Preparation method of dye-sensitized solar cell counter electrode

Abstract

The invention provides a preparation method of a dye-sensitized solar cell counter electrode, and particularly relates to a preparation method of a Pt counter electrode. The preparation method comprises the following steps of dissolving H2PtCl6.6H2O in terpilenol in the mass fractions of 0.4%, 0.6%, 0.8% and 1.0% respectively, then printing the solution on the surface of ITO-PEN (Indium Tin Oxide-polyethylene naphthalate) by using a silk-screen printing method, then drying at the temperature of 80 DEG C for two hours, and enabling the effective contact area of H2PtCl6 / ITO-PEN to be 1 cm * 1 cm; enabling an H2PtCl6 / ITO-PEN electrode to enter 10 mmol.L<-1> of NaBH4 water solution, reducing Pt<4+> at the temperature of 40 DEG C, taking out the H2PtCl6 / ITO-PEN electrode two hours later and then rinsing by using deionized water; then, sintering the electrode at the temperature of 100 DEG C in a drying oven for four hours to obtain a Pt electrode. The Pt electrode prepared by using the preparation method has higher electrocatalytic activity, lower charge transfer resistance and good light transmission, and the energy conversion efficiency of a dye-sensitized solar cell assembled by the electrode is higher. The method is simple, is suitable for preparing Pt electrodes on flexible organic plates, and is applicable to mass manufacturing of dye-sensitized solar cells.

Description

technical field [0001] The invention provides a method for preparing a counter electrode of a dye-sensitized solar cell, in particular a method for preparing a Pt counter electrode. Background technique [0002] Research and development of solar cells to directly convert solar energy into electrical energy is one of the most effective ways to utilize solar energy. At present, silicon solar cells, multi-component compound thin-film solar cells, conductive polymer solar cells, and nanocrystalline solar cells are the most researched. Among them, dye-sensitized solar cells among nanocrystalline solar cells have received widespread attention due to their high theoretical conversion rate, simple process, low dependence on temperature and incident light, low energy consumption in the preparation process, and low cost. However, the development of dye-sensitized solar cells is limited due to the disadvantages of complex preparation process and high cost of the counter electrode. [...

AI Technical Summary

Problems solved by technology

However, due to the disadvantages of complex preparation process and high cost of the counter electrode, the development of dye-sensitized solar cells is limited.