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

One-dimensional ultralong TiO2 nanorod array, preparation method thereof and application thereof in dye-sensitized solar cell

A nanorod array, solar cell technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of easy detachment of rods, short length of nanorods, small specific surface area, etc. Achieve the effect of optimizing the specific surface area, solving the small specific surface area, and increasing the short-circuit current

Active Publication Date: 2019-06-21
HUBEI UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] In order to overcome the shortcomings of the above-mentioned prior art, we have invented a method of programmed annealing to stably prepare ultra-long one-dimensional TiO 2 Nanorod array method, which solves the traditional hydrothermal preparation of TiO 2 Nano-rods are short in length, small in specific surface area, annealed to improve the crystallinity of the rods, easy to fall off, and difficult in mass production. In order to repeatably and stably prepare one-dimensional TiO with high specific surface area 2 Nanorod arrays offer the possibility

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
  • One-dimensional ultralong TiO2 nanorod array, preparation method thereof and application thereof in dye-sensitized solar cell
  • One-dimensional ultralong TiO2 nanorod array, preparation method thereof and application thereof in dye-sensitized solar cell
  • One-dimensional ultralong TiO2 nanorod array, preparation method thereof and application thereof in dye-sensitized solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The one-dimensional ultra-long TiO of this embodiment 2 A method for preparing a nanorod array, the method comprising the steps of:

[0071] (1) Pretreatment of fluorine-doped tin oxide transparent conductive glass (FTO) substrate

[0072] The FTO conductive glass with a thickness of 2mm and a square structure of 2cm×2cm in length and width (the thickness of the conductive layer is 380nm) is ultrasonically cleaned with decontamination powder, deionized water, acetone, and isopropanol in sequence. Each step The time is 30 minutes, and the washed FTO base is directly put into a vacuum drying oven at 70°C for drying, and it is set aside.

[0073] (2) Titanium tetrachloride aqueous solution preparation

[0074] Prepare a solution concentration of 0.3mol L in a fume hood -1 Measure the titanium tetrachloride aqueous solution with a plastic dropper, slowly drop it into 500mL ice-water mixed deionized water at a height of 1 to 2 cm from the liquid surface, and keep stirring...

Embodiment 2

[0082] The one-dimensional ultra-long TiO of this embodiment 2 A method for preparing a nanorod array, the method comprising the steps of:

[0083] (1) Pretreatment of fluorine-doped tin oxide transparent conductive glass (FTO) substrate

[0084] The FTO conductive glass with a thickness of 2mm and a square structure of 2cm×2cm in length and width (the thickness of the conductive layer is 380nm) is ultrasonically cleaned with decontamination powder, deionized water, acetone, and isopropanol in sequence. Each step The time is 30 minutes, and the washed FTO base is directly put into a vacuum drying oven at 70°C for drying, and it is set aside.

[0085] (2) Titanium tetrachloride aqueous solution preparation

[0086] Prepare a solution concentration of 0.3mol L in a fume hood -1 Measure the titanium tetrachloride aqueous solution with a plastic dropper, slowly drop it into 250mL ice-water mixed deionized water at a height of 1 to 2 cm from the liquid surface, and keep stirring...

Embodiment 3

[0094] The one-dimensional ultra-long TiO of this embodiment 2 A method for preparing a nanorod array, the method comprising the steps of:

[0095] (1) Pretreatment of fluorine-doped tin oxide transparent conductive glass (FTO) substrate

[0096] The FTO conductive glass with a thickness of 2mm and a square structure of 2cm×2cm in length and width (the thickness of the conductive layer is 380nm) is ultrasonically cleaned with decontamination powder, deionized water, acetone, and isopropanol in sequence. Each step The time is 30 minutes, and the washed FTO base is directly put into a vacuum drying oven at 70°C for drying, and it is set aside.

[0097] (2) Titanium tetrachloride aqueous solution preparation

[0098] Prepare a solution concentration of 0.3mol L in a fume hood -1 Measure the titanium tetrachloride aqueous solution with a plastic dropper, slowly drop it into 100mL of ice-water mixed deionized water at a height of 1 to 2 cm from the liquid surface, and keep stirr...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a one-dimensional ultralong TiO2 nanorod array, a preparation method thereof and application thereof in a dye-sensitized solar cell. According to the invention, a plurality ofconductive substrates are fixed to a plurality of TiO2 nanorod arrays with uniform height produced in a reaction kettle by adopting a support method; the problems that a one-dimensional TiO2 nanorod array is easy to fall off from the conductive substrates and is difficult for mass production in a hydrothermal mode are effectively solved by combining with a muffle furnace program-controlled recrystallization annealing; and meanwhile, the obtained TiO2 nanorod array is subjected to hydrothermal etching by combining with the support method, so that the problems that the one-dimensional TiO2 nanorod array is small in specific surface area, insufficient in dye adsorption quantity and the like are effectively solved. The TiO2 nanorod array obtained by the invention demonstrates excellent electron transmission capacity and dye adsorption capacity, 11.14% of photoelectric conversion efficiency is obtained when the TiO2 nanorod array is applied to the dye-sensitized solar cell, and the possibility is provided for stable mass production of the high-efficiency dye-sensitized solar cell based on the one-dimensional TiO2 nanorod array photo-anode.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic materials, in particular to one-dimensional ultra-long TiO 2 Nanorod array and its preparation method and application in dye-sensitized solar cells. Background technique [0002] Dye-sensitized solar cells have attracted extensive research since they were first reported by Grazel et al. [1-3] , usually DSSC consists of a mesoporous film (photoanode), a single layer of dye molecules, electrolyte and counter electrode, mesoporous TiO 2 After the particle membrane adsorbs dye molecules, under the irradiation of sunlight, the dye molecules absorb sunlight to generate excited charges and inject electrons into TiO2. 2 The electrons are then transported to the electrode, while the redox couple of the electrolyte enables rapid regeneration of the excited state dye [4-6] . Mesoporous TiO 2 Due to the large number of grain boundaries between particles and the large number of defects on the surfa...

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): H01G9/20H01G9/042C01G23/053B82Y40/00B82Y30/00
CPCY02E10/542Y02P70/50
Inventor 王浩万经树张军桃李
Owner HUBEI UNIV
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