Dye-sensitized externally loaded TiO2/(PPA-Pt) surf. film electrode and preparation process thereof

A thin-film electrode and dye sensitization technology, which is applied in photosensitive equipment, capacitor electrodes, sustainable manufacturing/processing, etc., can solve the problems of high cost of monocrystalline silicon solar cells, difficulties in large-scale production and application, and low conversion efficiency of polycrystalline silicon solar cells. problem, to achieve the effect of solving long-term effects and light utilization, easy industrial production, and strong adhesion

Inactive Publication Date: 2011-04-06
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the most widely used solar cells in the world are silicon-based solar cells (based on the principle of semiconductor P-N junctions), but due to the high cost of monocrystalline silicon solar cells and the low conversion efficiency of polycrystalline silicon solar cells, large-scale industrial production application is still difficult

Method used

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  • Dye-sensitized externally loaded TiO2/(PPA-Pt) surf. film electrode and preparation process thereof
  • Dye-sensitized externally loaded TiO2/(PPA-Pt) surf. film electrode and preparation process thereof
  • Dye-sensitized externally loaded TiO2/(PPA-Pt) surf. film electrode and preparation process thereof

Examples

Experimental program
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Embodiment 1

[0044] Embodiment 1: at first 0.5g platinum-plated porous alumina (PPA-Pt) is put into the shelf in the supercritical still, and isobutanol 20ml is arranged in the autoclave, is warming up to 100 ℃ according to heating rate 2 ℃ / min, and pressure is After 9MPa, keep it for 2h; then cool the supercritical tank to room temperature to obtain the low molecular weight-PPA-Pt plugged carrier. In addition, using the sol-gel method, mix 60g of butyl titanate with a purity of 99.0%, 3g of diethanolamine and 10g of absolute ethanol, add them into a three-necked flask, and use a GS122 electronic constant speed stirrer to stir evenly. Mix 20 g of absolute ethanol with 4 g of distilled water, and then slowly drop them into the three-necked flask through a separatory funnel. Butyl titanate forms TiO through hydrolysis and condensation reactions 2 Sol. Second, put the obtained low-molecular-PPA-Pt plugging support into TiO 2 In the body of the sol, it is coated on the surface of the pluggi...

Embodiment 2

[0045] Example 2: Using the sol-gel method, after mixing 60g of butyl titanate with a purity of 99.0%, 3g of diethanolamine, 10g of absolute ethanol and 2g of ferric nitrate, they were added to a three-necked flask, and a GS122 electronic constant velocity was used to Blend with a mixer. Mix 20 g of absolute ethanol with 4 g of distilled water, and then slowly drop them into the three-necked flask through a separatory funnel. Butyl titanate forms TiO through hydrolysis and condensation reactions 2 Sol, and secondly, put the obtained low-molecular-PPA-Pt plugging support into TiO 2 In the body of the sol, it is coated on the surface of the plugging carrier during the ultrasonic vibration process, the coating frequency is 1 time, and the ultrasonic time is 10 minutes. Finally TiO 2 Precursor / (low molecular weight-PPA-Pt) surf. Carry out heat treatment at a temperature of 100° C. for 3 hours, and a heating rate of 0.5° C. / min; then perform roasting under nitrogen protection a...

Embodiment 3

[0046] Example 3: Using the sol-gel method, 60 g of butyl titanate with a purity of 99.0%, 3 g of diethanolamine and 10 g of absolute ethanol were mixed, then added to a three-necked flask, and stirred evenly with a GS122 electronic constant speed stirrer. Mix 20 g of absolute ethanol with 10 g of distilled water, and then slowly drop them into a three-necked flask through a separatory funnel. Butyl titanate forms TiO through hydrolysis and condensation reactions 2 Sol, and secondly, put the obtained low-molecular-PPA-Pt plugging support into TiO 2 In the body of the sol, it is coated on the surface of the plugging carrier during the ultrasonic vibration process, the coating frequency is 1 time, and the ultrasonic time is 10 minutes. Finally TiO 2 X Precursor / (Low Molecular-PPA-Pt) surf. Carry out heat treatment at a temperature of 150° C. for 2 hours and a heating rate of 1° C. / min; then roast under nitrogen protection at a temperature of 300° C. for 3 hours. Its crystal ...

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Abstract

The invention discloses a dye-sensitized externally loaded TiO2 / (PPA-Pt) surf. film electrode and a preparation process thereof. Low molecular weight organic substance solution is permeated into pores by using supercritical fluid precipitation technology and using platinum-plated porous aluminum oxide (PPA-Pt) with high specific surface area as a template, and then condensation and precipitation are performed to realize plugging of the pores of a porous material. The loading of a nano TiO2 film only on the surface of the porous PPA-Pt is realized by using the porous PPA-Pt and the porous material as double templates and adopting a sol-gel method and thermal treatment, the original pore microstructure property of a carrier is recovered, and an externally loaded TiO2 / (PPA-Pt) surf. film electrode photovoltaic cell is synthesized. The film electrode has good stability and long-acting property; and the preparation process is simple and easy for industrialized production, prepares the externally loaded TiO2 / (PPA-Pt) surf. film electrode with novel structure and good physical and chemical properties, and makes positive contribution to developing research theories, technology and methods of porous materials and externally loaded nano materials.

Description

technical field [0001] The invention relates to a highly ordered porous nanocrystalline film sensitized photovoltaic electrode and a preparation process thereof, belonging to the field of functional materials. Background technique [0002] Energy is an important material basis of the national economy and a basic condition for human survival. The main energy sources in the world today are fossil fuels (coal, oil, natural gas), and the world's energy consumption is increasing at an annual rate of 5%. It is estimated that fossil fuels can only be used by humans for one or two hundred years. Most of the energy on the earth comes from the light radiation of the sun. The absorption of solar energy by plant photosynthesis accounts for only one thousandth of the energy reaching the ground. If solar energy can be converted with an efficiency of 10% on 1% of the earth's land area, it is enough to meet the current energy demand of twice. At present, the most widely used solar cells i...

Claims

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Application Information

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IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/48
CPCY02E10/542Y02E10/549Y02P70/50
Inventor 李佑稷
Owner JISHOU UNIVERSITY
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