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Thiourea functionalized micromolecular co-sensitizing adsorbent

A functional, small molecule technology, applied in the field of organic dyes, can solve the problems of intermolecular agglomeration, narrow light absorption range, low photoelectric conversion efficiency, etc., and achieve the effect of short transmission path, small molecular structure and simple configuration

Active Publication Date: 2014-08-13
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, single dye photosensitizers often have low photoelectric conversion efficiency due to intermolecular agglomeration or narrow light absorption range, which brings great obstacles to the development of organic dye-sensitized solar cells.

Method used

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  • Thiourea functionalized micromolecular co-sensitizing adsorbent
  • Thiourea functionalized micromolecular co-sensitizing adsorbent
  • Thiourea functionalized micromolecular co-sensitizing adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Synthesis of thiourea functionalized small molecule co-sensitive adsorbent Ⅰ, the specific synthesis route and method are as follows:

[0026]

[0027] 1. Preparation of compound b

[0028] Under nitrogen protection, 8.56g (20.0mmol) of compound a, 50mL of toluene, and 6.46g (16.0mmol) of Lawson's reagent were successively added to a 100mL three-necked flask with a thermometer, and the stirring was started, and the reaction was refluxed for 12 hours, and the reaction solution was lowered to After reaching room temperature, filter out the insoluble matter, evaporate the filtrate to remove the solvent, and then purify by column chromatography (the developing solvent is a mixture of petroleum ether and ethyl acetate with a volume ratio of 8:1, and the filler is 200-300 mesh silica gel ), to obtain compound b6.65g, the yield was 75.0%.

[0029] 2. Preparation of compound f

[0030] Under nitrogen protection, 1.56g (10.0mmol) compound e, 3g (6.8mmol) compound b, 0.66g (...

Embodiment 2

[0035] Synthesis of thiourea functionalized small molecule co-sensitive adsorbent II, the specific synthesis route and method are as follows:

[0036]

[0037] In step 2 of Example 1, the compound e used was replaced with an equimolar compound g, and the other steps were the same as in Example 1 to prepare co-sensitive adsorbent II.

[0038] The NMR data of the prepared co-sensitive adsorbent II are: 1 H NMR (300MHz, CDCl 3 ): δ (ppm) 8.38 (s, 1H), 7.81 (s, 1H), 7.65 (s, 1H), 7.47 (d, J=4.2Hz, 1H), 7.33 (s, 1H), 7.19 (d, J=4.2Hz, 1H), 4.31(t, J=3.9Hz, 2H), 4.28(t, J=3.9Hz, 2H), 1.87-1.79(m, 4H), 1.47-1.32(m, 12H), 0.89 (t, J=3.3Hz, 6H).

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Abstract

The invention discloses a thiourea functionalized micromolecular co-sensitizing adsorbent. The structural formula of the adsorbent is as shown in the specification, wherein R refers to C1-6 alkyls, and Ar refers to thiophene and derivatives thereof. The co-sensitizing adsorbent disclosed by the invention has the characteristics of small molecular structure, simple configuration, and short transfer path of charges in molecules, and the like; when the co-sensitizing adsorbent is co-sensitized with other organic dyes, an effect of ultraviolet absorption complementation can be achieved, and therefore, the co-sensitizing adsorbent can be used as a co-sensitizing adsorbent for dye sensitized solar cells.

Description

technical field [0001] The invention belongs to the technical field of organic dyes, and in particular relates to a thiourea functionalized small molecule co-sensitive adsorbent. Background technique [0002] With the improvement of living conditions, people's demand for energy is gradually increasing. Since the energy reserves of countries in the world are very limited, scientific and technological workers have turned their attention to the development and utilization of new energy. Undoubtedly, inexhaustible and inexhaustible solar energy is 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 dye photosensitizers as the main raw materials to convert solar energy into electrical energy. Among them, the dye photosensitizer is the key to affect the light absorption efficiency of the batte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D409/04C07D495/04H01G9/20
CPCY02E10/542C07D409/04C07D495/04H01G9/2059H01G9/2063
Inventor 安忠维朱生勃陈新兵陈沛
Owner SHAANXI NORMAL UNIV
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