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A kind of sensitized solar cell counter electrode material and preparation method thereof

A solar cell and electrode material technology, applied in photosensitive equipment, electrolytic capacitors, circuits, etc., can solve problems such as limited application range, low photoelectric conversion efficiency, and small specific surface area, so as to alleviate energy shortage, improve photoelectric conversion efficiency, Good catalytic performance

Active Publication Date: 2018-02-06
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sensitized solar cell counter electrode material and its preparation method to solve the problem that the counter electrode prepared by existing commonly used materials is either expensive, limited in application range, or has a small specific surface area, poor catalytic performance, photoelectric Problems of low conversion efficiency and narrow scope of application

Method used

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  • A kind of sensitized solar cell counter electrode material and preparation method thereof
  • A kind of sensitized solar cell counter electrode material and preparation method thereof
  • A kind of sensitized solar cell counter electrode material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] (1) First dissolve polyacrylonitrile (PAN) in 25mL dimethylformamide (DMF), where the mass percentage of PAN is 15%, stir at room temperature until uniform, transparent and viscous, and then transfer it into a 10 mL syringe , install a needle with a length of about 25 cm and a diameter of about 0.7 mm at the front end of the syringe; turn on the high-voltage electrostatic device, adjust the voltage to 10 kV, start spinning, collect evenly distributed PAN filaments at the receiving plate, and spin the spun PAN The raw silk is placed in a tubular reaction furnace, and the temperature rise rate in the carbonization furnace is adjusted to 1°C / min, so that the carbonization chamber is raised from room temperature to 270°C, and kept for 1 hour to pre-oxidize the polyacrylonitrile; the pre-oxidized polyacrylonitrile Acrylonitrile in N 2 Under protection, control the heating rate at 1°C / min to raise the temperature to 1000°C, cool to room temperature, and prepare polyacrylonitr...

Embodiment 2

[0030] (1) First, dissolve a certain amount of PAN in 25mL of DMF to prepare a PAN mass percentage of 13%, stir at room temperature until it is uniform, transparent and viscous, then transfer it into a 10 mL syringe, and install it on the front end of the syringe A needle with a length of about 25 cm and a diameter of about 0.6 mm; turn on the high-voltage electrostatic device, adjust the voltage to 11 kV, start spinning, collect PAN filaments evenly at the receiving plate, and put the spun PAN precursors in a tubular reactor , the temperature rise rate in the carbonization furnace is adjusted to 1°C / min, and the carbonization chamber is raised from room temperature to 270°C, and kept for 1 hour to pre-oxidize the polyacrylonitrile; the pre-oxidized polyacrylonitrile is placed in N 2 Under protection, control the heating rate of 1 °C / min to 1000 °C, cool to room temperature, and prepare polyacrylonitrile carbon nanofibers, which are black fiber cloth; the average thickness is a...

Embodiment 3

[0033] (1) First dissolve polyacrylonitrile (PAN) in 25mL dimethylformamide (DMF), in which the mass percentage concentration of PAN is 12%, stir at room temperature until uniform, transparent and viscous, and then transfer it into a 10 mL syringe , install a needle with a length of about 25 cm and a diameter of about 0.7 mm at the front end of the syringe; turn on the high-voltage electrostatic device, adjust the voltage to 8 kV, start spinning, and collect the PAN silk evenly at the receiving plate, and the spun PAN raw silk Put it in a tubular reaction furnace, adjust the temperature rise rate in the carbonization furnace to 1°C / min, raise the carbonization chamber from room temperature to 270°C, and keep it for 1 hour to pre-oxidize the polyacrylonitrile; pre-oxidize the polyacrylonitrile in N 2 Under protection, control the heating rate of 1 °C / min to 1000 °C, cool to room temperature, and prepare polyacrylonitrile carbon nanofibers, which are black fiber cloth; the avera...

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Abstract

The invention discloses a sensitized solar cell counter electrode material, comprising polyacrylonitrile carbon nanofibers and loads, the loads are loaded on the polyacrylonitrile carbon nanofibers, and the loads are noble metals, metal carbonized One of the compounds, metal nitrides or metal oxides; the preparation method is to dissolve polyacrylonitrile in dimethylformamide, inject it into a high-voltage electrospinning machine for spinning, and carbonize it to obtain polyacrylonitrile carbon nano Fiber: loading the load on the polyacrylonitrile carbon nanofiber through sintering, vapor deposition or magnetron sputtering to prepare a sensitized solar cell counter electrode material. The preparation process provided by the present invention is simple, easy to operate, and low in cost. The prepared solar cell counter electrode material has uniform texture and good catalytic performance. Using the prepared counter electrode in a sensitized solar cell can effectively improve the photoelectric conversion efficiency. It has played a great role in promoting the industrialization of sensitized solar cells.

Description

technical field [0001] The invention relates to a solar cell component material and a preparation method thereof, in particular to a light-sensitized solar cell counter electrode material and a preparation method thereof. Background technique [0002] The use of green, clean and pollution-free solar energy has become the first choice for people to alleviate the problem of energy scarcity in modern society. As the third generation of solar cells, photosensitized solar cells are known as the vanguard of new green energy in photoelectric conversion devices. Photosensitized solar cells mainly include dye-sensitized solar cells and quantum dot-sensitized solar cells. Its main structure includes: photoanode (TiO 2 , SnO 2 , ZnO, etc.), sensitizers (dye, quantum dots, etc.), electrolyte (I 3- / I - , Sn 2- / S 2- 、((CH 3 ) 4 N) 2 S / ((CH 3)4 N) 2 Sn, etc.), the electrode consists of four parts. Among them, the counter electrode is an important part of the sensitized solar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/042
Inventor 李玲张文明李晓苇傅广生袁小先董国义肖俊莹陈瑞雪王明坤
Owner HEBEI UNIVERSITY
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