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Zinc oxide-carbon core-shell nanoparticles and preparation and application thereof

A nanoparticle and zinc oxide technology, which is applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., can solve problems such as limited modification effect, inability to suppress internal defects of zinc oxide, and poor stability of the composite interface layer

Pending Publication Date: 2022-06-24
TAIYUAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, most carbon nanomaterials modify zinc oxide mainly by simple physical blending. This method can only partially improve the surface defects of zinc oxide, and cannot suppress the internal defects of zinc oxide. The modification effect is limited, and this physical modification The resulting composite interfacial layer has poor stability

Method used

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  • Zinc oxide-carbon core-shell nanoparticles and preparation and application thereof
  • Zinc oxide-carbon core-shell nanoparticles and preparation and application thereof
  • Zinc oxide-carbon core-shell nanoparticles and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Weigh 10 mg of o-phenylenediamine, add it to 20 mL of nano-ZnO methanol solution with a concentration of 10 mg / mL, and ultrasonically disperse for 30 min to form a ZnO-o-phenylenediamine mixture with a carbon source material of 5% by mass of nano-ZnO.

[0049] The above-mentioned ZnO o-phenylenediamine mixed solution was placed in a polytetrafluoroethylene sealed tank, placed in a matching reaction kettle, heated to 180° C. in an oven, and subjected to a solvothermal reaction for 10 hours.

[0050] After the reaction was completed, the temperature was naturally cooled, the reaction product was taken out, the supernatant was discarded by centrifugation, and the precipitate was dispersed in methanol as a solvent by strong ultrasonic waves to prepare ZnO@C-5 core-shell nanoparticles.

Embodiment 2

[0052] Weigh 20 mg of o-phenylenediamine, add it to 20 mL of nano-ZnO methanol solution with a concentration of 10 mg / mL, and ultrasonically disperse it for 30 min to form a ZnO-o-phenylenediamine mixture whose carbon source material is 10% by mass of nano-ZnO.

[0053] The above-mentioned ZnO o-phenylenediamine mixed solution was placed in a polytetrafluoroethylene sealed tank, placed in a matching reaction kettle, heated to 180° C. in an oven, and subjected to a solvothermal reaction for 10 hours.

[0054] After the reaction was completed, the temperature was naturally cooled, the reaction product was taken out, the supernatant was discarded by centrifugation, and the precipitate was dispersed in the solvent methanol with strong ultrasonic waves to prepare ZnO@C-10 core-shell nanoparticles.

Embodiment 3

[0056] Weigh 60 mg of o-phenylenediamine, add it to 20 mL of nano-ZnO methanol solution with a concentration of 10 mg / mL, and ultrasonically disperse it for 30 min to form a ZnO-o-phenylenediamine mixture with a carbon source material of 30% by mass of nano-ZnO.

[0057] The above-mentioned ZnO o-phenylenediamine mixed solution was placed in a polytetrafluoroethylene sealed tank, placed in a matching reaction kettle, heated to 180° C. in an oven, and subjected to a solvothermal reaction for 10 hours.

[0058] After the reaction was completed, the temperature was naturally cooled, the reaction product was taken out, the supernatant was discarded by centrifugation, and the precipitate was dispersed in the solvent methanol with strong ultrasonic waves to prepare ZnO@C-30 core-shell nanoparticles.

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Abstract

The invention relates to a zinc oxide-carbon core-shell nanoparticle, which is a product obtained by adding at least one amino and / or carboxyl substituted benzene derivative or pyridine derivative, or silane micromolecules capable of being subjected to coupling reaction with zinc oxide as a carbon source material into a nano zinc oxide methanol solution and carrying out solvothermal reaction at 150-200 DEG C. The zinc oxide and carbon core-shell nanoparticles are coated with the nano-carbon material to inhibit surface defects of zinc oxide, are applied to an electron transport layer of an organic solar cell, can inhibit photocatalytic reaction between zinc oxide and a non-fullerene material, reduce oxygen sites adsorbed by zinc oxide, reduce the occurrence probability of a'light bath 'phenomenon, and improve the photoelectric conversion efficiency of the organic solar cell. And the air and ultraviolet stability of the device is improved.

Description

technical field [0001] The invention belongs to the technical field of organic solar cells, and relates to a cathode interface layer material for organic solar cells, in particular to a zinc oxide@carbon core-shell nanoparticle composite nanomaterial that can be used as a cathode interface layer material, and preparation of the composite nanomaterial method. Background technique [0002] In recent years, organic solar cells (Organic Photovoltaic, OPV) have achieved rapid development due to their advantages such as light weight, roll-to-roll printing, and environmental protection. With the development of non-fullerene small molecule acceptor materials in recent years, organic solar cells Battery power conversion efficiency (Power Conversion Efficiency, PCE) has also made great progress. [0003] For example, the research group of Professor Hou Jianhui of the Institute of Chemistry, Chinese Academy of Sciences (Single-Junction Organic Photovoltaic Cell with 19% Efficiency. A...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/50
CPCH10K30/152H10K50/18Y02E10/549
Inventor 闫翎鹏查汉赵文盛李欣欣杨永珍马昌期王华刘旭光许并社
Owner TAIYUAN UNIV OF TECH
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