Production method for titanium oxide coating material in dye sensitized solar battery

A technology for solar cells and coating materials, applied in titanium dioxide, titanium oxide/hydroxide, electrode manufacturing, etc., can solve problems such as incomplete crystallization, large particle size of titanium oxide, unsuitable for screen printing process, etc., to achieve Quick response, good dispersibility, and convenient operation

Active Publication Date: 2010-01-20
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nano-TiO prepared by the method enumerated above 2 The sol has the problems of large particle size of titanium oxide, incomplete crystallization and unsuitability for screen printing process

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 titanium oxide coating material in dye sensitized solar battery
  • Production method for titanium oxide coating material in dye sensitized solar battery
  • Production method for titanium oxide coating material in dye sensitized solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Firstly, solution A was prepared: 100 mL of n-butyl titanate was added to 200 mL of ethanol solution, and vigorously stirred to obtain a light yellow transparent solution. Slowly drop solution A into 2000 mL of pure water while vigorously stirring to form milky white sol B. Heat sol B to 90°C and keep it warm for 24 hours, add 200 mL of 3M citric acid, stir vigorously, filter and wash with pure water several times until the pH value of the filtrate is neutral, and white filter cake C is obtained. Dry the filter cake C in vacuum at 60°C, add the white loose powder obtained after drying to the ethanol solution of ethyl cellulose, wherein the weight ratio of ethyl cellulose to titanium oxide is 2:1, mix well and then add 200mL The terpineol was mixed by high-speed ball milling to obtain light yellow titanium oxide colloid D. Titanium oxide colloid D is distilled under reduced pressure to remove ethanol with a lower boiling point to obtain a specific concentration of high-v...

Embodiment 2

[0040] First prepare solution A: add 100mL of titanium isopropoxide to 300mL of ethanol solution, stir vigorously to obtain a clear and transparent solution. Slowly drop solution A into 3000 mL of pure water while vigorously stirring to form milky white sol B. Heat sol B to 90°C and keep it warm for 24 hours, add 300 mL of 3M acetic acid, stir vigorously, filter and wash with pure water several times until the pH value of the filtrate is neutral, and white filter cake C is obtained. Dry the filter cake C in vacuum at 60°C, add the white loose powder obtained after drying to the ethanol solution of ethyl cellulose, wherein the weight ratio of ethyl cellulose to titanium oxide is 2:1, mix well and then add 200mL The terpineol was mixed by high-speed ball milling to obtain light yellow titanium oxide colloid D. Titanium oxide colloid D is distilled under reduced pressure to remove ethanol with a lower boiling point to obtain a specific concentration of high-viscosity titanium ox...

Embodiment 3

[0042] Firstly, solution A was prepared: 100 mL of n-butyl titanate was added to 200 mL of ethanol solution, and vigorously stirred to obtain a light yellow transparent solution. Slowly drop solution A into 2000 mL of pure water while vigorously stirring to form milky white sol B. Heat sol B to 90°C and keep it warm for 24 hours, wash and filter several times with 2000 mL of ethanol-benzene mixture directly to obtain white filter cake C. Dry the filter cake C in vacuum at 60°C, and add the ethanol solution of ethyl cellulose after pulverizing the agglomerated matter obtained after drying, wherein the weight ratio of ethyl cellulose to titanium oxide is 2:1, and mix well Then add 200 mL of terpineol, and mix evenly by high-speed ball milling to obtain light yellow titanium oxide colloid D. Titanium oxide colloid D is distilled under reduced pressure to remove ethanol with a lower boiling point to obtain a specific concentration of titanium oxide coating material. The photoele...

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
particle sizeaaaaaaaaaa
sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to view more

Abstract

The present invention provides a preparation method of titania coating materials applied to the dye sensitization solar battery, which is characterized in that organic titanium alkoxide is adopted as the predecessor body, the colloid of TiO2 that is stably distributed is prepared through the hydrolysis reaction of the organic titanium alkoxide. Organic polybasic acid is added into the colloid of TiO2 to adjust the pH value to be the subacidity (5.5-6.5), the organic residual substances in the colloid of TiO2 is filtered and removed by washing with vast organic solvent. Appropriate amount of industrial viscous agent is added into the clean TiO2 colloid after being washed to be grinded and mixed uniformly at a high speed so as to produce the titania coating material of the dye sensitization solar battery. The present invention has the obvious advantages of simple process, stable quality and friendly environment, and is a method that can be applied to prepare the titania coating material in large scale.

Description

technical field [0001] The invention relates to a method for preparing a titanium oxide coating material in a dye-sensitized solar cell, and belongs to the field of energy materials. Background technique [0002] Since the 1990s, people have discovered the great potential of dye-sensitized solar cells (DSSCs) in the development and utilization of solar energy. Compared with the commonly used crystalline silicon solar cells, dye-sensitized solar cells have low cost and simple manufacturing process, and have unique advantages in promoting the research and utilization of solar energy. As a future-oriented new technology, the nanoscale porous titanium oxide active layer used in dye-sensitized solar cells is only tens of microns thick. In principle, this will make dye-sensitized solar cells suitable for many needs. Highly flexible applications, such as thin-film batteries on flexible substrates, etc. In dye-sensitized solar cells, the ultrafast photo-generated electrons generat...

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 Patents(China)
IPC IPC(8): H01L31/18H01L51/48H01G9/004H01M14/00H01M4/04C01G23/053
CPCY02E60/12Y02E10/549Y02E60/10Y02P70/50
Inventor 高濂谢晓峰
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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