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Light-positive controlling conductive device based on macro long multi-wall carbon nano tube bundle

A multi-wall carbon nanotube, positive light control technology, applied in semiconductor devices, nanotechnology, electrical components, etc., to achieve the effects of convenient fabrication, simple structure, and wide wavelength response range

Inactive Publication Date: 2005-07-20
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the design and manufacture of photoconductive devices using macroscopic long multi-walled carbon nanotube materials.

Method used

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  • Light-positive controlling conductive device based on macro long multi-wall carbon nano tube bundle
  • Light-positive controlling conductive device based on macro long multi-wall carbon nano tube bundle
  • Light-positive controlling conductive device based on macro long multi-wall carbon nano tube bundle

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Experimental program
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Embodiment Construction

[0011] The positive photoconductive device based on macroscopically long multi-walled carbon nanotube bundles provided by the present invention includes a multi-walled carbon nanotube bundle and two metal electrodes, wherein the multi-walled carbon nanotube bundle consists of many macroscopically long multi-walled carbon nanometer Bundle composition. Metal electrodes can be electrodes made of materials such as nickel, silver, copper, and tungsten. The manufacturing method is to connect the two ends of the multi-walled carbon nanotube bundle filament 2 with two metal electrodes 3 respectively, and then encapsulate it in a quartz glass cover 1 to form a positive light control conductance device. When working, first connect the positive and negative electrodes of the metal electrode to the external circuit, and then use a light beam 4 to directly irradiate the middle part of the carbon nanotube bundle filament 2 through the quartz glass cover 1, so that the total conductance of t...

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Abstract

The present invention relates to one kind of optoelectronic device. The positively light controlled electric conductive device based on macro length multiple-wall carbon nanotube beam consists of one multiple-wall carbon nanotube filament, two metal electrodes connected separately to two ends of the multiple-wall carbon nanotube filament and one quartz glass cover to enclose. During work, the metal electrodes are connected to external circuit and the carbon nanotube filament is irradiated with light beam. Experiment shows that the total device conductivity raises with increased light beam strength and lowers with decreased light beam strength, and the total device conductivity variance is always greater than or equal to zero whatever the incident light strength is. The present invention as one new kind of light controlled electric conductive device has responded light wavelength of 405-1064 nm and optoelectronic response time less than 5 sec.

Description

technical field [0001] The invention relates to the design and manufacture of an important optoelectronic device, in particular to the design and manufacture of a positive photoelectrically controlled conductance device based on macroscopic long multi-walled carbon nanotube bundles. Background technique [0002] The use of photoconductive devices can effectively control the change of the conductance (resistance) value in the device through optical means, and then can change the magnitude of electrical quantities such as current or voltage in the device, and achieve the purpose of optically controlling the intensity of electrical signals; conversely, It is also possible to measure the magnitude of the electrical quantity in the photoconductive device, and then detect the intensity of the optical signal incident on the photoconductive device, so as to achieve the purpose of measuring the intensity of the optical signal by electrical methods. Therefore, the photoconductive devic...

Claims

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Application Information

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IPC IPC(8): B82B1/00G01J1/00H01L31/08
Inventor 韦进全孙家林朱嘉麟王昆林吴德海
Owner TSINGHUA UNIV