Preparation method for dye-sensitized solar cell counter electrode based on nickel sulfide nanosheets

A technology of solar cells and dye sensitization, which is applied in the field of preparation of counter electrodes of dye-sensitized solar cells based on nickel sulfide nanosheets, can solve the problems of complex process steps and difficulty in large-scale production, and achieve easy control and repeatability of preparation parameters. Good performance and high electrocatalytic activity

Active Publication Date: 2013-12-25
山东百帝气动科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process steps of the above-mentioned preparation method are complex and difficult to produce on a large scale
At present, there are no related reports on the direct synthesis of two-dimensional nickel sulfide nanostructures.

Method used

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  • Preparation method for dye-sensitized solar cell counter electrode based on nickel sulfide nanosheets
  • Preparation method for dye-sensitized solar cell counter electrode based on nickel sulfide nanosheets
  • Preparation method for dye-sensitized solar cell counter electrode based on nickel sulfide nanosheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 0.35g of nickel ethylxanthate powder and put it in a vacuum drying oven, place the glass sheet near the nickel ethylxanthate powder, heat to 200°C, keep it warm for 30 minutes, cool to room temperature and take out the glass sheet to obtain vulcanization Nickel nanosheet array counter electrode.

[0028] Preparation of solar cell: Assemble the dye-sensitized titanium dioxide nanocrystalline photoanode and the prepared counter electrode, and inject electrolyte solution to make a dye-sensitized solar cell (for specific preparation methods, please refer to the literature Nature, 1991, 353-737).

[0029] figure 2 is a scanning electron micrograph of nickel sulfide nanosheets.

[0030] image 3 is the conductivity curve of the nickel sulfide nanosheet array. It can be seen from the figure that the room temperature conductivity of nickel sulfide nanosheet array is as high as 2.6×10 5 S / m.

[0031] Figure 4is the cyclic-voltammetry curve of the nickel sulfide n...

Embodiment 2

[0034] Weigh 0.5g of nickel isobutyl xanthate powder into a box-type resistance furnace, place a polyimide plastic sheet near the nickel isobutyl xanthate powder, heat to 160°C, keep it warm for 200 minutes, and cool to room temperature Take out the polyimide plastic sheet to obtain the nickel sulfide nanosheet array counter electrode. The solar cell preparation method is the same as that in Example 1.

Embodiment 3

[0036] Weigh 0.2g of nickel propylxanthate powder and put it into a tubular resistance furnace, place the glass sheet near the nickel propylxanthate powder, heat to 360°C, keep it warm for 10 minutes, cool to room temperature and take out the glass sheet to obtain Nickel sulfide nanosheet array counter electrode. The solar cell preparation method is the same as that in Example 1.

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Abstract

The invention discloses a preparation method for a dye-sensitized solar cell counter electrode based on nickel sulfide nanosheets. The method includes the steps that (1) nickel xanthate precursor is synthesized; (2) the nickel sulfide nanosheet counter electrode is prepared, firstly, a substrate is cleaned by the adoption of ethyl alcohol and acetone and dried for use, then, the substrate is placed to the position, nearby the nickel xanthate precursor, in a heating device and heated to 160-360 DEG C, the temperature is kept for 10-300mins, and the substrate is cooled to normal temperature and taken out to obtain the nickel sulfide nanosheet counter electrode; (3) a dye-sensitized titanium dioxide photo anode and the prepared counter electrode are assembled together, an electrolytic solution is injected to obtain a dye-sensitized solar cell, and the dye-sensitized solar cell counter electrode is compared with a traditional platinized conducting glass counter electrode to test photovoltaic conversion performance of the dye-sensitized solar cell counter electrode. The preparation method is simple in technical process, good in repeatability and excellent in material and device performance and can be produced on a large scale in an industrialized mode, and the preparation parameters are easy to control. Through the processes, common multi-step complex processes, long process periods and expensive high-vacuum devices can be avoided.

Description

technical field [0001] The invention relates to a new energy material and solar cell technology, in particular to a method for preparing a counter electrode of a dye-sensitized solar cell based on nickel sulfide nanosheets. Background technique [0002] At present, the dye-sensitized solar cell was invented by Professor Graetzel of the Swiss Federal Institute of Technology. Its main advantages are low cost, simple manufacturing process, and high efficiency. It is a solar cell with great use value, and it is also very promising to replace crystalline silicon solar cells. be used on a large scale. [0003] Dye-sensitized solar cells are mainly composed of three parts, namely: 1. Photoanode, usually nanocrystalline titanium dioxide film with dye adsorbed; 2. Counter electrode, usually platinum-loaded conductive glass; 3. Electrolyte, usually containing I 3 - / I - redox couple. The photoelectric conversion principle is as follows: 1. The dye molecules adsorbed by the nanocry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/04H01G9/20
CPCY02E10/542
Inventor 夏国栋王素梅
Owner 山东百帝气动科技股份有限公司
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