Method for preparing TiO2 slurry of organic carrier system

Abstract

The invention belongs to the technical field of solar cells, and relates to a method for preparing TiO2 slurry of an organic carrier system. The method comprises the following steps of: 1) preparation of an organic carrier, namely adding ethyl cellulose into terpineol, stirring the mixture for 2 hours in water bath at the temperature of 80 DEG C, and forming the organic carrier of which the mass ratio of the ethyl cellulose to the terpineol is between 1:10 and 1:5 and the viscosity is between 5.9 and 6.1 Kcp; 2) preparation of TiO2 mixed nano crystal, namely mixing TiO2 nano crystal with the particle diameter of between 10 and 25 nm and a TiO2 nano tube with the particle diameter of between 20 and 100 nm according to the proportion of 1:1-1:3; and 3) obtaining of the nano TiO2 slurry of the organic carrier system by fully mixing the TiO2 mixed nano crystal prepared by the method in the step 2) and the organic carrier according to the proportion of 18:82-24:76 and grinding the mixture for 1 hour. TiO2 membranes prepared by the slurry have large specific surface, so that the absorption of the photo anode on sunlight is strengthened and simultaneously the electronic transmission rate is improved and the performance of the cell is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to an organic carrier system of TiO 2 Preparation method of slurry. Background technique [0002] With the depletion of global mineral energy and the aggravation of environmental pollution, the utilization of solar energy resources has attracted the attention of the world, so the research of solar cells has become a research hotspot worldwide. Among all kinds of new solar cells, dye-sensitized solar cells have been paid more and more attention due to their advantages such as simple manufacturing process, convenient mass production, and low cost. [0003] In dye-sensitized solar cells, the performance of the porous photoanode is particularly important to the performance of the cell. In order to achieve as much dye adsorption as possible, while achieving a firm contact with the conductive substrate, and to realize the transport of electrons from the excited state of the dye to the...

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Problems solved by technology

[0005] In recent years, there have been extensive studies on the application of nanotubes in solar cells, most of which believe that TiO 2 Nanotubes have a larger specific surface area, and the tubular structure of nanotubes is more conducive to the effective transport of electrons, but it is difficult to directly prepare nanotubes on conductive substrates.

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