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Corannulene perovskite solar cell hole transport layer material and preparation method and application thereof

A solar cell and hole transport layer technology, applied in the field of solar cell materials, can solve the problems of high production cost, low photoelectric conversion efficiency, and difficulty in meeting people's use needs, achieve high glass transition temperature, improve stability and photoelectricity Effect of Conversion Efficiency, Good Solubility and Electron Donating Properties

Active Publication Date: 2021-06-18
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although many corannene derivatives have been synthesized, and it has been proved that these derivatives have certain electrical properties, the existing corannene derivatives not only have complicated preparation process, high production cost, but also poor stability and photoelectricity. The conversion efficiency is low, it is difficult to meet the needs of people

Method used

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  • Corannulene perovskite solar cell hole transport layer material and preparation method and application thereof
  • Corannulene perovskite solar cell hole transport layer material and preparation method and application thereof
  • Corannulene perovskite solar cell hole transport layer material and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The structural formula of the hole-transporting layer material of the cowannyl perovskite solar cell of this embodiment is:

[0040]

[0041] The synthetic route is as follows:

[0042]

[0043] Weigh 100mg (0.114mmol) pentaboronyl substituted corannene, 240mg (0.627mmol) compound 1, 181mg (1.71mmol) sodium carbonate and 26mg (0.0228mmol) tetrakistriphenylphosphine palladium in a 50mL dry two-necked bottle, drum Nitrogen evacuation was repeated three times or more to create an anhydrous and oxygen-free reaction environment. Then 20 mL of toluene was added as the reaction solvent, the reaction device was placed in an ultrasonic instrument at room temperature and sonicated for about 10 min, and then the reaction device was placed on a magnetic stirrer and the temperature was raised to 40°C for overnight reaction. During the reaction, the color of the solution gradually deepened. After the reaction was completed, an appropriate amount of ammonium chloride solution w...

Embodiment 2

[0045] The structural formula of the hole-transporting layer material of the cowannyl perovskite solar cell of this embodiment is:

[0046]

[0047] The synthetic route is as follows:

[0048]

[0049] (1) First weigh 1g (4.76mmol) compound 1, 1.83g (4.76mmol) thiophene-2-boronic acid pinacol ester, 1.52g (14.3mmol) sodium carbonate and 35.7mg (0.0309mmol) tetrakistriphenylphosphine Palladium was placed in a 500mL dry two-necked bottle, and vacuum pumped with nitrogen was repeated three times or more to create an anhydrous and oxygen-free reaction environment. Subsequently, 150 mL of toluene was added as a reaction solvent, the temperature was raised to 40° C., and the reaction was heated and stirred for 2 h, and the color of the solution changed from yellow to black. After the reaction was completed, the reaction was quenched with ammonium chloride solution, extracted with dichloromethane, the organic phase was washed three times with water, dried with anhydrous sodium...

Embodiment 3

[0053] The structural formula of the hole-transporting layer material of the cowannyl perovskite solar cell of this embodiment is:

[0054]

[0055] The synthetic route is as follows:

[0056]

[0057] Take a 5mL two-necked flask, a spherical condenser and a magnet of appropriate size and place it in an oven at a temperature of 70-80°C for about 30 minutes, and quickly weigh 15 mg (0.017 mmol, 1eq), 4,4'-dimethoxydiphenylamine 42.9mg (0.187mmol, 11eq), B(OH) 3 (boric acid) 10.5mg (0.17mmol, 10eq), Cu(OAc) 2 (Copper acetate) 3.4mg (0.017mmol, 1eq) into a two-necked flask, set up a reaction system and apply a small amount of vacuum grease to the joints of the above components, add 2mL DMSO (dimethyl sulfoxide), and place the reaction device in an ultrasonic instrument Medium sonication for 10 min to disperse the solid evenly in the DMSO solvent. After the ultrasonication is completed, the temperature is raised to 85°C after connecting the condensate pipe, and the reacti...

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Abstract

The invention discloses a corannulene perovskite solar cell hole transport layer material. The structure of the material takes non-planar pi conjugated molecule corannulene as a core, the core is further expanded, different bridging structures and electron donating functional groups are introduced, and the chemical structural formula of the material is shown in the specification. A preparation method of this kind of molecules mainly adopts corannuleneas the core. The corannulene is subjected to Boron esterification to obtain a boron ester derivative of the corannulene, and bridging molecules and electron donating functional groups are introduced through a coupling reaction; an introduced bridging structure unit and the electron donating functional group can effectively adjust the conjugate length of molecules, change the size of a pi conjugate system of the molecules, improve the solubility of the molecules in an organic solvent, improve accumulation among the molecules and improve the stability and photoelectric conversion efficiency of the perovskite solar cell; and the molecules as a hole transport layer material are applied to a hole transport layer of a perovskite solar cell with an upright structure, have relatively high photoelectric conversion efficiency, and are a very potential hole transport material.

Description

technical field [0001] The invention relates to the technical field of solar cell materials, in particular to a hole-transporting layer material for a corannyl perovskite solar cell and a preparation method and application thereof. Background technique [0002] With the rapid development of society, environmental pollution and energy crisis have gradually become two major social problems faced by human beings. It is imminent to develop new energy sources such as wind energy, tidal energy and solar energy. Solar energy is inexhaustible and inexhaustible, and solar cells that directly convert solar energy into electrical energy are favored by researchers. Among many solar cells, perovskite solar cells (PSCs) have been widely studied due to their advantages of solution processability, low cost, and easy large-area fabrication. In less than a decade, the photoelectric conversion efficiency of perovskite solar cells has continued to rise. At present, the literature reports tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D333/20C07C217/92C07C217/94C07C213/00C07C211/54C07C211/56C07C211/58C07C211/59C07C211/61C07C209/00C07C209/68C07C323/36C07C319/20H01L51/46H01L51/48H01L51/42
CPCC07D333/20C07C217/92C07C217/94C07C213/00C07C211/54C07C211/56C07C211/58C07C211/59C07C211/61C07C209/00C07C209/68C07C323/36C07C319/20C07F5/025H10K85/624H10K85/615H10K85/655H10K85/631H10K85/636H10K85/633H10K30/15H10K30/00Y02E10/549
Inventor 谢素原安明伟吴宝山苏茵邓林龙张前炎
Owner XIAMEN UNIV
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