Production method for semiconductor quantum point-contained dye sensitization battery

A dye-sensitized battery and semiconductor technology, applied in the field of dye-sensitized batteries containing semiconductor quantum dots, can solve the problems of high price, complicated preparation process, and difficult source, and achieve stable working temperature range, high photoelectric conversion efficiency, and preparation method simple effect

Inactive Publication Date: 2009-04-08
上海拓引数码技术有限公司
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In dye-sensitized titanium dioxide solar cells, many dyes have very weak absorption in the near-infrared region, and their absorption spectra cannot match well with the solar spectrum, and it is difficult to

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
  • Production method for semiconductor quantum point-contained dye sensitization battery
  • Production method for semiconductor quantum point-contained dye sensitization battery
  • Production method for semiconductor quantum point-contained dye sensitization battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A thin layer of titanium dioxide is first sputtered on conductive glass (FTO) by magnetron sputtering, and a titanium dioxide layer with a porous structure is obtained by means of sol-gel technology on it by spin-coating (Spin-Coating). Thin layer thickness is 1-20 μm. Soaking in thioglycolic acid solution containing mercapto and carboxylic acid groups, carboxylate groups can be adsorbed on the surface of titanium dioxide. The cadmium selenide semiconductor quantum dots are prepared by high-temperature pyrolysis, and the cadmium selenide semiconductor quantum dots are dissolved in toluene after washing and centrifugal separation. The conductive glass containing the porous titanium dioxide thin layer is immersed in the quantum dot solution. Due to the function of the complex metal ion of the mercapto group, it can complex the cadmium selenide quantum dots, and then the cadmium selenide quantum dots are assembled into the pores of the porous titanium dioxide thin layer. ...

Embodiment 2

[0039] A thin layer of titanium dioxide is sputtered on conductive glass (FTO) by magnetron sputtering, and a titanium dioxide layer with a porous structure is obtained on it by means of sol-gel technology, and the thickness of the thin layer is 1-20 μm.

[0040] Prepare cadmium telluride, cadmium selenide, and zinc telluride quantum dots by high-temperature pyrolysis. After washing and particle size screening, different quantum dots with the same particle size are dissolved in toluene solution, and thioglycolic acid is added to the surface of the quantum dots. for modification and complexation.

[0041] Soak the conductive glass containing the porous titanium dioxide layer in the solution containing the zinc selenide quantum dots prepared above. Then, put them into the solution containing cadmium selenide quantum dots and cadmium telluride quantum dots in order to soak. Carboxyl groups can be adsorbed on the surface of titanium dioxide. In this way, zinc selenide, cadmium s...

Embodiment 3

[0043]A thin layer of titanium dioxide is firstly sputtered on conductive glass (FTO) by magnetron sputtering, and a titanium dioxide layer with a porous structure is obtained on it by sol-gel technology, and the thickness of the thin layer is 1-20 μm.

[0044] The cadmium selenide quantum dots were prepared by high temperature pyrolysis, and the products with different reaction times were taken. After washing, dissolve in toluene solution (see figure 1 ), adding thioglycolic acid to modify and complex the quantum dot surface.

[0045] Soak the conductive glass containing the porous titanium dioxide layer in the above prepared cadmium zinc selenide quantum dot solution containing blue light emitting wavelength. Next, soak them in the yellow fluorescent and red fluorescent cadmium selenide quantum solutions in sequence. Carboxyl groups can be adsorbed on the surface of titanium dioxide. In order to assemble cadmium selenide quantum dots with different particle sizes into the...

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
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method used for a dye-sensitized solar cell containing semiconductor quantum dots, comprising the steps as follows: by a magnetron sputtering method, a TiO2 layer is sputtered on conductive glass; furthermore, the TiO2 layer is prepared as a porous shape; the conductive glass is dipped in an organic matter containing mercapto and carboxy group; subsequently, a group of semiconductor quantum dots are added in the holes of the porous TiO2 layer; a dye, electrolyte and a pair of electrodes are added in the organic matter so as to form the dye-sensitized solar cell containing the semiconductor quantum dots. Compared with the prior art, the preparation method has the advantages that by changing the type, particle size and shape of the quantum dot, the peak position of the absorption spectrum can be easily changed and almost all of the sunlight can be absorbed; furthermore, the dye-sensitized solar cell has high photoelectric conversion efficiency and is extremely stable within the working temperature range of the solar cell; the cost is effectively reduced and the preparation method is simple when the quantum dots are adopted to replace the fuel containing the rare metal in part.

Description

technical field [0001] The invention relates to a dye-sensitized battery containing semiconductor quantum dots, in particular to the preparation of the semiconductor quantum dot dye-sensitized battery. Background technique [0002] At present, in the research field of nano solar cells, choosing a suitable sensitizer has become the research focus of nano solar cells. In dye-sensitized titanium dioxide solar cells, many dyes have very weak absorption in the near-infrared region, and their absorption spectrum cannot match well with the solar spectrum, and it is difficult to select and prepare. The preparation process of ruthenium pyridine is relatively complicated, and ruthenium itself is a rare metal, so the price is relatively expensive and the source is relatively difficult. In order to improve the photoelectric conversion rate of nanometer photoelectrochemical cells, selecting different sensitizers to sensitize the cells has become an urgent problem. [0003] Among them, ...

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): H01G9/20H01G9/004H01G9/042H01G9/048H01M14/00H01L51/48
CPCY02E10/542Y02E10/549
Inventor 包健施松林夏芃刘古岩
Owner 上海拓引数码技术有限公司
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