Electrode material used for organic inorganic composite cell and manufacturing process

An inorganic composite and electrode material technology, applied in battery electrodes, circuits, photovoltaic power generation, etc., can solve problems such as expensive, unstable reactants, and complex preparation processes, and achieve the effect of improving charge separation and transmission capabilities and improving conversion efficiency

Active Publication Date: 2009-07-08
中科(宜兴)新材料研究有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This patented technology uses a specific type of solvent called TiO2 that can be easily mixed into another substance like water for easy production purposes at lower cost compared to traditional methods such as chemical vapor deposition (CVD). By mixing this ingredient together during manufacturing processes, it becomes possible to create an even better catalyst than previous options due to its controlled properties. Overall, these technical results make making high-performing photovoltaic devices more efficient by reducing costs while maintaining their desired characteristics.

Problems solved by technology

This patented technical problem addressed in this patents relating to improving the properties of organic -Inorganic Composite Solar Cells without requiring more complicated manufacturing steps than existing techniques like conventional lithography and solvent casting methodologies. Current methods involve modifying Ti02 thin layers during fabrication which requires expensive chemical agents or multiple procedures. Additionally, there may exist issues where different components cannot match well when forming composites containing both quantum and hole type structures.

Method used

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  • Electrode material used for organic inorganic composite cell and manufacturing process
  • Electrode material used for organic inorganic composite cell and manufacturing process

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Add tetrabutyl titanate dropwise to 50ml of a mixed solvent of ammonia (25-28%) and hydrogen peroxide (30%) (NH 3 ·H 2 O:H 2 o 2 =1:5), fully stirred to obtain a transparent solution, then raised the temperature to 80°C to remove excess hydrogen peroxide and organic matter, and obtained a suspension after stirring for 2 hours. Move the suspension to a reaction kettle, keep it warm at 180°C for 20 hours, cool naturally to obtain the target precipitate, wash the precipitate with deionized water for 3 to 5 times, and dry to obtain the undoped titanium dioxide powder material. After characterization, the obtained powder is a pure-phase anatase structure, such as figure 1 As shown, the powder is nanoparticles with uniform particle size distribution, the average particle size is slightly less than 10nm, and its microscopic TEM photo is shown in figure 2 (a) shown.

[0034] Prepare the obtained powder with ethyl cellulose, polyethylene glycol and turpentine permeabilizat...

Embodiment 2

[0036] Add 1mmol metal elemental niobium to 50ml of ammonia (25-28%) and hydrogen peroxide (30%) mixed solvent (NH 3 ·H 2 O:H 2 o2 =1:5), after stirring in a cold water bath for a period of time, a uniform niobium precursor solution with a concentration of 0.02M was obtained. Add 39mmol tetrabutyl titanate dropwise to the niobium precursor solution to control the doping concentration of niobium to 2.5mol%, stir the transparent solution thoroughly, and then raise the temperature of the mixed solution to 80°C to remove excess hydrogen peroxide and organic matter , A suspension was obtained after stirring for 2 h. Move the suspension to a reaction kettle, keep it warm at 180°C for 20 hours, cool naturally to obtain the target precipitate, wash the precipitate with deionized water for 3 to 5 times, and dry to obtain titanium dioxide with a niobium doping amount of 2.5 mol%. Powder material. After characterization, the obtained powder is a pure-phase anatase structure, and the ...

Embodiment 3

[0039] Add 2mmol metal elemental niobium into 50ml of ammonia (25-28%) and hydrogen peroxide (30%) mixed solvent (NH 3 ·H 2 O:H 2 o 2 =1:5), after stirring in a cold water bath for a period of time, a uniform niobium precursor solution with a concentration of 0.04M was obtained. Add 38mmol tetrabutyl titanate dropwise to the niobium precursor solution to control the doping concentration of niobium to 5.0mol%, stir well to obtain a transparent solution, and then raise the temperature of the mixed solution to 80°C to remove excess hydrogen peroxide and Organic matter, after stirring for 2h, a suspension was obtained. Move the suspension to a reaction kettle, keep it warm at 180°C for 20 hours, cool naturally to obtain the target precipitate, wash the precipitate with deionized water for 3 to 5 times, and dry to obtain titanium dioxide with a niobium doping amount of 5.0 mol%. Powder material. After characterization, the obtained powder is a pure-phase anatase structure, suc...

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Abstract

The invention relates to an electrode material used for organic/inorganic composite battery and provides a simple and low-cost preparation method thereof. The preparation method is characterized in that a stable precursor solution is adopted to synthesize the TiO2-based electrode material with controllable composition and excellent performance by liquid-phase method or solid-phase reaction. The TiO2 can be doped with one of the transition metals selected from Zr, Hf, V, Nb, Ta, Cr, Mo, W or Sc, with a doping concentration of 0 to 30 mol%, to adjust the band structure of the TiO2 and improve the charge separation transportation capability of the TiO2, thereby improving the conversion efficiency of solar batteries. The maximal photoelectrical conversion efficiency is improved by 27.2% than that of the non-doped material.

Description

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Claims

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Application Information

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Owner 中科(宜兴)新材料研究有限公司
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