News Column

Patent Issued for Method for Manufacturing a One-Dimensional Nano-Structure-Based Device

August 20, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- A patent by the inventors Wei, Yang (Beijing, CN); Fan, Shou-Shan (Beijing, CN), filed on March 8, 2006, was published online on August 5, 2014, according to news reporting originating from Alexandria, Virginia, by VerticalNews correspondents.

Patent number 8795495 is assigned to Tsinghua University (Beijing, CN).

The following quote was obtained by the news editors from the background information supplied by the inventors: "The present invention relates to nano-structure-based devices, and particularly to a method for manufacturing a one-dimensional nano-structure-based device.

"In nano technology field, a variety of nano-scale structures (hereinafter called nano-structures), such as carbon nanotubes, silicon nano-threads, and zinc oxide nano-threads, can be artificially synthesized. Nano-structures have been implemented into numerous fields, such as, field effect transistors, sensors, and atomic force microscopes (AFMs).

"For example, as regards the AFM, the probe tip of the AFM generally comprises a nano-structure, such as a bundle of carbon nanotubes or a single carbon nanotube. The carbon nanotube/tubes are generally attached to the probe tip by the following methods: (1) drawing a bundle of carbon nanotubes or a single carbon nanotube out from bundles of carbon nanotubes using the probe tip under an optical microscope; (2) disposing the carbon nanotube/tubes onto the probe tip using another AFM; (3) forming the carbon nanotube/tubes as extensions of the probe tip.

"However, the above-mentioned methods have common shortcomings, in that they are complicated processes, require a lot of time, and have low production efficiency.

"What is needed, therefore is to provide a method for manufacturing a nano-structure-based device that is easy to control, and which is also less time consuming."

In addition to the background information obtained for this patent, VerticalNews journalists also obtained the inventors' summary information for this patent: "A method for manufacturing an apparatus having one dimensional nano-material provided herein generally includes the steps of preparing a solution containing one-dimensional nano-structures; providing a plurality of electrical conductors, each of the electrical conductors having a first tip to be treated; providing a fixing device having a second tip; connecting at least one of the one-dimensional nano-structures with one of the electrical conductors; and repeating the connecting step to another one of the first tips to be treated. Therein, the connecting step further includes the steps of arranging one of the first tips of the electrical conductors and the second tip of the fixing device to be spaced apart from and opposite to each other; applying at least a drop of the solution to the first and second tips thereby the first and second tips being interconnected by the solution; applying a voltage between the first and second tips thereby at least one one-dimensional nano-structures being interconnected between the first and second tips, and removing the liquid solvent of the solution; and separating the second tip of the fixing device from the first tip of the electrical conductor to form the first tip having the one-dimensional nano-structures connecting therewith.

"These and other features, aspects, and advantages of the present one-dimensional nano-structure-based device will become more apparent from the following detailed description and claims, and the accompanying drawings."

URL and more information on this patent, see: Wei, Yang; Fan, Shou-Shan. Method for Manufacturing a One-Dimensional Nano-Structure-Based Device. U.S. Patent Number 8795495, filed March 8, 2006, and published online on August 5, 2014. Patent URL:

Keywords for this news article include: Fullerenes, Nanotechnology, Carbon Nanotubes, Tsinghua University, Emerging Technologies.

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Source: Journal of Engineering

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