Organic solar cell based on carbon nanotube fiber and preparation method thereof

A technology of carbon nanotube fibers and solar cells, which is applied in the field of solar cells, can solve the problems of inconvenient use, and achieve the effects of adjustable diameter, good monochromatic light quantum efficiency, and high energy conversion efficiency

Inactive Publication Date: 2011-03-02
FUDAN UNIV
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Problems solved by technology

[0003] In addition, typical solar cells are planar, which is not easy to use in many application fields, especially portable and highly integrated devices 10, 11 sup>

Method used

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  • Organic solar cell based on carbon nanotube fiber and preparation method thereof
  • Organic solar cell based on carbon nanotube fiber and preparation method thereof
  • Organic solar cell based on carbon nanotube fiber and preparation method thereof

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Embodiment Construction

[0037] Fe(1nm) / Al 2 o 3 (10nm) / SiO 2 / Si as a catalyst was synthesized using typical chemical vapor deposition in a quartz tube of a tube furnace. Details of the synthesis and self-assembly of carbon tubes in fibers have been reported elsewhere. The spinning speed of the microprobes varies from 1000 rpm to 3000 rpm. Dye N719 was purchased from Solaronix and used without further purification. Conductive glass (composed of fluorine-doped SnO2, with a transmittance of 90% and a sheet resistance of 15W) was purchased from Nippon Sheet Glass Co., and cleaned with ethanol, acetone, and Milli-Q Millipore ultrapure water before use. The composition of the electrolyte used was 0.1 M LiI, 0.05 M I2, 0.6 M dimethyl-3-N-propylimidazolium iodine and 0.5 M tert-butylpyridine dissolved in dehydrated acetonitrile. Conductive glass and platinum-modified The conductive glass is used as the working electrode and the counter electrode of the battery respectively.

[0038]The structure of ca...

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Abstract

The invention belongs to the technical field of solar cells and in particular relates to an organic solar cell based on a carbon nanotube fiber and a preparation method thereof. In the invention, a carbon nanotube fiber sensitized by N719 serves as a working electrode material, FTO conducting glass or a FTO-PEN conductive plastic serves as the substrate of the working electrode and a counter electrode and anhydrous acetonitrile solution of LiI, I2, dimethyl-3-N-propyl group imidazole iodine and butyl group pyridine serves as electrolyte. Short-circuit photocurrent of the solar cell reaches 10.3mA/cm<2>, the maximum monochromatic light photoelectric conversion efficiency is over 90% and energy conversion efficiency reaches 2.2%.In particular, a Pt/FTO conductive plastic is used for preparing a flexible bendable organic solar cell, the scope of available materials of the efficient solar cell is expanded and a novel approach is provided for manufacturing novel, efficient and practical photovoltaic devices.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a high-efficiency solar cell of carbon nanotube fibers and a preparation method thereof. Background technique [0002] Carbon nanotubes due to their large specific surface area (such as single-walled carbon nanotubes 1600m 2 / g) 1 and excellent electrical properties 2 , are widely used in the fabrication of high-efficiency organic solar cells. For example, the incorporation of carbon nanotubes in titanium dioxide nanoparticle films can increase the roughness of the film and reduce the coupling of electron-hole pairs. 3, 4 ; use carbon nanotubes instead of platinum as the counter electrode to catalyze the reduction of triiodide 5 , thereby improving the performance of the battery. In polymer solar cells, the distribution of carbon tubes in the electron donor layer can improve the short-circuit current density and fill factor, because the charge is separated at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/46H01L51/48
CPCY02E10/549
Inventor 彭慧胜王忠胜陈涛王书涛仰志斌
Owner FUDAN UNIV
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