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Silk light anode integrated efficient electronic collection dye sensitized solar battery

A technology of dye sensitization and solar cells, applied in photovoltaic power generation, photosensitive equipment, circuits, etc., can solve the problems of increasing light absorption of photoanodes, achieve the effect of increasing light absorption, facilitating the collection of electrons, and increasing the effective light receiving area

Inactive Publication Date: 2010-08-25
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a dye-sensitized solar cell with high efficiency of collecting electrons integrated with a filamentary photoanode. Large resistance limits the improvement of battery efficiency and the problems of large-area preparation and series and parallel connection of components, further improving the efficiency of batteries

Method used

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  • Silk light anode integrated efficient electronic collection dye sensitized solar battery
  • Silk light anode integrated efficient electronic collection dye sensitized solar battery
  • Silk light anode integrated efficient electronic collection dye sensitized solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 12 grams of commercial nano-titanium dioxide P25 powder produced by Germany Degussa company into a mortar and grind, and add 4 ml of isopropanol solution containing 10% acetylacetone drop by drop, then add 10 ml of water drop by drop to continue grinding, and mix 0.2 ml Triton X-100 was added to the suspension to prepare a concentration of 54.54% TiO 2 Sol.

[0024] Use the pulling method to coat a titanium wire with a diameter of 150 μm and a length of 1.3 cm with a 15 μm thick titanium oxide film at a pulling speed of 10 mm per second, and reserve about 0.3 cm of titanium wire as a conductive electrode. Heat treatment for 30 minutes.

[0025] Put the coated titanium wire into the 3×10 -5 mol / L N719 ruthenium organic dye ethanol solution, heated to 80°C and soaked for 3 hours, took it out, cleaned it with ethanol, and stored it in a dry and light-proof environment.

[0026] Immerse the titanium metal sheet in the solution containing 5mmol / L H by pulling method ...

Embodiment 2

[0031] Mix 250mL of butyl titanate and 20mL of isopropanol evenly and put them into a separatory funnel, drop them into 1500mL of deionized water containing nitric acid with a pH value of 1 within 20 minutes and stir vigorously. Continue to stir for 10 hours at ℃ to form transparent nano-TiO 2 colloid solution, and then placed in a high-temperature and high-pressure reactor at 230 ° C for 12 hours at a constant temperature, and the prepared nano-TiO 2 The sol was concentrated by rotary evaporation to a concentration of 60% TiO 2 Sol.

[0032] A tungsten metal wire with a diameter of 75 μm and a length of 5.2 cm was plated with a 10 μm thick titanium oxide film by screen printing, and a tungsten wire of about 0.2 cm was reserved as a conductive electrode, and heat treated at 500 ° C for 1 hour.

[0033] Put the coated tungsten metal wire into the 5×10 -5 mol / L N719 ruthenium organic dye ethanol solution, placed at room temperature for 72 hours, cleaned with ethanol after tak...

Embodiment 3

[0039] Mix 125mL of isopropyl titanate and 20mL of isopropanol evenly, put it into a separatory funnel, add dropwise to 750mL of deionized water containing 5.3mL of 70% nitric acid within ten minutes and stir vigorously. Continue to stir for 8 hours to form transparent nano-TiO 2 colloid solution, and then put it into a high-temperature and high-pressure reactor at a temperature of 200 ° C for 12 hours to react at a constant temperature, and the prepared nano-TiO 2 The sol was concentrated by rotary evaporation to a concentration of 45% TiO 2 Sol.

[0040] Use the screen printing method to place a 10 μm thick titanium oxide film on a nickel wire with a diameter of 100 μm and a length of 2.3 cm, and reserve a nickel wire of about 0.3 cm as a conductive electrode, heat treatment at 500 ° C for 1 hour.

[0041] Put the coated nickel wire into the 5×10 -5 mol / L N719 ruthenium organic dye ethanol solution, placed at room temperature for 72 hours, cleaned with ethanol after takin...

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Abstract

The invention discloses a dye sensitized solar battery integrated by a threadlike light anode for efficiently collecting electrons, the solar battery is composed of three layers of structures, wherein the first layer is a super-white glass for packaging a cover board, the second layer is a plurality of coating metallic wires of the light anode which are interconnected in parallel, the coating metallic wires are the metallic wires which resist the corrosion of electrolyte or bandwidth gap nanometer crystal semiconductor oxide thin film that a conducting fiber is coated through coating procedure as charge separation effect; after heat treatment, the sensitized dye is adsorbed to prepare the second layer; the third layer is a coating metal sheet as pair electrodes; the gap between the super-white glass and the coating metal sheet is packaged to form a sealed space which is replete with the electrolyte having the redox. The solar battery of the invention can efficiently collect the electrons and adsorbs more dye to further improve the light absorption of the light anode, solving the problems of large resistance of the conduction glass substrate which limits the battery efficiency, of preparation in large area and of serial, parallel connections of the assemblies, and further enhancing the efficiency of battery.

Description

technical field [0001] The invention relates to the field of photovoltaic utilization of solar energy, in particular to a solar cell. Background technique [0002] Dye-sensitized solar cells have become a hotspot of scientific research because of their simple fabrication process and extremely low cost. One of the reasons why dye-sensitized solar cells cannot be industrialized in the short term is that the efficiency is still low. In thin-film solar cells, it is still unable to compete with mature solar cells such as amorphous silicon and CIGS. key to industrialization. [0003] Traditional dye-sensitized solar cells adopt a sandwich structure with conductive glass as the substrate, see Figure 1. On one side of transparent conductive glass 1 (TCO), a layer of porous nanocrystalline oxide film (usually TiO 2 ), after heat treatment, the single-layer dye 2 is adsorbed to form a photoanode, and the counter electrode is made of a transparent conductive glass 3 coated with cata...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20H01G9/04H01G9/048H01M14/00H01L51/42H01L51/46H01L31/04H01L31/0224
CPCY02E10/542Y02E10/549
Inventor 刘勇沈辉孙志高冯成坤王海张臻
Owner SUN YAT SEN UNIV
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