Organic dye for dye sensitized solar cell and preparation method of organic dye

A technology of solar cells and organic dyes, applied in photosensitive equipment, styrene-based dyes, circuits, etc., can solve the problems of environmental pollution and high prices, and achieve the effect of simple raw materials, low cost and easy availability of raw materials

Inactive Publication Date: 2011-06-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing noble metal-containing complex sensitizers cannot be popularized on a large scale due to high price and environmental pollution, and provide a new type of pure organic sensitizer containing phenothiazine-triphenylamine cascaded electron donor Dye and preparation method thereof, the prepared organic dye has the characteristics of low cost, environmental friendliness, simple and controllable preparation process, and can be used in organic dye thin film solar cells

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  • Organic dye for dye sensitized solar cell and preparation method of organic dye
  • Organic dye for dye sensitized solar cell and preparation method of organic dye
  • Organic dye for dye sensitized solar cell and preparation method of organic dye

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Embodiment Construction

[0054] Synthesis of Phenothiazine-Triphenylamine Cascade Electron Donating Organic Dyes I and II

[0055] The synthetic routes of organic dyes I and II are as follows:

[0056]

[0057] The specific synthesis method is:

[0058] Slowly add the dimethylformamide solution of phosphorus oxychloride containing 3eq triphenylamine dropwise into the dimethylformamide solution of triphenylamine, heat and reflux for 10-20 hours after the dropwise addition, remove the solvent, pass through a silica gel column Chromatography afforded compound 1. Take compound 1 and 1.3eq potassium iodide of compound 1 and add it to a three-necked flask, then add acetic acid and water (volume ratio 10:1), heat to 80°C, then add 1.5eq potassium iodate of compound 1, stir for 5 hours, filter After recrystallization with ethanol, compound 2 was obtained. The phenothiazine of 11.6264mmol6g compound 2, 3eq compound 2, the potassium carbonate of 12.5eq compound 2, the copper powder of 6.3eq compound 2, th...

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Abstract

The invention provides an organic dye for a dye sensitized solar cell and a preparation method of the organic dye, belonging to the technical field of organic high polymer materials and relating to a dye sensitized solar cell technology. In the provided organic dye, phenothiazine-triphenylamine is used as a cascading electron donor, and the organic dye provided by the invention belongs to a D-D-pi-A structured molecule and is novel organic dye containing a phenothiazine-triphenylamine cascading electron donating group. The organic dye provided by the invention is applied to the dye sensitizedsolar cell, and higher photoelectric conversion efficiency is obtained. The preparation method has the characteristics of low cost and simple, controllable preparation process and environmental friendliness. The novel organic dye molecule belongs to a pure organic compound, expensive raw material metal ruthenium does not need to be used, the novel organic dye is easy to synthesize, and has low cost and potential application prospect in the aspect of substituting noble metal organic dyes.

Description

technical field [0001] The invention belongs to the technical field of organic polymer materials, relates to the technical field of dye-sensitized solar cells, in particular to a phenothiazine-triphenylamine cascaded electron-donating organic dye that can be used in dye-sensitized solar cells and a preparation method thereof. Background technique [0002] Since 1991 Michael at the Swiss Federal Institute of Technology in Lausanne After the research team led by the professor made a breakthrough in the study of nanocrystalline thin film solar cells (Nature 1991, 353, 737), nanocrystalline thin film solar cells have attracted attention due to their low cost, simple preparation and high photoelectric conversion rate. It has attracted extensive attention and research from researchers all over the world. At present, the photoelectric conversion efficiency of this type of cell can be stabilized at more than 10% under simulated sunlight, but the cost is only 1 / 5 to 1 / 10 of silicon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B23/14H01M14/00H01L51/46H01L51/48H01G9/004H01G9/20
CPCY02E10/50Y02E10/542Y02E10/549
Inventor 贾春阳万中全
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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