Methods for preparing porous spherical titanium dioxide and light positive pole

A titanium dioxide, porous spherical technology, applied in the field of dye-sensitized solar cells, can solve the problems of easy particle agglomeration and low DSC efficiency, and achieve the effects of good repeatability, simple operation and improved efficiency
CN102167397AInactive Publication Date: 2011-08-31DONGGUAN ANWELL DIGITAL MASCH CO LTD +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
DONGGUAN ANWELL DIGITAL MASCH CO LTD
Publication Date
2011-08-31
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a method for preparing porous spherical titanium dioxide and a method for preparing a dye solar cell light positive pole from porous spherical titanium dioxide prepared by the method, and a dye-sensitized solar cell prepared from the dye solar cell light positive pole. The prepared porous spherical titanium dioxide can be used as a dye absorption carrier in the electrode ofa dye-sensitized semiconductor, is large titanium dioxide particles with porous structures, and has the characteristics of P25 and submicron titanium dioxide. In the method, the porous spherical titanium dioxide is prepared by taking cetylamine as a structural guiding agent, and ammonia water as a surface aperture regulator; and the raw materials are easily obtained, the method is easy to operate, the energy consumption is low and the repeatability is high. Compared with a battery prepared from the conventional P25 titanium dioxide, the prepared porous spherical titanium dioxide has a large specific surface area and high photochemical stability, improves the dye absorption efficiency and electron transport efficiency by over 50 percent, and is suitable for the research of high-efficiency dye batteries.
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Description

technical field

[0001] The invention relates to the technical field of dye-sensitized solar cells, in particular to a method for preparing porous spherical titanium dioxide and a photoanode of a dye solar cell. Background technique

[0002] Solar energy conversion is the most active field of new energy development and utilization. Solar cells currently on the market are mainly monocrystalline silicon and polycrystalline silicon. However, the manufacturing cost of these two solar cells is too high, which is not conducive to widespread application. The dye-sensitized solar cell (DSC), which appeared in the 1990s, is a solar cell developed based on the principle of plant chlorophyll photosynthesis. It has attracted widespread attention because of its potential high efficiency and low cost. A DSC is a type of solar cell using a wide bandgap semiconductor material. The wide bandgap semiconductor itself has high thermodynamic stability and photochemical stability, but the abili...

Claims

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