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Organic dye, its production and use

An organic dye and reaction technology, applied in the field of organic dye and its preparation, can solve the problems of complex synthesis, troublesome separation and purification, waste of photons, etc., and achieve the effect of simple synthesis and purification, high absorption and utilization rate, and easy availability of raw materials

Inactive Publication Date: 2007-09-05
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the synthesis of this dye is complicated, especially the separation and purification is more troublesome
Moreover, as we all know, the peak of the solar spectrum is around 700nm, and currently N3 can only cover visible light and part of the near-infrared region, where most of the photons are wasted

Method used

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  • Organic dye, its production and use
  • Organic dye, its production and use
  • Organic dye, its production and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, the preparation of organic dye

[0023] One, the preparation of organic dye R1 (R in formula I is formula II structure)

[0024]

[0025] 1. Diethylaminobenzyl alcohol quaternary phosphine salt (20.68g) and thiophene-2-carbaldehyde (3.8g) were dispersed in 120ml of anhydrous tetrahydrofuran, and stirred at room temperature. Potassium tert-butoxide (15.5 g) was dissolved in 40 ml of anhydrous tetrahydrofuran, slowly added dropwise to the reaction system at room temperature, and stirred at room temperature for 10 h. Pour 30ml of water into the reaction system, stir for 10min, extract with chloroform, collect the oil phase, and dry over anhydrous sodium sulfate. After the solvent was removed by rotary evaporation, the residue was passed through a silica gel column, and the mobile phase was a mixed solvent of petroleum ether and dichloromethane with a volume ratio of 4:1, and the intermediate product a was eluted.

[0026] 2. Dissolve 20ml of DMF (dimethy...

Embodiment 2

[0038] Embodiment 2, preparation and performance measurement of solar cell device

[0039] The FTO glass was washed with water and ethanol, respectively, O 3 / UV treatment for 18 minutes, and then coated with a layer of nano-TiO 2 Colloid, heated at 450°C for 30 minutes, cooled to room temperature, immersed in 0.5mmol / L dye solution for 12 hours. The electrolyte layer includes 0.6M N-methyl-N-butyl imidazolium salt, 0.05M I 2 , 0.1M LiI, 0.5M tert-butylpyridine, dissolved in acetocyanide and valerocyanide solution with a volume ratio of 1:1, and then form a sandwich structure solar cell device with a platinum counter electrode. Using a 300W xenon lamp as the light source, the measured photoelectric conversion efficiencies of the two dyes are 2.68% (dye R1: R is the structure of formula II) and 2.63% (dye R2: R is the structure of formula III).

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Abstract

An organic dye, its production and use are disclosed. In the structural formula, R is substituted group with IIor III structure. The process is carried out by inducing thiofuran or thiophthene conjugated system connected with double bond as electronic relay and synthesizing organic dye with carboxyl group and electronic feeder-electronic relay-electronic receptor structure. It's simple and cheap and has excellent light absorption utilization rate.

Description

technical field [0001] The invention relates to an organic dye and its preparation method and application. Background technique [0002] With the continuous development of human beings, the exploitation and consumption of mineral resources are also accelerating, and the energy crisis has begun to attract global attention. Solar energy is an important clean and renewable energy source. Forty minutes of sunlight radiating to the earth is enough to consume the world's energy for a year. The research on converting solar energy into electrical energy has gone through decades, and silicon and other inorganic semiconductor solar cells have also been successfully applied. However, due to its high requirements for material purity and complicated processes, the cost is high and only It has been applied in aerospace and other fields, but it is difficult to promote it to the civilian field on a large scale. [0003] In 1990, Swiss scientist Grtzel's research group reported a solar ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B57/00H01L31/00
Inventor 李绍路蒋克健杨联明
Owner INST OF CHEM CHINESE ACAD OF SCI
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