Photoelectric material with CuO nanoparticle modified ZnO nanowire array, preparation and application

A nanowire array and nanoparticle technology, applied in the field of nanomaterials, can solve the problems of low light absorption and utilization, and achieve the effects of increasing carrier concentration, high yield, and increasing lifespan
CN110350053AActive Publication Date: 2019-10-18NORTHWEST UNIV(CN)
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTHWEST UNIV(CN)
Publication Date
2019-10-18

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Abstract

The invention discloses a photoelectric material with a CuO nanoparticle modified ZnO nanowire array, preparation and an application. Firstly, a ZnO seed layer film is prepared by adopting a sol-gel method; a ZnO nanowire array is grown on the ZnO seed layer film by adopting a hydrothermal method; and then CuO nanoparticles are adhered on ZnO nanowires by adopting the sol-gel method to obtain theZnO nanowires with the CuO nanoparticles uniformly dispersed on the surfaces. From a microstructure, the composite material has a large specific surface area; the composite material has a large numberof heterojunctions, photon-generated carrier recombination is reduced, and electron-hole pairs are effectively separated, so that the service life and the concentration of carriers are prolonged andincreased; and from physical property fusion, the composite material not only has the light absorption capability of the ZnO nanowires, but also has the light absorption capability of the CuO nanoparticles, is an excellent photoelectric material and has a great prospect in an application to a photoelectric device.
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Description

technical field

[0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a photoelectric material, preparation and application of a CuO nanoparticle-modified ZnO nanowire array. Background technique

[0002] ZnO is an environmentally friendly n-type semiconductor, and compared with other metal oxides with wider band gaps, it has better electron migration performance, stable photocorrosion and good photoelectrochemical properties, and is considered to be The most attractive photoelectricity has a wide range of applications in solar energy storage and utilization, and photoelectric conversion. Transition metal oxides have gradually become a research hotspot for researchers due to their large storage capacity, low cost of use, and their properties in many fields. Among them, copper oxide (CuO, Eg=1.2-1.8eV) is a typical narrow-bandgap p-type semiconductor, which can be obtained in large quantities on the earth and is a well-known...

Claims

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