A Controllable Patterned Ultrafast Laser Composite Fabrication Method of Metal Oxide Nanowires

An ultrafast laser, oxide technology, applied in the preparation of oxide/hydroxide, oxygen/ozone/oxide/hydroxide, chemical instruments and methods, etc., can solve the problems of complex process and high cost, Achieve the effect of accelerating the growth process, improving support strength and reducing cracking
CN104649233BActive Publication Date: 2017-01-11TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2017-01-11

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Abstract

The invention discloses a controllable patterning ultrafast laser composite preparation method for metal oxide nano wires. The method comprises the following steps: (1), according to a preset pattern, irradiating the surface of a block metal by utilizing ultrafast laser to obtain a patterning micro-nano structure, namely a metal oxide nanowire precursor, on the block metal; and (2), under the oxidizing atmosphere, heating the block metal attached with the metal oxide nanowire precursor, and keeping the temperature, and cooling down, so that the metal oxide nanowires in-situ grow on the metal oxide nanowire precursor. According to the controllable patterning ultrafast laser composite preparation method for the metal oxide nano wires, by utilizing control of the ultrafast laser processing procedure on the structure distribution form of the metal surface micro-nano precursor, the control on the metal oxide nanowire distribution form can be realized; meanwhile, by virtue of the control on factors, such as the heating temperature, the heat preservation time and the oxidization atmosphere, in a thermal oxidization process, the control on the diameters, the lengths and the growth density of the metal oxide nanowires can be realized.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterial preparation and laser micro-nano manufacturing, and in particular relates to a controllable patterned ultrafast laser compound preparation method of metal oxide nanowires. Background technique

[0002] Copper oxide (CuO) nanowire is an excellent one-dimensional semiconductor nanomaterial with special electrical, magnetic, optical, catalytic, gas-sensing and other physical and chemical properties. It is used in solar cells, photodetectors, photocatalysis, Lithium-ion batteries, supercapacitors, field emission devices, biological / gas sensors, and superhydrophobic / self-cleaning materials have potential application values, and have attracted great attention from researchers at home and abroad. The controllable patterning preparation of CuO nanowires is of great significance for giving full play to its special properties and realizing its industrial application.

[0003] Existing methods for prep...

Claims

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