Dye sensitization nanocrystalline thin-film solar cell high pore space flexible carbon to electric pole and preparation method thereof

A technology of solar cells and sensitized nanocrystals, which is applied in the fields of nanomaterials and new energy, can solve problems such as high cost, limited catalytic area, and peeling off, and achieve the effects of reducing usage, reducing manufacturing costs, and overcoming flatness errors

Inactive Publication Date: 2008-03-12
NANJING UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] Liquid electrolyte dye-sensitized batteries have the problem of battery damage due to high electrolyte vapor pressure, that is, the peeling off of packaging materials and porous TiO2 films, electrolyte leakage and solvent evaporation due to thermal expansion and contraction of the solution at high temperatures.
[0007] The counter electrode is based on conductive glass, and the catalyst Pt is attached to the heterogeneous and flat glass surface. Compared with the three-dimensional porous diffusion microstructure, its catalytic area is limited, which restricts the improvement of battery efficiency.
[0008] In addition, both the working electrode and the counter electrode use conductive glass (FTO, ITO) as the substrate, which is costly, and the thickness of the battery is at least twice the thickness of conductive glass, which is not conducive to the portability of battery installation and use.

Method used

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  • Dye sensitization nanocrystalline thin-film solar cell high pore space flexible carbon to electric pole and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] (1) Preparation of Pt / C catalyst

[0024] Direct reduction of chloroplatinic acid to prepare 10% Pt / C Add 100mg of the treated carbon black to 2.5ml of isopropanol to improve its wettability, add 5ml of twice distilled water to make a suspension, and ultrasonically stir for 15min to mix evenly. Add H2PtCl6.6H20 solution containing 25mg of Pt, stir ultrasonically for 30min, raise the temperature to 80°C, keep it for 2h, adjust the pH of the solution to neutral with 1mol / LNa2CO3, use sodium formate as reducing agent, continue to stir at 80°C for 45min, and cool to Suction filter at room temperature, wash until there is no chloride ion in the filtrate, vacuum-dry the precipitate at 80°C for 12h, and then heat-treat at 800°C for 30min in flowing argon.

[0025] (2) Preparation of Pt / C catalyst by inorganic colloid method

[0026] (i) First add 0.3g solid NaHSO to 10mL 0.0125mol / L H2PtCl6 solution 3 , the reaction produces the intermediate H 3 Pt(SO 3 ) 2 OH; use 0.075m...

Embodiment 1

[0034] Example 1: Use 175c, 3MPa, 3 minutes, polytetrafluoroethylene film + hot-pressed film + carbon fiber membrane with three-dimensional porous diffusion microstructure + working electrode, and the peripheral seal is complete.

Embodiment 2

[0035] Example 2: Use 175c, 1MPa, 2 minutes, polytetrafluoroethylene film + hot-pressed film + carbon fiber membrane with three-dimensional porous diffusion microstructure + working electrode, and the peripheral seal is complete.

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Abstract

A highly porous flexible carbon counter electrode used for solar battery of the dye sensitize amino-quinoline thin film is provided, which comprises an composite film composed by a carboform membrane layer with a microstructure of three dimensional porous diffusion and polyafluortetraethylene thin membrane layer; a titanium dioxide semiconductor expanded film equipped on the said composite film as the working electrode of the semiconductor. The preparation method of the electrode is: greying the arboform membrane and platinum black to the nanometer-carried; sensitizing the counter electrode used of the solar battery with the dye of the composite film, which forms dye sensitize solar battery with the working electrode of the semiconductor oxide based on the rigid stratum; greying the arboform membrane and platinum black to the nanometer-carried, which is composed with the polyafluortetraethylene thin membrane to form a composite film, which forms dye sensitize solar battery with the working electrode of the semiconductor oxide based on the rigid stratum.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and an electrode of a solar cell, in particular to a high-porosity flexible carbon counter electrode of a dye-sensitized nano-film solar cell and a preparation method thereof, and also belongs to the technical field of new energy. Background technique [0002] Energy issues are related to global sustainable development and have become a key factor restricting social development. Compared with the expensive production cost and complicated preparation process of silicon solar cells, which currently occupy a dominant position in the market, the most attractive feature of dye-sensitized solar cells (DSSC) is its cheap raw materials and relative It has simple manufacturing process, stable performance and low attenuation, and has great application prospects. [0003] In 1991, Grtzel applied nanoporous TiO2 film with high specific surface area to dye-sensitized solar cells, and the photoelectric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/18H01L51/46H01L51/48H01L21/28H01G9/042H01G9/20H01M14/00H01M4/02H01M4/04
CPCY02E10/542Y02E10/549Y02E60/12Y02E60/10Y02P70/50
Inventor 邹志刚田汉民于涛刘斌张晓波吕俊王湘艳
Owner NANJING UNIV
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