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Porphyrin sensitizer and synthesis method thereof

A sensitizer and porphyrin technology, applied in the field of porphyrin sensitizer solar cell sensitizer and its synthesis, can solve the problems of short life, low photoelectric conversion efficiency, poor stability, etc., and achieve spectral performance and thermal stability. Good, extensive research and application, the effect of good spectral responsiveness

Inactive Publication Date: 2018-09-21
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, DSSC still has disadvantages such as low photoelectric conversion efficiency, poor long-term use stability and short life, which limit its large-scale application.

Method used

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  • Porphyrin sensitizer and synthesis method thereof
  • Porphyrin sensitizer and synthesis method thereof
  • Porphyrin sensitizer and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1.59g (1.75mmol) of compound II (R substituting group is hydrogen) was dissolved in a mixed solvent of tetrahydrofuran and methanol (60ml, 1:1), and 10% lithium hydroxide aqueous solution (42mg, 1.75mmol) was added dropwise thereto , heated to reflux for 3h. Then it was neutralized to pH=6 with 0.2% hydrochloric acid, extracted with dichloromethane, concentrated, purified on a silica gel column, and recrystallized from dichloromethane and methanol (1:2) to obtain compound I with a yield of 80%.

[0030]

Embodiment 2

[0032] 1.59g (1.75mmol) of compound II (R substituent is hydrogen) was dissolved in a mixed solvent of tetrahydrofuran and methanol (60ml, 1:1), and 10% aqueous sodium hydroxide solution (70mg, 1.75mmol) was added dropwise thereto , heated to reflux for 3h. Then it was neutralized to pH=6 with 0.2% hydrochloric acid, extracted with dichloromethane, concentrated, purified on a silica gel column, and recrystallized from dichloromethane and methanol (1:2) to obtain compound I with a yield of 82%.

[0033]

Embodiment 3

[0035] 1.59g (1.75mmol) of compound II (R substituent is hydrogen) was dissolved in a mixed solvent of tetrahydrofuran and methanol (60ml, 1:1), and 10% potassium hydroxide aqueous solution (98mg, 1.75mmol) was added dropwise thereto , heated to reflux for 3h. Then it was neutralized to pH=6 with 0.2% hydrochloric acid, extracted with dichloromethane, concentrated, purified on a silica gel column, and recrystallized from dichloromethane and methanol (1:2) to obtain compound I with a yield of 85%.

[0036]

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Abstract

The invention belongs to the technical field of fine organic chemical industry, and in particular relates to a porphyrin sensitizer. The chemical structural formula of the porphyrin sensitizer is described in the description; a synthesis method of the porphyrin sensitizer comprises the step of carrying out a hydrolysis reaction under the alkaline condition to obtain the novel porphyrin sensitizer.The synthesis method is characterized in that the synthesis of the double-anchoring-group porphyrin sensitizer improves the absorption of the sensitizer, thus prolonging the service lives of batteries, and being beneficial to the application in the solar batteries.

Description

technical field [0001] The present invention relates to fine organic chemical technology field, particularly a kind of porphyrin sensitizer solar cell sensitizer and synthesis method thereof. Background technique [0002] New solar cells are new types of thin film cells, including dye-sensitized solar cells and organic polymer solar cells, etc. These cells have attracted widespread attention due to their advantages such as simple manufacturing process, low cost, wide range of material sources, and large-area applications. Based on the above reasons, dye-sensitized solar cells will occupy an important position in the development of photovoltaic cells in the future. Porphyrin sensitizers have good spectral responsiveness, good light, thermal and chemical stability in the Soret band (400-450nm), and strong absorption in the Q-band (550-700nm). However, at present, DSSC still has the disadvantages of low photoelectric conversion efficiency, poor long-term stability and short li...

Claims

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Application Information

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IPC IPC(8): C07D487/22H01G9/042H01G9/20
CPCC07D487/22H01G9/042H01G9/20
Inventor 张诺诺张婷婷梁莹晏佳莹徐彬彬赵倩
Owner CHINA THREE GORGES UNIV
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