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Preparation method for titanium dioxide photoanode of titanium-based flexible dye-sensitized solar cell

A solar cell, titanium dioxide technology, applied in photosensitive equipment, circuits, capacitors, etc., can solve the problems of incapable of large-scale continuous industrial production, low yield, etc., and achieve the effect of being beneficial to electron transmission, low operating cost, and improving quality

Inactive Publication Date: 2016-06-01
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with the present invention, the method of silk screen printing cannot be produced continuously in a large area, so the yield is lower

Method used

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  • Preparation method for titanium dioxide photoanode of titanium-based flexible dye-sensitized solar cell
  • Preparation method for titanium dioxide photoanode of titanium-based flexible dye-sensitized solar cell
  • Preparation method for titanium dioxide photoanode of titanium-based flexible dye-sensitized solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 4.0 grams of titanium dioxide at room temperature, add 100 mL of ethanol, 20 grams of terpineol and 10 wt% ethyl cellulose (3 grams: 30 grams of ethanol) with a mass fraction of 10 wt%, and ball mill for 24 hours at a ball milling speed of 30 rpm. A uniformly dispersed solution was formed, and finally a titanium dioxide slurry with a mass fraction of about 15 wt% was obtained by rotary evaporation. The above-mentioned titanium dioxide slurry was coated on the surface of the cleaned titanium foil at room temperature and allowed to stand for 10 minutes. Place the above-mentioned titanium foil substrate in a roll-to-roll equipment coated with terpineol (release agent) for rolling, the distance between the rollers is 0.3mm, and the linear speed of the rollers is 15cm / s; and heat treatment on a hot table at 100°C , and the duration is 30 minutes. After cooling to room temperature, the substrates were washed three times with deionized water and dried. The dried substr...

Embodiment 2

[0036] Weigh 5.0 grams of titanium dioxide at room temperature, add 100 mL of ethanol, 20 grams of terpineol and 10 wt% ethyl cellulose (3 grams: 30 grams of ethanol) with a mass fraction of 10 wt%, and ball mill for 24 hours at a ball milling speed of 30 rpm. A uniformly dispersed solution was formed, and finally a titanium dioxide slurry with a mass fraction of about 18 wt% was obtained by rotary evaporation. The above-mentioned titanium dioxide slurry was coated on the surface of the cleaned titanium foil at room temperature and allowed to stand for 10 minutes. Place the above-mentioned titanium foil substrate in a roll-to-roll equipment coated with terpineol (release agent) for rolling, the distance between the rollers is 0.3mm, and the linear speed of the rollers is 15cm / s; and heat treatment on a hot table at 100°C , and the duration is 30 minutes. After cooling to room temperature, the substrates were washed five times with deionized water and dried. The dried substra...

Embodiment 3

[0038]Weigh 4.0 grams of titanium dioxide at room temperature, add 100 mL of ethanol, 20 grams of terpineol and ethyl cellulose (3 grams: 30 grams of ethanol) with a mass fraction of 10 wt%, and ball mill for 48 hours at a ball milling speed of 20 rpm. A uniformly dispersed solution was formed, and finally a titanium dioxide slurry with a mass fraction of about 15 wt% was obtained by rotary evaporation. The above-mentioned titanium dioxide slurry was coated on the surface of the cleaned titanium foil at room temperature and allowed to stand for 10 minutes. Place the above-mentioned titanium foil substrate in a roll-to-roll equipment coated with terpineol (release agent) for rolling, the distance between the rollers is 0.5mm, and the linear speed of the roller is 10cm / s; and heat treatment on a hot table at 100°C , and the duration is 30 minutes. After cooling to room temperature, the substrates were washed three times with deionized water and dried. The dried substrate was c...

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Abstract

The invention relates to a preparation method for a titanium dioxide photoanode of a titanium-based flexible dye-sensitized solar cell. The preparation method comprises the following steps of dispersing titanium dioxide in a binding agent, and carrying out ball milling to obtain a titanium dioxide paste; coating the surface of an aluminum foil with the titanium dioxide paste in a room temperature condition, and allowing the aluminum foil to stand to obtain a titanium foil photoanode substrate; rolling the titanium foil photoanode substrate by a roller-to-roller method in a die releasing agent condition; and carrying out thermal treatment, washing, drying, calcination and cooling to obtain the titanium dioxide photoanode. The preparation method can be used for a flexible titanium foil substrate, is simple, is low in production device requirement and is easy for industrial production at a large scale; moreover, the flexible thin film which is compacted by a roller-to-roller process and of which the surface is smoothened has the characteristics of light, high compactness, high porosity and the like, can be bent substantially, and is difficult to crack, and thus, the battery quality can be improved.

Description

technical field [0001] The invention belongs to the field of preparation of photoanodes of solar cells, in particular to a preparation method of titanium dioxide photoanodes of titanium-based flexible dye-sensitized solar cells. Background technique [0002] Dye-sensitized solar cells are low in production cost, simple in process, non-toxic, and less polluting, so they are considered by the industry as a substitute for silicon solar cells. The core part of this type of battery is the semiconductor electrode, which is mostly composed of titanium dioxide thin film. In 1991, Swiss scientist M. Published the work on dye-sensitized solar cells for the first time. It used titanium oxide colloid to prepare porous titanium dioxide film on the surface of FTO glass substrate, and then calcined at 450 ° C. It was applied to dye-sensitized solar cells, and its photoelectric conversion efficiency was 7.12%. . At present, the preparation process of this type of electrode is mostly to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20H01G9/042
CPCY02E10/542H01G9/2031
Inventor 张青红戚佳斌侯成义王宏志李耀刚
Owner DONGHUA UNIV
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