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Counter electrode material of sensitized solar battery and manufacturing method of counter electrode material

A technology for solar cells and electrode materials, applied in photosensitive devices, electrolytic capacitors, circuits, etc., can solve the problems of limited application scope, low photoelectric conversion efficiency, small specific surface area, etc., to alleviate energy shortage, improve photoelectric conversion efficiency, Good catalytic performance

Active Publication Date: 2015-07-29
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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  • Counter electrode material of sensitized solar battery and manufacturing method of counter electrode material
  • Counter electrode material of sensitized solar battery and manufacturing method of counter electrode material
  • Counter electrode material of sensitized solar battery and manufacturing method of counter electrode material

Examples

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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 counter electrode material of a sensitized solar battery. The counter electrode material comprises polyacrylonitrile carbon nanofibers and load, and the load is carried on the polyacrylonitrile carbon nanofibers and is one of precious metal, metal carbide, metal nitride or metal oxide. A manufacturing method of the counter electrode material includes the steps of solving polyacrylonitrile in dimethyl formamide, injecting into a high-voltage static spinning machine for spinning, carbonizing to obtain the polyacrylonitrile carbon nanofibers, and enabling the load to be carried on the polyacrylonitrile carbon nanofibers by means of sintering, evaporating or magnetron sputtering so as to obtain the counter electrode material of the sensitized solar battery. The manufacturing method is simple in manufacturing technology, easy to operate and low in cost; the manufactured counter electrode material of the sensitized solar battery is uniform in quality and good in catalytic performance; by means of applying manufactured counter electrodes to the sensitized solar battery, photoelectric converting efficiency can be improved greatly, and industrialized popularization of the sensitized solar battery can be promoted greatly.

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 Applications(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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