Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing Al2O3-ZnO nanorod array composite electrode

A nanorod array and composite electrode technology, applied in the field of nanomaterials, can solve the problems that affect the conversion efficiency of dye-sensitized solar cells and have not achieved significant improvement, and achieve the effects of simple process, uniform surface and stable performance

Inactive Publication Date: 2011-04-27
UNIV OF SCI & TECH BEIJING
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production of this complex will seriously affect the conversion efficiency of dye-sensitized solar cells
At present, some researchers try to prevent acid dyes from reducing the performance of batteries based on ZnO nanomaterials by introducing some other compounds, but these methods have not achieved significant improvement.

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
  • Method for preparing Al2O3-ZnO nanorod array composite electrode
  • Method for preparing Al2O3-ZnO nanorod array composite electrode
  • Method for preparing Al2O3-ZnO nanorod array composite electrode

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] 1. Dissolve equimolar chemically pure zinc nitrate and hexamethylenetetramine with ionized water to prepare a reaction solution with a molar concentration of 0.05mol / L.

[0024] 2. Cut 5 pieces of FTO conductive glass coated with a 100nm thick ZnO film as a seed layer into 2cm×1cm as a growth substrate, put them directly into the above solution, and seal and react at 95°C for 24 hours.

[0025] 3. After the reaction is over, take out the substrate. Rinse repeatedly with deionized water first, and after drying, it can be seen that a uniform white translucent film is formed on the substrate, and this film is the prepared ZnO nanorod array.

[0026] 4. Aluminum isopropoxide and distilled water are configured into an alumina sol with a molar ratio of 1:200.

[0027] 5. Take 0.1 ml of the above-mentioned alumina sol and drop it on the surface of five ZnO nanorod array electrodes respectively. Then spin for 10 seconds at 1000 rpm in low gear and 15 seconds at 3000 rpm in hi...

example 2

[0030] 1. Dissolve equimolar zinc nitrate and hexamethylenetetramine with ionized water to prepare a reaction solution with a molar concentration of 0.15 mol / L.

[0031] 2. Cut 5 pieces of FTO conductive glass coated with a 100nm thick ZnO film as a seed layer into 2cm×2cm as a growth substrate, put them directly into the above solution, and seal and react at 80°C for 12 hours.

[0032] 3. Take out the substrate after the reaction. A uniform white translucent film can be obtained on the substrate, and the film is the prepared ZnO nanorod array.

[0033] 4. Aluminum isopropoxide and distilled water are configured into an alumina sol with a molar ratio of 1:200.

[0034] 5. Take 0.1 ml of the above-mentioned alumina sol and drop it on the surface of five ZnO nanorod array electrodes respectively. Then spin for 10 seconds at 1000 rpm in low gear and 15 seconds at 3000 rpm in high gear. And the above spin-coating process was repeated twice to obtain a uniform colloidal layer on t...

example 3

[0037] 1. Dissolve equimolar zinc nitrate and hexamethylenetetramine with ionized water to prepare a reaction solution with a molar concentration of 0.05mol / L.

[0038] 2. Cut 5 pieces of aluminum glass plated with a 100nm thick ZnO film as a seed layer into 2cm×1cm size as a growth substrate, put them directly into the above solution, and seal and react at 95°C for 24 hours.

[0039] 3. Take out the substrate after the reaction. A uniform milky white film can be obtained on the substrate, and the film is the prepared ZnO nanorod array.

[0040] 4. Aluminum isopropoxide and distilled water are configured into an alumina sol with a molar ratio of 1:200.

[0041] 5. Take 0.1 ml of the above-mentioned alumina sol and drop it on the surface of five ZnO nanorod array electrodes respectively. Then spin for 15 seconds at 1000 rpm in low gear and 15 seconds at 3000 rpm in high gear. And the above spin-coating process was repeated twice to obtain a uniform colloidal layer on the ZnO...

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 discloses a method for preparing an Al2O3-ZnO nanorod array composite electrode, which belongs to the technical field of nano materials. The method specifically comprises the following steps of: a, dissolving Zn(NO3)2 and (CH2)6N4 in the same molar weight into deionized water to prepare reaction solution at the concentration of 0.05 to 0.2 M; b, directly placing a conductive substrate serving as a growth substrate coated with a ZnO seed crystal layer into the solution, and performing reaction for 12 to 24 hours at 80 to 100 DEG C to obtain a ZnO nanorod array electrode; and c, coating alumina sol onto the surface of the ZnO nanorod array electrode by using a spin-coating method, and performing heat treatment to obtain the Al2O3-ZnO nanorod array composite electrode. The method effectively inhibits the corrosion of the surface of the ZnO electrode and the generation of a Zn<2+> / dye coordination compound; the sol spin-coating method is simple, and an Al2O3 thin film coating with a uniform surface and a large area can be obtained; and the thickness of the Al2O3 thin film coating can be rationally controlled by regulating the concentration, coating number of layers and sintering times of the sol. The performance of a dye sensitized solar cell assembled by the composite electrode is greatly stabilized.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and in particular provides a method for improving the acid corrosion resistance of a zinc oxide electrode during dye sensitization by introducing an aluminum oxide protective layer, and relates to a highly stable dye sensitized Preparation method of solar cell anode. Background technique [0002] In recent years, ZnO nanomaterials have attracted the attention of researchers in the field of nanostructured devices due to their excellent properties. It has broad application prospects in ultraviolet light-emitting devices, field emission devices, piezoelectric transducers, sensors, etc. (M.H.Huang, S.Mao, H.Feick, H.Q.Yan, Y.Y.Wu, H.Kind, E.Weber, R.Russo, P.D.Yang, Science 292(2001) 1897; Y.H.Huang, X.D.Bai, Y.Zhang, J.Phys.Condens.Matter 18(2006)179; X.D.Wang, J.H.Song, J.Liu, Z.L.Wang, Science 316(2007)102; M.Law, L.E.Greene, J.C.Johnson, R.Saykally, P.D.Yang, Nat.Mater.4 (2005) 455.) At ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/48
CPCY02E10/50Y02E10/542Y02E10/549
Inventor 张跃秦子黄运华廖庆亮张铮
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com