Method for manufacturing working electrode of dye-sensitized solar cell
A solar cell and a manufacturing method technology, applied in the field of dye-sensitized solar cells, can solve the problems of inability to determine the amount and proportion of dyes, inability to fill up effectively, insufficient photoelectric conversion efficiency, etc., so as to increase the range of absorbing light and improve photoelectricity Conversion efficiency, effect of increasing dye adsorption capacity
Active Publication Date: 2012-01-11
IND TECH RES INST
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Problems solved by technology
[0004] Although the above-mentioned dye-sensitized solar cells are ready for commercialization, there are still many problems to be overcome, including: limited dye adsorption (resulting in insufficient photoelectric conversion efficiency), difficult packaging of liquid electrolyte, easy leakage, and poor durability. ..etc, so there's still a lot of room for improvement
[0005] For general dye-sensitized solar cells, the method of adsorbing dyes is mostly immersion (immerse) at ~10 -4 In the solution of M, or using two or more dyes to form a solution in a cocktail form, and then adsorbed on titanium dioxide together, this adsorption method cannot effectively fill all the titanium dioxide.
Especially in the dye adsorption technology of the cocktail method, because different dyes are competitive in adsorption, it is often impossible to determine the best adsorption conditions such as the amount and ratio of dyes
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[0042] The invention will be more fully understood hereinafter with reference to the accompanying drawings, which show various embodiments of the invention. However, the invention may also be practiced in many different forms and should not be construed as limited to the embodiments set forth below. In fact, these embodiments are only provided to make the disclosure of the present invention more detailed and complete, and to fully convey the scope of the present invention to those skilled in the art. In the drawings, the size and relative size of each layer may be exaggerated for the sake of clarity.
[0043] Figure 2A to Figure 2C It is a schematic cross-sectional view of the fabrication process of a working electrode of a dye-sensitized solar cell (Dye-Sensitized Solar Cell, DSSC) according to an embodiment of the present invention.
[0044] Please refer to Figure 2A , the manufacturing method of this embodiment is to provide a transparent conductive substrate 200 first...
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The invention discloses a method for manufacturing a working electrode of a dye-sensitized solar cell, which comprises the following steps: forming a metal oxide layer on a transparent conductive substrate, and carrying out a first dye adsorption stage of the metal oxide layer by using a metal complex dye; and then, carrying out a second dye adsorption stage of the metal oxide layer by using an organic dye to fill gaps in the metal oxide layer. Because the method adopts the technology of subsection multi-adsorption dye, the method can increase the dye adsorption amount of the working electrode of the dye-sensitized solar cell so as to improve the photoelectric conversion efficiency.
Description
【Technical field】 [0001] The present invention relates to a dye-sensitized solar cell (Dye-Sensitized Solar Cell, DSSC) technology, and in particular to a method for manufacturing a working electrode layer of a dye-sensitized solar cell. 【Background technique】 [0002] Solar cells are a very promising clean energy source that can generate electricity directly from sunlight. However, it is necessary to effectively reduce the production cost of solar cells in order to make them widely accepted as the main power source. [0003] In recent years, by A so-called dye-sensitized solar cell (DSSC) is proposed, which can use solar energy more efficiently, and has become one of the most promising third-generation solar cells after silicon solar cells. In general, the structure of dye-sensitized solar cells is as follows figure 1 As shown, titanium dioxide (TiO 2 ) a working electrode 102, a Pt counter electrode 104, and an electrolyte solution 106 for transporting holes, wherein ...
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IPC IPC(8): H01G9/20H01G9/042H01L51/48
CPCY02E10/542Y02E10/549
Inventor 童永梁蓝崇文蔡松雨欧铠麟吴春桂陈家原
Owner IND TECH RES INST