Process for preparing dye-sensitized solar cell by complete spray coating process

A solar cell and dye sensitization technology, which is applied in the field of dye-sensitized solar cell preparation by the full spraying process, can solve the problems of not being suitable for large-scale manufacturing of solar cells, poor reproducibility, and difficult uniformity of the photoanode film, so as to avoid large-scale The use of expensive instruments, the simplification of the preparation process, and the effect of reducing costs

Inactive Publication Date: 2009-11-25
DALIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

The scraping film method is not suitable for large-area manufacturing of solar cells because the prepared photoanode film is not easy to be uniform and has poor reproducibility.

Method used

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  • Process for preparing dye-sensitized solar cell by complete spray coating process
  • Process for preparing dye-sensitized solar cell by complete spray coating process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Prepare the photoanode: use the cleaned conductive glass as the photoanode electrode substrate material, place the hollow template on the surface of the photoanode conductive substrate, and spray TiO 2 The paste is sprayed on the conductive glass. The proportion of slurry is as follows: TiO 2 The ratio of (P25): PEG600: ethanol is 1g: 1.5g: 10g. The conductive glass that has been sprayed with the slurry is calcined at 500°C to obtain a porous titanium dioxide semiconductor film. Afterwards, the photoanode was prepared by adsorbing ruthenium dye (N719) on the semiconductor film by spraying method.

[0025] Production of the counter electrode: Prepare a 5% isopropanol solution of chloroplatinic acid, spray on the conductive glass

[0026] A layer of chloroplatinic acid was sprayed on the surface of the glass, and the counter electrode was prepared by calcination at 400 °C.

[0027] Spray the electrolyte solution. Electrolyte was sprayed on the photoanode prepared abo...

Embodiment 2

[0031] The preparation of the photoanode and the counter electrode is the same as above, but the dye is soaked in the titanium dioxide film in the chamber

[0032] Soak at room temperature for 12 hours. Then rinse with absolute ethanol and dry. The solution used is an ethanol solution of N719 (the concentration of N719 is 5×10 -4 mol / L). The assembled dye-sensitized solar cell has an open circuit voltage of 836mV; a short-circuit photocurrent density of 14.5mA / cm 2 ; Fill factor is 68.3%; Photoelectric conversion efficiency is 8.3%.

Embodiment 3

[0034] The photoanode is made by the traditional screen printing method, the preparation of the counter electrode is the same as above, and the dye is made by soaking the titanium dioxide film at room temperature for 12 hours. Then rinse with absolute ethanol and dry. The solution used is an ethanol solution of N719 (the concentration of N719 is 5×10 -4 mol / L). The assembled dye-sensitized solar cell has an open circuit voltage of 781mV; a short-circuit photocurrent density of 9.41mA / cm 2 ; Fill factor is 71.1%; Photoelectric conversion efficiency is 5.2%.

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Abstract

The invention discloses process for preparing dye-sensitized solar cell by a complete spray coating process, belonging to a field of green renewable energy resource technology, which is characterized in that: the battery is prepared by coating semiconductor slurry, electrolyte material and counter electrode material on an electrically-conductive backing plate through a spray coating method for obtaining a photo anode and a counter electrode. The dye-sensitized solar cell of the invention is prepared by the complete spray coating method, thereby simplifying the preparation technique and avoiding use of large-sized and high-priced instruments. The process is easy to implement in industrial production, reduces cost of the solar cell, produces solar cells with high efficiency, and is suitable for making various dye-sensitized solar cells.

Description

technical field [0001] The invention belongs to the technical field of green renewable energy, and relates to a method for preparing a dye-sensitized solar cell by a full spraying process. Background technique [0002] With the global energy shortage, global warming and environmental pollution becoming more and more serious, the effective use and development of solar energy has become an urgent research topic. Although the practical application of silicon solar cells is relatively mature, it cannot be widely popularized because of the complicated preparation process and high price. Recently a new type of dye-sensitized solar cell was published (Nature, Vol. 353, p. 737, 1991). Since its publication, the solar cell has attracted worldwide attention due to its high theoretical photoelectric conversion efficiency, simple preparation process, and low cost, and is considered to be the next-generation solar cell that can replace silicon solar cells. However, the photoelectric co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20H01M14/00H01L51/48H01L51/42
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 马廷丽辛钢杨丽武明星吴丽琼
Owner DALIAN UNIV OF TECH
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