition time 70s. A zinc-aluminum oxide film 5 with a thickness of about 100 nm is obtained by deposition;

[0043] (2) Use silver glue to stick the copper grid to the surface of the silicon wafer substrate 2, and bake the copper grid for 3 hours under an infrared lamp to solidify it as the back electrode 3 of the carbon nanotube thin film solar cell, and use Wire leads;

[0044] (3) Ultrasonic the prepared fixed-walled carbon nanotubes for 1 hour to fully disperse them;

[0045] (4) Transfer the fully dispersed carbon nanotubes to the surface of the silicon wafer substrate on which the back electrode is not prepared to obtain a carbon nanotube film 1 with a thickn...

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Abstract

This invention relates to solar energy battery of carbon nanometer tube film and its process method in solar battery and nanometer material application technique field, which comprises the following technique: adopting carbon nanometer tube film as photo electricity conversion materials with carbon nanometer film as upper electrode; the film is set with transparent conductive film as conversion materials; the film is used as upper electrode.

Description

technical field [0001] The invention relates to a solar cell and its preparation technology, in particular to a carbon nanotube thin film used as a photoelectric conversion material solar cell and a preparation method thereof, belonging to the technical field of solar cells and nanomaterial applications. Background technique [0002] Solar energy is the cleanest energy today, inexhaustible and inexhaustible. The solar energy received by the earth every 40 seconds is equivalent to the energy of 21 billion barrels of oil, which is equivalent to the sum of the energy consumed by the whole world in one day. The utilization of solar energy includes light energy-thermal energy conversion, light energy-electric energy conversion, light energy-chemical energy conversion. A solar cell is a typical example of light-to-electricity conversion, which is made using the photovoltaic principle of semiconductor materials. According to different types of semiconductor photoelectric conversi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/042H01L31/02H01L31/0232H01L31/0224H01L31/18
CPCB82Y10/00H01L31/022466H01L31/072H01L51/444H01L51/4253H01L31/1884H01L51/0048H01L31/035281Y02E10/549Y02P70/50H10K85/221H10K30/821H10K30/30
Inventor 贾怡韦进全舒勤科王昆林庄大明张弓刘文今骆建彬王志诚吴德海
Owner TSINGHUA UNIV
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