Please use this identifier to cite or link to this item:
|Title:||Connection of nanostructures using nanowires grown by a self-field emission process||Authors:||Thong, J.T.L.
|Issue Date:||2002||Citation:||Thong, J.T.L., Oon, C.H., You, G.F., Yeong, K.S. (2002). Connection of nanostructures using nanowires grown by a self-field emission process. Proceedings of SPIE - The International Society for Optical Engineering 4936 : 26-34. ScholarBank@NUS Repository. https://doi.org/10.1117/12.476097||Abstract:||A technique for growing single metallic nanowires through a process of field-emission from a pointed structure is described. The field-emission of electrons in the presence of metal-carbonyls results in the deposition and growth of nanowires with diameters typically ranging from 3 to 30 nm, depending on the precursor used and growth conditions. Lengths range typically from several to tens of microns. Transmission electron microscope analysis of the nanowires shows that they are overcoated with a thin (∼nm) layer of carbon which prevents the oxidation and corrosion of the encapsulated wire. Tungsten, iron and cobalt nanowires have been grown from their respective carbonyls. Current-voltage measurements of tungsten nanowires show ohmic behaviour at room temperature, yielding resistivity values 11-17 times that of bulk tungsten. Tungsten wires with inner core diameters of 4-5 nm are able to withstand current densities of greater than 5×1011 Am-2 before failure. Free-standing nanowires thus grown from vertically-aligned nanostructures such as carbon nanotubes can be made to contact a substrate electrode by electrostatic attraction. The technique opens up the possibility of making electrical contacts to nanostructures that are otherwise not easily contactable.||Source Title:||Proceedings of SPIE - The International Society for Optical Engineering||URI:||http://scholarbank.nus.edu.sg/handle/10635/83576||ISSN:||0277786X||DOI:||10.1117/12.476097|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 24, 2021
checked on Mar 1, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.