Doping dye sensitized solar cell photo anode, preparation method and application thereof

A technology of solar cells and dye sensitization, applied in the field of solar cells, can solve the problems of unsatisfactory complexity and product performance, and achieve the effects of improving photoelectric conversion performance, suppressing dark current and good repeatability

Inactive Publication Date: 2011-05-25
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing methods cannot reach a satisfactory l

Method used

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  • Doping dye sensitized solar cell photo anode, preparation method and application thereof
  • Doping dye sensitized solar cell photo anode, preparation method and application thereof
  • Doping dye sensitized solar cell photo anode, preparation method and application thereof

Examples

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Example Embodiment

[0037] Example 1:

[0038] a. Preparation of doped SiO 2 TiO 2 Slurry:

[0039] Take 5g of P25 powder and add SiO 2 With TiO 2 Mix well, SiO 2 The quality is TiO 2 Add 1 mL of acetic acid to 2.5% of the mass in turn, add 5 mL of deionized water in 5 times of 1 mL each time, add 15 mL of absolute ethanol in 15 times of 1 mL each time, and add 15 mL of absolute ethanol in 6 times of 2.5 mL each time. Add anhydrous ethanol and stir for 3 minutes each time; then add 100 mL of anhydrous ethanol to obtain a slurry; stir the slurry magnetically for 10 minutes at a stirring speed of 300 revolutions / minute; then disperse by ultrasonic for 60 minutes; then add 20 g Terpineol, repeat the magnetic stirring and ultrasonic dispersion; then add 3g ethyl cellulose and 30g absolute ethanol to repeat the magnetic stirring and ultrasonic dispersion; finally in the rotary evaporator at 40 ℃ for 6 hours rotary distillation to obtain the screen printing Slurry, referred to as slurry B.

[0040] b. Prepa...

Example Embodiment

[0045] Example 2:

[0046] The preparation method of this embodiment is the same as that of embodiment 1, the difference is SiO 2 The addition amount is TiO 2 5% by mass, the paste that can be used for screen printing obtained in step a is denoted as paste C.

Example Embodiment

[0047] Example 3:

[0048] The preparation method of this embodiment is the same as that of embodiment 1, the difference is SiO 2 The addition amount is TiO 2 7.5% of the mass, the paste that can be used for screen printing obtained in step a is denoted as paste D.

[0049] The printed four-layer SiO obtained by scanning electron microscope (FE-SEM) analysis on the surface and section of the composite film 2 / TiO 2 The thickness of the slurry after sintering is about 17.9 μm. by Figure 4 , 5 It can be seen that the composite film is smooth, the nanoparticles are uniformly distributed, and form a network structure connected to each other. In the larger particles (TiO 2 ) Has a relatively small distribution (for SiO 2 ), this small particle not only adds TiO 2 The effective connection between particles also makes TiO 2 The bond with conductive glass is stronger.

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Abstract

The invention discloses a doping dye sensitized solar cell photo anode, preparation method and application thereof, wherein the doping dye sensitized solar cell photo anode is divided into three layers in structure; the first layer is a common glass; the second layer is a SnO2 transparent conductive film doped with F; the third layer is a nanocrystalline porous composite film formed by doping the nano particle with mesoporous semiconductor at wide band with nanocrystalline semiconductor particles, wherein dyes are attached on the nanocrystalline porous composite film. The doping dye sensitized solar cell photo anode is used in doping dye sensitized solar cells. The doping dye sensitized solar cell photo anode of the invention can improve the photoelectric conversion performance of cells and increase the photoelectric conversion efficiency of solar cells well, and has the advantages of simple preparing technology, good repeatability and low cost; the doping dye sensitized solar cell photo anode not only can be used in dye sensitized solar cell materials, but also can be used in the fields of photocatalysis, gas sensitive material and the like.

Description

1. Technical field [0001] The invention relates to a mesoporous semiconductor-doped nanocrystalline titanium dioxide photoanode, its preparation method and application, specifically a doped dye-sensitized solar cell photoanode, its preparation method and application, and belongs to the technical field of solar cells. 2. Background technology [0002] Solar energy is an inexhaustible, clean and renewable resource with unique advantages and huge potential for development and utilization. It is the most promising new energy source in the future. In a broad sense, solar energy is the source of many energies on the earth, such as wind energy, chemical energy, potential energy of water, etc. Solar energy in a narrow sense is limited to the direct conversion of solar radiation to heat, photoelectricity and photochemistry. Making full use of solar energy is conducive to maintaining the harmonious coexistence between man and nature and the coordinated development of energy and the e...

Claims

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Application Information

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IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/42H01L51/44H01L51/48
CPCY02E10/542Y02E10/50Y02E10/549
Inventor 徐进章牛海红万磊张守伟刘玲
Owner HEFEI UNIV OF TECH
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