Full carbon counter electrode dye-sensitized solar cell and preparing method

A technology for solar cells and dye sensitization, applied in the field of counter electrodes and their preparation, can solve problems such as electrode composition and production that are not involved, and achieve the effects of lightening, simplifying the preparation process, and reducing transportation costs.
CN101388294AActive Publication Date: 2009-03-18深圳市华物光能技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深圳市华物光能技术有限公司
Publication Date
2009-03-18

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Abstract

The invention relates to an all carbon counter electrode for a dye-sensitized solar cell and a process for preparation, wherein the all carbon counter electrode is formed by a carbon substrate A and a carbon catalytic active layer B which is coated on the carbon substrate. The process for preparing the all carbon counter electrode comprises firstly dispersing carbon catalytic active material and making into carbon paste according to the process of preparing carbon paste disclosed by the patient closure number CN101188257A, then transferring to the clean carbon substrate A through the methods of screen painting, spread coating, rotary film coating, film dropping or Czochralski method, and finally preparing the all carbon counter electrode through drying or kilning. The all carbon electrode of the invention can reduce series resistance and interface resistance, thereby increasing the short-circuit current (Jsc), filling factor (FF) and photoelectric transformation efficiency of the dye-sensitized solar cell. The substrate material adopted by the all carbon counter electrode of the invention has smaller resistance, can reduce using or avoid using metal flow concentration leads, and simplifies preparation technology.
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Description

technical field

[0001] The invention relates to a counter electrode of a solar cell and a preparation method thereof, in particular to a counter electrode in which both the substrate and the catalytic active layer of a dye-sensitized solar cell are made of carbon materials and a preparation method thereof. Background technique

[0002] Since 1991, Swiss scientists Since the group reported the breakthrough progress of dye-sensitized solar cells (Dye-sensitized Solar Cells, referred to as DSCs) in Nature (Nature, Volume 353, Page 737, 1991 (Nature, Vol.353, 737, 1991)), Because of its low price of raw materials, simple preparation process, stable performance and high efficiency, it has attracted wide attention from scientists and industries all over the world, and has great application prospects.

[0003] This battery generally consists of three parts: a semiconductor thin film photoanode with dyes adsorbed on it, a redox couple (I 3 - / I - ) electrolyte and counter elect...

Claims

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