Preparation method of flexible carbon counter electrode of dye-sensitized solar cell, flexible carbon counter electrode and battery

Abstract

The invention discloses a preparation method for a flexible carbon counter electrode of a dye-sensitized solar cell, the flexible carbon counter electrode and the cell. The preparation method for the flexible carbon counter electrode of the dye-sensitized solar cell comprises the following steps of using a cold spraying method to spray raw materials comprising carbon materials to a flexible conductive substrate, forming a conductive film layer comprising the carbon materials on the flexible conductive substrate, and obtaining the flexible carbon counter electrode. Materials on the surface of the conductive film layer of the flexible carbon counter electrode obtained through the preparation method for the flexible carbon counter electrode of the dye-sensitized solar cell are even in distribution, smooth and flat, and the film breakage phenomenon does not exist. In the process of preparation, due to the fact that the cold spraying method is used, the flexible carbon counter electrode with the conductive film layer comprising the carbon materials on the flexible conductive substrate can be prepared without the need of heating, deformation and ageing of the flexible conductive substrate can be avoided, thus, effective connection among particles in the conductive film layer on the flexible conductive substrate is achieved, binding force between the conductive film layer and the flexible conductive substrate is improved, and the photoelectric conversion efficiency of the dye-sensitized solar cell comprising the flexible carbon counter electrode is further improved.

Description

technical field

[0001] The invention belongs to the technical field of dye-sensitized solar cells, and in particular relates to a method for preparing a flexible carbon counter electrode of a dye-sensitized solar cell, a flexible carbon counter electrode and a battery. Background technique

[0002] In 1991, a research team led by Professor Greatzel of the Swiss Institute of Advanced Technology in Lausanne made nanoporous TiO 2 Applied to dye-sensitized solar cells (DSSCs), this research has made a breakthrough. Since Professor Gratzel in the laboratory small area (<0.2cm 2 ) cells have achieved a photoelectric conversion efficiency of 7.1%, dye-sensitized solar cells have attracted more and more scientists' attention. In 2004, the efficiency of small-area cells increased to 11.04%. At present, Sharp Corporation of Japan announced that the efficiency of small-area cells has reached 11.1%. . Due to the potential application prospects of dye-sensitized solar cells, many c...

Images