Titanium dioxide photoelectrode and preparation method thereof

A technology of titanium dioxide and photoelectrode, which is applied in the field of solar photoelectric conversion, can solve the problems of large influence of light absorption, inability to adsorb dyes, small specific surface area, etc., and achieve good repeatability, increase transmission speed, and large specific surface area.

Inactive Publication Date: 2012-10-31
PEKING UNIV
View PDF3 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the titanium dioxide nanorod/wire array has a much smaller specific surface area than the titanium dioxide nano

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
  • Titanium dioxide photoelectrode and preparation method thereof
  • Titanium dioxide photoelectrode and preparation method thereof
  • Titanium dioxide photoelectrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] The following describes the present invention in detail through embodiments with reference to the accompanying drawings, but does not limit the scope of the present invention in any way.

[0021] The invention prepares a novel high-efficiency nano composite structure titanium dioxide photoelectrode through a simple liquid phase method, the process is simple, and the photoelectric conversion performance of the structure is significantly improved.

[0022] First prepare TiO 2 Nanorods / wire arrays can use methods such as hydrothermal method and template method. Taking the hydrothermal method as an example, the specific preparation process is: putting a mixture of hydrochloric acid, deionized water and tetrabutyl titanate (volume ratio 60:60:1) and conductive glass into an autoclave and heating to 150°C. After 12 hours, the titanium oxide nanowire array is neatly arranged on the surface of the conductive glass, as shown in the reference picture.

[0023] After the titanium dioxid...

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

No PUM Login to view more

Abstract

The invention provides a titanium dioxide photoelectrode and a preparation method thereof, and belongs to the solar photovoltaic conversion field. The titanium dioxide photoelectrode comprises an electroconductive substrate and a titanium dioxide nanorod (or nanowire) array arranged on the electroconductive substrate; and the titanium dioxide nanorod array is filled with titanium dioxide nanoparticles. According to the invention, a secondary structure of the titanium dioxide nanoparticles is constructed by adopting a simple liquid phase method on the basis of the titanium dioxide nanorod array; a membrane in a titanium dioxide nanorod-nanoparticle composite structure is formed; the prepared photoelectrode has the advantages that the specific surface area is large, and the electronic transmission performance is high; the adsorption of the electrode to a sensitizer is improved; and the transmission speed of an electron in the titanium dioxide electrode is increased, so that the photovoltaic conversion efficiency of a titanium dioxide dye (or quantum dot) sensitized solar battery is increased.

Description

technical field [0001] The invention belongs to the field of photoelectric conversion of solar energy, and specifically relates to a novel high-efficiency nano-composite structure titanium dioxide film and a preparation method thereof, and a photoelectrode using the compound structure film. Background technique [0002] The use of titanium dioxide as a photoelectrode is a field that has been studied more and has a good application prospect. Titanium dioxide has quickly become a research hotspot due to its cheap, stable and high-efficiency advantages. Studies have shown that titanium dioxide nanorod / wire array structure films have good electron transport channels and electron collection efficiency due to their regular arrangement. However, the titanium dioxide nanorod / wire array has a much smaller specific surface area than the titanium dioxide nanoparticle film, which makes it unable to absorb a sufficient amount of dye, which has a great impact on light absorption. If the...

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): H01G9/042H01G9/20H01M14/00H01L51/44H01L51/48
CPCY02E10/549
Inventor 孙文涛彭练矛艾果
Owner PEKING UNIV
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