Electrolyte of dye-sensitized solar cells and preparation method and application thereof

A technology of dye sensitization and electrolyte, which is applied in the field of solar cell components and its preparation, can solve the problems of cumbersome steps, complicated assembly and filling procedures, and high cost, and achieve the effects of strong bonding ability, simplified battery assembly procedures, and easy packaging

Inactive Publication Date: 2010-01-27
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the electrolyte preparation and assembly and perfusion procedures of quasi-solid-state dye-sensitized solar cells containing liquid electrolytes and carbona

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] AIBN0.01g, mix well, drop a few drops on the dye titanium dioxide film, press on the Pt electrode, react at 60°C for 8h, and polymerize in situ to form a film. It was then placed in 0.5mg iodine vapor and kept at 60°C for 3h. That is, a dye-sensitized solar cell was prepared. At room temperature, use a xenon lamp to simulate sunlight with a light intensity of 100mW / cm 2 Under the conditions, the measured battery (effective area 0.16cm 2 ) The photoelectric conversion efficiency is 3.0%.

Embodiment 2

[0028] AIBN0.02g, mix well, drop a few drops on the dye titanium dioxide film, press the Pt electrode, react at 80°C for 8h, and polymerize in situ to form a film. It was then placed in 1mg iodine vapor and kept at 60°C for 3h. That is, a dye-sensitized solar cell was prepared. At room temperature, use a xenon lamp to simulate sunlight with a light intensity of 100mW / cm 2 Under the conditions, the measured battery (effective area 0.16cm 2 ) The photoelectric conversion efficiency is 3.2%.

Embodiment 3

[0030] AIBN0.03g, mix well, drop a few drops on the dye titanium dioxide film, press on the Pt electrode, react at 65°C for 7h, and polymerize in situ to form a film. It was then placed in 1mg iodine vapor and kept at 70°C for 2h. That is, a dye-sensitized solar cell was prepared. At room temperature, use a xenon lamp to simulate sunlight with a light intensity of 100mW / cm 2 Under the conditions, the measured battery (effective area 0.16cm 2 ) The photoelectric conversion efficiency is 2.8%.

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Abstract

The invention relates to an electrolyte of dye-sensitized solar cells, disclosing a quasi solid electrolyte and a preparation method thereof; the method in the invention comprises the following steps: (1) blending polymeric ionic liquid, nonpolymeric ionic liquid, ionic liquid cross linking agent and initiating agent according to the mass ratio of 15-60:20-80:2-10:1-5, and obtaining the polymer gel through random copolymerization at the temperature of 20-80 DEG C; and (2) immersing the polymer gel into iodic solution or iodic vapor for adsorption of iodic simple substance to obtain the electrolyte. In the invention, the well-prepared ionic liquid monomer/ionic liquid mixture is dipped between a light anode and a Pt electrode and quasi solid polymer gel is formed through in situ polymerization; the polymer gel is dipped into iodic solution or iodic vapor for the adsorption of iodic simple substance to prepare the quasi solid full-ionic liquid electrolyte which is used in solar cells, and the dye-sensitized solar cells are prepared simultaneously. The electrolyte prepared by the method has strong electrolytic adhesive ability and easy encapsulation, thus simplifying battery assembly program.

Description

technical field [0001] The invention relates to a solar cell component and a preparation method thereof, in particular to an electrolyte of a dye-sensitized solar cell and a preparation method thereof. Background technique [0002] Electrolyte is the core component of solar cells, especially dye-sensitized solar cells. It mainly plays the role of transporting redox pairs, and its performance directly affects the efficiency of solar cells. Electrolytes for dye-sensitized solar cells exist in liquid, gel, quasi-solid, and solid forms (see: ①Dalton.Trans.2008, 2655-2666; ②Adv.Funct.Mater.2009, 19, 1-16; ③Adv. Funct. Mater. 2007, 17, 2645-2652). Among them, liquid electrolytes mostly use organic solvents as electrolytes, such as acetonitrile and methoxypropionitrile. This type of liquid electrolyte has the disadvantages of being volatile, difficult to package, poor stability, and high toxicity (see: ①Adv. N719 is a dye, 0.6M 1,2-dimethyl-3-propylimidazolium iodide, 0.1M LiI, ...

Claims

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Application Information

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IPC IPC(8): H01G9/022H01G9/20H01M14/00H01L51/48H01L51/44
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 严锋赵杰孙宝全
Owner SUZHOU UNIV
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