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High catalytic activity sulfide hybridization counter electrode for flexible dye-sensitized solar cell and preparation method thereof

A technology of solar cells and high catalytic activity, applied in the field of solar cells, can solve the problems of increasing the preparation cost of DSSC, hindering the progress of industrialization of DSSC, high energy consumption process, etc., and achieves good photoelectric conversion efficiency, small electrochemical impedance, high electricity The effect of chemical catalytic performance

Active Publication Date: 2014-11-19
HENAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the Pt material is a noble metal, the preparation cost of DSSC is greatly increased, and the method of preparing Pt electrodes by sputtering and thermal decomposition is a high energy-consuming process, which hinders the industrialization of DSSC.

Method used

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  • High catalytic activity sulfide hybridization counter electrode for flexible dye-sensitized solar cell and preparation method thereof
  • High catalytic activity sulfide hybridization counter electrode for flexible dye-sensitized solar cell and preparation method thereof
  • High catalytic activity sulfide hybridization counter electrode for flexible dye-sensitized solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Flexible TiO 2 / ITO / PEN photoanode preparation

[0023] Take a certain amount of P25 and place it in a muffle furnace for calcination at 450°C for 30 minutes to obtain pretreated P25. Put the pretreated P25, absolute ethanol and deionized water in a molar ratio of 1:5:1 in an autoclave (fill temperature is less than 80%), put the autoclave on a temperature-controllable magnetic stirrer, hydrothermally treat it at a temperature of 200 ° C for 24 hours, and naturally cool to room temperature to obtain TiO 2 slurry.

[0024] After cutting the conductive flexible substrate ITO / PEN, soak it in ethanol solution (95v%), take it out after 24 hours, and wash it repeatedly in 95v% ethanol solution several times to clean the impurities on the surface of the substrate, and finally store it in anhydrous Reserve in ethanol and blow dry before use.

[0025] Cover the four sides of the cleaned ITO / PEN flexible conductive substrate with scotch tape, and control the thickness of...

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Abstract

The invention relates to a high catalytic activity sulfide hybridization counter electrode (CE) for a flexible dye-sensitized solar cell (DSSC) and a preparation method thereof. According to the invention, the NiS / Pt / Ti hybridization counter electrode prepared through the chemical polymerization system two-step method has higher electrochemical catalysis performance and lower electrochemical impedance spectroscopy (EIS) compared with a Pt electrode prepared through sputtering and thermal decomposition; better photovoltaic conversion efficiency can be acquired for the application of the electrode in flexible DSSCs compared with the solar cell assembled based on a Pt electrode.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a highly catalytically active sulfide hybrid counter electrode for flexible dye-sensitized solar cells and a preparation method thereof. Background technique [0002] DSSCs have attracted extensive attention due to their low cost, low energy consumption, facile preparation, and high conversion efficiency. In the traditional DSSC structure system, the DSSC counter electrode material generally adopts the Pt electrode prepared by sputtering and thermal decomposition, because the Pt material has the advantages of high electrocatalytic activity, high conductivity and high stability. However, since the Pt material is a noble metal, the preparation cost of DSSC is greatly increased, and the method of preparing Pt electrodes by sputtering and thermal decomposition is a high energy-consuming process, which hinders the industrialization progress of DSSC. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042H01G9/20
CPCY02E10/542
Inventor 岳根田姜奇伟李福民马兴平谭付瑞陈冲
Owner HENAN UNIVERSITY
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