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Ionic liquid modified carbine, preparation method for same and application thereof

An ionic liquid and modified technology, which is applied in the field of solar cells, can solve the problems of low efficiency, low conductivity, and limited filling rate of sensitized solar cells, and achieve cost reduction and operation process, simple preparation method, and good stability Effect

Inactive Publication Date: 2012-08-15
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, until now, the conversion efficiency of all solid-state dye-sensitized nanocrystalline solar cells is still low
According to literature reports and our research experience, the factors that limit the low efficiency of solid-state dye-sensitized solar cells mainly include the following two aspects: (1) The solid electrolyte is generally a polymer, but due to the large molecular size of the polymer, it is limited in nanometer TiO 2 The filling rate in the pores leads to the fact that the oxidized dye molecules cannot be reduced by the solid electrolyte in time
Therefore, the current of the solid-state dye-sensitized solar energy is lower; (2) The low conductivity of the polymer solid electrolyte limits the transport speed of the carriers, reducing the current and fill factor of the battery

Method used

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  • Ionic liquid modified carbine, preparation method for same and application thereof
  • Ionic liquid modified carbine, preparation method for same and application thereof
  • Ionic liquid modified carbine, preparation method for same and application thereof

Examples

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Effect test

Embodiment 1

[0022] Embodiment 1: the preparation of piperidine derivatives:

[0023] In a 100 mL round-bottomed flask, mix 8.6 g (0.1 mol) of piperidine with 100 mL of anhydrous tetrahydrofuran, and mix 11.9 g (0.1 mol) of propyne bromide under vigorous stirring. The reaction was stirred for 48 h and filtered to obtain a slightly yellow product. Then the solvent was removed by rotary evaporation, and 9 g of slightly yellow liquid was obtained, yield: 71%.

Embodiment 2

[0024] Example 2: Preparation of imidazole derivatives

[0025] In a 250 mL round-bottomed flask, mix 13.6 g (0.2 mol) imidazole with 100 mL of anhydrous tetrahydrofuran, and mix 24 g (0.2 mol) propyne bromide under vigorous stirring. The reaction was stirred for 48 h and filtered to obtain a slightly yellow product. Then the solvent was removed by rotary evaporation, and 15 g of slightly yellow liquid was obtained, yield: 70%.

Embodiment 3

[0026] Embodiment 3: preparation based on the polyyne of imidazole ionic liquid modification:

[0027] In a 50 mL round-bottomed flask, mix (2 g, 0.019 mol) imidazole and methyl iodide (4.5 g, 0.03 mol), then add 5-30 mL of methanol, at 0-100 o The reaction was stirred at C for 24-72 h, and filtered to obtain 2.9 g of slightly yellow product. The conductivity is 40 S / cm, ( figure 1 a).

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Abstract

The invention belongs to the technical field of solar cells, and particularly relates to ionic liquid modified carbine, a preparation method for the same and application thereof. The preparation method for the ionic liquid modified carbine employs autocatalysis and auto polymerization without any catalyst. The melting point of the ionic liquid modified carbine exceeds 80 DEG C so as to accord with the highest use temperature of a dye-sensitized solar cell. Ionic liquid is high in electric conductivity at the room temperature, and the electric conductivity at the room temperature reaches 40mS / cm. The ionic liquid modified carbine is applied to the all-solid dye-sensitized solar cell with energy conversion efficiency of 6.25%. The preparation method is simple, raw materials are inexpensive and available, operation process is simplified and cost of the cell is reduced by applying the carbine to the all-solid dye-sensitized solar cell, and the cell is high in stability and suitable for mass production.

Description

Technical field [0001] The present invention belongs to the field of solar battery technology, which involves a polychen and preparation methods and applications that specifically involves a kind of ionic liquid modification, especially a high -tech rate. The ionic liquid is a clustering iodine salt and their preparation of the pendant.Methods and applications in the allergic solar battery in all -solid -state dyes. Background technique [0002] Since the discovery of iodine or arsenic in 1977, the poly acetomine membrane doped with a arsenic has metal conductivity, people's research on polycons is very hot.However, due to its large co -system system prepared with traditional methods, the solubility in ordinary organic solvents is low, which makes it difficult to process solution processing.And because the common bonds are easy to react with the oxygen in the air, the cymbal -based compounds are generated, resulting in the destruction of the covaruing system and the reduction of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F138/00C08F8/00C07D233/58C07D295/037H01G9/028H01G9/20H01M14/00
CPCY02E10/542
Inventor 王忠胜王鸿
Owner FUDAN UNIV
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