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A kind of polynitrogen heterocyclic supramolecular sensitizer and its application

A sensitizer and supramolecular technology, applied in the field of sensitizers, can solve the problems of intermolecular agglomeration, affecting open circuit voltage and photoelectric conversion efficiency, etc., and achieve the effects of strong three-dimensional structure, improved photoelectric conversion efficiency, and simple molecular assembly

Inactive Publication Date: 2019-10-29
XIAN TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flat structure and intermolecular interactions of polynitrogen heterocycles easily lead to intermolecular aggregation, thus affecting the improvement of open circuit voltage and photoelectric conversion efficiency.

Method used

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  • A kind of polynitrogen heterocyclic supramolecular sensitizer and its application
  • A kind of polynitrogen heterocyclic supramolecular sensitizer and its application
  • A kind of polynitrogen heterocyclic supramolecular sensitizer and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Prepare the polyazaheterocyclic supramolecular sensitizer e, the specific synthesis method is as follows:

[0024] 1. Preparation of compound c

[0025] Add compound a (1.0g, 2.58mmol), compound b (675mg, 2.83mmol), tetrabutylammonium bromide (250mg, 0.78mmol), bis(di-tert-butyl-4-dimethyl Aminophenylphosphine) palladium chloride (20mg, 0.03mmol), NaF (270mg, 6.44mmol) was added to a mixture of N,N-dimethylformamide (40mL) and distilled water (8mL), and reacted at 75°C for 5 hour, stop the reaction, pour the reaction solution into dichloromethane (150mL) after being cooled to room temperature, wash with water until neutral, the organic phase is dried over anhydrous magnesium sulfate, filtered, concentrated under reduced pressure, column chromatography, prepared into yellow The solid compound c0.85g, the yield is 65.8%.

[0026] The nuclear magnetic data of prepared compound c is: 1 H NMR (400MHz,THF-d 8 ): δ(ppm)9.87(s,1H),8.87(d,J=8.5Hz,2H),8.84-8.81(m,4H),7.94(d,J...

Embodiment 2

[0037]The use of polynitrogen-heterocyclic supramolecular sensitizer e in Example 1 in the preparation of dye-sensitized solar cells, its specific use method and application number are 201310343718.6, and the name of the invention is "thiourea donor double bridge chain organic dye and its The method of use disclosed in the invention patent application of "Application" is the same. Simultaneously, a comparative test was performed with the compound d in Example 1. The prepared solar cells were tested using a J-V characteristic testing system (CROWNTECH IV Test Station 2000), and the results are shown in Table 1.

[0038] Table 1 Solar cell performance test results

[0039]

[0040] It can be seen from Table 1 that compared with its precursor sensitizer d, the photoelectric conversion efficiency of the solar cell prepared by using the polynitrogen heterocyclic supramolecular sensitizer e is increased by 14.6%.

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Abstract

The invention discloses a polynitrogen heterocyclic super molecule sensitizer and an application thereof, wherein the sensitizer uses a polynitrogen heterocyclic derivative as an electron donor of thesensitizer, the polynitrogen heterocyclic super molecule sensitizer is formed by an intermolecular hydrogen bond between-N= group and a carboxylic acid small molecule, the structural formula is as shown in the specification, wherein ''suspension points'' represent the intermolecular hydrogen bond. The polynitrogen heterocyclic super molecule sensitizer has simple molecular assembly and strong stereostructure, and can be used for preparing a solar cell with high photoelectric conversion efficiency.

Description

technical field [0001] The invention belongs to the technical field of sensitizers, and in particular relates to a polynitrogen heterocyclic supramolecular sensitizer and its application. Background technique [0002] With the rapid development of science and technology, the contradiction between the ever-increasing energy demand and the depleting energy reserves is intensifying. Therefore, governments all over the world have set their sights on the development and utilization of new energy. Undoubtedly, the inexhaustible and inexhaustible solar energy has become the most active field of new energy development and utilization. How to efficiently convert solar energy into electrical energy has become the core of this subject. [0003] Dye-sensitized solar cells use low-cost nano-titanium dioxide and sensitizers as the main raw materials to convert solar energy into electrical energy. Among them, the sensitizer is the key to solar cells to capture light energy, and its perf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B57/00H01G9/20H01G9/042
CPCC09B57/00H01G9/042H01G9/2059Y02E10/542Y02P70/50
Inventor 朱生勃陈卫星冯震张文治牛小玲
Owner XIAN TECH UNIV
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