Self assembled nano wires

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a novel technique to fabricate self assembled nano wires on substrates, or channels of nano dimensions on thin films. The width of the wires or channels can be 50 nm and below, but their lengths can be 100s of micro meters. The technique is as follows: a substrate is coated by a film which is then strained either by applying load on the film-substrate system or by residual stress of the film itself. If the stress on the film exceeds that of its fracture stress, the film cracks with nano-dimensional opening to the substrate. The pattern of the cracks on the film depends on the type of stress (uniaxial or biaxial), strength of the interface between the substrate and the film, and the fracture strength of the film. Thus, the crack pattern can be controlled by tuning such parameters. The self assembled network of cracks can be used as nano channels, or the cracks can be filled by a metal that bonds with the substrate, which, after removal of the cracked film, gives a network of nano wires. We present the results of our initial experiments which have resulted Nickel wires on Si substrate. The wires are 300nm wide and millimeters long.

Original languageEnglish (US)
Title of host publicationMicroelectromechanical Systems
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages83-85
Number of pages3
ISBN (Print)0791836428, 9780791836422
DOIs
StatePublished - 2002

Fingerprint

Wire
Substrates
Cracks
Fracture toughness
Loads (forces)
Residual stresses
Tuning
Nickel
Thin films
Metals
Experiments

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Saif, M. T. A., Alaca, B. E., & Sehitoglu, H. (2002). Self assembled nano wires. In Microelectromechanical Systems (pp. 83-85). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2002-33327

Self assembled nano wires. / Saif, M Taher A; Alaca, B. Erdem; Sehitoglu, Huseyin.

Microelectromechanical Systems. American Society of Mechanical Engineers (ASME), 2002. p. 83-85.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Saif, MTA, Alaca, BE & Sehitoglu, H 2002, Self assembled nano wires. in Microelectromechanical Systems. American Society of Mechanical Engineers (ASME), pp. 83-85. https://doi.org/10.1115/IMECE2002-33327
Saif MTA, Alaca BE, Sehitoglu H. Self assembled nano wires. In Microelectromechanical Systems. American Society of Mechanical Engineers (ASME). 2002. p. 83-85 https://doi.org/10.1115/IMECE2002-33327
Saif, M Taher A ; Alaca, B. Erdem ; Sehitoglu, Huseyin. / Self assembled nano wires. Microelectromechanical Systems. American Society of Mechanical Engineers (ASME), 2002. pp. 83-85
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