Post-decoration method for dye sensitization light anode of dye sensitization solar battery

A technology for solar cells and dye sensitization, applied in the field of designing dye-sensitized solar cell materials, can solve the problems of easily corroded electrodes, battery performance decline, dye desorption, etc., to achieve improved open circuit voltage and short circuit current, enhanced stability, Reduce the effect of reverse compounding

Active Publication Date: 2008-01-30
北京索尔泰克能源技术研究所 +1
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of stability, the volatility and permeability of the solvent in the electrolyte are unavoidable. At the same time, the presence of the electrolyte is also easy to corrode the electro

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Post-decoration method for dye sensitization light anode of dye sensitization solar battery
  • Post-decoration method for dye sensitization light anode of dye sensitization solar battery

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1: Use titanium dioxide colloid to scrape the film on transparent conductive glass ITO, sinter at 450℃ for 30min to obtain nanoporous structured wide-gap semiconductor titanium dioxide film, then soak in 5mm0l / L dye solution for 30min, take it out and rinse with absolute ethanol , This TiO 2 The porous membrane is 0.015mol / L Al[OCH(CH 3 ) 2 ] 3 / Isopropanol solution is soaked for 30s, rinsed with ethanol and then dried, placed in the air for 1 hour to obtain a dye-sensitized photoanode. Using quasi-solid electrolyte and platinum-plated conductive glass as the counter electrode, the battery is assembled. At 100mW / cm 2 Under the white light irradiation, the measured open circuit voltage of the battery is 0.70V, and the short-circuit current is 7.72mA / cm 2 , The fill factor is 61.3%, and the total photoelectric conversion efficiency is 3.32%.

Example Embodiment

[0027] Example 2: Use titanium dioxide colloid to scrape the film on transparent conductive glass ITO, sinter at 450℃ for 30min to obtain nanoporous structured wide band gap semiconductor titanium dioxide film, then soak in 5mmol / L dye solution for 24 hours, take it out with absolute ethanol Rinse, this TiO 2 The porous membrane is 0.5mol / L Ga(H 2 PO 2 ) 3 / Isopropanol solution is soaked for 15 minutes, rinsed with ethanol and then dried, placed in the air for 1 hour to obtain a dye-sensitized photoanode. Using quasi-solid electrolyte and platinum-plated conductive glass as the counter electrode, the battery is assembled. At 100mW / cm 2 Under the simulated sunlight, the measured open circuit voltage of the battery is 0.68V, and the short-circuit current is 7.24mA / cm 2 , The fill factor is 63.9%, and the total photoelectric conversion efficiency is 3.15%.

Example Embodiment

[0028] Example 3: Use titanium dioxide colloid to scrape the film on transparent conductive glass ITO, sinter it at 450℃ for 30min to obtain nanoporous structured wide-gap semiconductor titanium dioxide film, then soak it in 5mmol / L dye solution for 12 hours, take it out with absolute ethanol Rinse, this TiO 2 The porous membrane is at 1mol / L Ti(OC 4 H 9 ) / Butanol solution soaked for 2 minutes, rinsed with ethanol and dried, placed in the air for 1 hour to obtain a dye-sensitized photoanode. Using quasi-solid electrolyte and platinum-plated conductive glass as the counter electrode, the battery is assembled. At 100mW / cm 2 Under the white light irradiation, the measured open circuit voltage of the battery is 0.713V, and the short-circuit current is 7.18mA / cm 2 , The fill factor is 64.9%, and the total photoelectric conversion efficiency is 3.32%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Short circuit currentaaaaaaaaaa
Short circuit currentaaaaaaaaaa
Login to view more

Abstract

A later-modified method for dye-sensitized photo anode in a dye-sensitized solar cell belongs to the field of dye-sensitized solar cell, which is characterized in that after complement absorbing dye of a prepared nanometer porous TiO2 photo anode, the dye-sensitized photo anode is modified with metal compound layer, and the later-modified method of dye-sensitized photo anode has two advantages: on one hand, preventing agglomeration of dye through exchanging of in-situ proton in order to reduce backward composition of electrodes injected through TiO2 guiding belt and an oxidation-reduction pair in electrolyte and improve photoelectric conversion efficiency of solar cell; on the other hand, separating TiO2 and electrolyte in space to restrain solvent process of dye desorbing from surface of TiO2 and dissolving into electrolyte and preventing electrolyte from being degraded by TiO2 with a good photo-catalysis performance in order to improve stability of solar cell, and after being modified by metal compound layer, the dye-sensitized solar cell improves the photoelectric conversion efficiency by 20 percent and the stability of unsealed battery largely surpasses battery without later-modified layer.

Description

Technical field: [0001] The invention relates to the field of designing dye-sensitized solar cell materials, in particular to the post-modification method of metal compounds on dye-sensitized nanoporous TiO2 membranes Background technique: [0002] At present, 80% of the world's energy comes from fossil fuels represented by petroleum and coal. With the rapid increase of world population and the rapid development of human society, the growth and consumption of human energy demand are also getting faster and faster. But as non-renewable energy, fossil energy cannot meet the long-term needs of human beings. People's demand for environmentally friendly renewable energy technology is becoming more and more urgent. With its unique advantages, solar cells have attracted people's attention and are considered to be the most promising new energy utilization method. [0003] The amount of solar energy resources is very huge, and it is almost not limited by geographical conditions, an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01L31/18H01L51/48H01L21/283H01G9/04H01G9/20H01M14/00H01M4/04
CPCY02E60/12Y02E10/542Y02E10/549Y02E60/10Y02P70/50
Inventor 邱勇罗芬王立铎吴学明吴骅
Owner 北京索尔泰克能源技术研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap