Preparation method of photo-anode, photo-anode and dye-sensitized solar cell

Abstract

The invention provides a preparation method of a photo-anode, the photo-anode and a dye-sensitized solar cell. The preparation method comprises the steps of adding de-ionized water and diluted hydrochloric acid in a first hydrothermal reaction kettle and dripping titanium isopropylate slowly to obtain a first mixed solution; placing FTO (Fluorine-doped Tin Oxide) conducting glass into the first mixed solution for hydrothermal reaction; cooling the first mixed solution to a room temperature and then taking out the FTO conducting glass; sintering the dried FTO conducting glass and cooling the sintered FTO conducting glass to the room temperature so as to obtain a first photo-anode; adding an ethylene glycol solution into a second hydrothermal reaction kettle, adding tetrabutyl titanate into the ethylene glycol solution, adding hydrofluoric acid and acetic acid after mixing, and mixing to obtain a second mixed solution; and adding the first photo-anode into the second mixed solution for hydrothermal reaction, cooling the second mixed solution to the room temperature and then washing the FTO conducting glass with the de-ionized water and drying the FTO conducting glass to obtain a second photo-anode. The technical problems of relatively poor electronic transmission characteristic, relatively poor light scattering ability and small specific surface area of an existing dye-sensitized solar cell are solved.

Description

technical field [0001] The present application relates to the field of solar cell manufacturing, in particular to a method for preparing a photoanode, a photoanode and a dye-sensitized solar cell. Background technique [0002] The energy problem is the most important issue restricting the development of the world economy at present. As an inexhaustible, pollution-free and clean natural green energy, solar energy has become one of the most promising energy sources. At present, the most widely researched and applied solar cells are mainly silicon-based solar cells, but the cost of raw materials for silicon-based cells is high, the production process is complicated, and the potential for efficiency improvement is limited. The theoretical limit of its photoelectric conversion efficiency is 30%, which limits its civilian use. , there is an urgent need to develop low-cost solar cells. [0003] 1991 Swiss Scholar et al. published an article in Nature, and proposed a new type of ...

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Problems solved by technology

[0006] In view of this, the present application provides a method for preparing a photoanode, a photoanode and a dye-sensitized solar cell, so as to solve the technical problems that the existing dye-sensitized solar cells have poor electron transport characteristics and light scattering ability and a low specific surface area

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