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Silk light anode integrated efficient electronic collection dye sensitized solar battery

A dye-sensitized, solar cell technology, applied in photovoltaic power generation, photosensitive equipment, electrolytic capacitors, etc., can solve the problem of increasing the light absorption of photoanode, and achieve the goal of increasing light absorption, collecting electrons, and increasing the effective light-receiving area. Effect

Inactive Publication Date: 2008-09-17
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 Degussa company in Germany into a mortar and grind, and add 4 ml of isopropanol solution containing 10% acetylacetone dropwise, and then add 10 ml of water dropwise to continue grinding, and mix 0.2 ml of of Triton X-100 was added to the suspension to prepare TiO with a concentration of 54.54% 2 sol.

[0024] A titanium wire with a diameter of 150 μm and a length of 1.3 cm is coated with a titanium oxide film with a thickness of 15 μm at a pulling speed of 10 mm per second by the pulling method, and a titanium wire of about 0.3 cm is reserved as a conductive electrode. Heat treatment for 30 minutes.

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

[0026] Immerse the titanium metal sheet in 5 mmol / L H by pulling method 2 PtCl 6...

Embodiment 2

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

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

[0033] Put the coated tungsten wire into a 5×10 -5 mol / L N719 ruthenium organic dye in ethanol solution, placed at room temperature for 72 hours, taken out, washed wit...

Embodiment 3

[0039] Mix 125 mL of isopropyl titanate and 20 mL of isopropanol evenly, put it into a separatory funnel, add dropwise to 750 mL of deionized water containing 5.3 mL of 70% nitric acid within ten minutes and stir vigorously, the mixture is at 80 ° C. Continue stirring for 8 hours to form transparent nano-TiO 2 colloidal solution, and then put it into a high-temperature and high-pressure reaction kettle for 12 hours at a constant temperature of 200 °C, and the prepared nano-TiO 2 The sol was concentrated to a concentration of 45% TiO by rotary evaporation 2 sol.

[0040] A 10-μm-thick titanium oxide film was placed on a nickel wire with a diameter of 100 μm and a length of 2.3 cm by screen printing, and a nickel wire of about 0.3 cm was reserved 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 in ethanol solution, placed at room temperature for 72 hours, taken out, washed wi...

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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 solar photovoltaic utilization, in particular to a solar cell. Background technique [0002] Dye-sensitized solar cells have become a research hotspot due to 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. Among thin-film solar cells, it is still unable to compete with mature solar cells such as amorphous silicon and CIGS. Further improvement of efficiency is whether it can be key to industrialization. [0003] The traditional dye-sensitized solar cell adopts a sandwich structure with conductive glass as the substrate, see appendix figure 1 . A layer of porous nanocrystalline oxide film (usually TiO) for charge separation is coated on one side of transparent conductive glass 1 (TCO). 2 ), adsorbed on the monolayer dye 2 after the heat treatment to form a photoanode, the coun...

Claims

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Application Information

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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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