Type

Journal Article

Authors

Greg Hughes
Rajani K. Vijayaraghavan
Enda McGlynn
Justin Bogan
Anthony McCoy
Lee Walsh
A. Brady
Conor Byrne

Subjects

Chemistry

Topics
xrd nanotechnology chemistry aluminium crystallography cual alloy spectrum analysis self forming barrier copper xps materials

Chemical and electrical characterisation of the segregation of Al from a CuAl alloy (90%:10% wt) with thermal anneal (2016)

Abstract A copper-aluminium (CuAl) alloy (90% : 10% wt) has been investigated in relation to segregation of the alloying element Al, from the alloy bulk during vacuum anneal treatments. X-ray photoelectron spectroscopy (XPS) measurements were used to track the surface enrichment of Al segregating from the alloy bulk during in situ ultra-high vacuum anneals. Secondary ion mass spectroscopy (SIMS) indicates a build-up of Al at the surface of the annealed alloy relative to the bulk composition. Metal oxide semiconductor (MOS) CuAl/ SiO2/Si structures show a shift in flatband voltage upon thermal anneal consistent with the segregation of the Al to the alloy/SiO2 interface. Electrical four point probe measurements indicates that the segregation of Al from the alloy bulk following thermal annealing results in a decrease in film resistivity. X-ray diffraction data shows evidence for significant changes in crystal structure upon annealing, providing further evidence for expulsion of Al from the alloy bulk.
Collections Ireland -> Dublin City University -> Publication Type = Article
Ireland -> Dublin City University -> Subject = Physical Sciences: Chemistry
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Physical Sciences: Spectrum analysis
Ireland -> Dublin City University -> Subject = Physical Sciences: Nanotechnology
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Electronic Engineering
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: National Centre for Plasma Science and Technology (NCPST)
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Science and Health: School of Physical Sciences
Ireland -> Dublin City University -> Subject = Engineering: Materials
Ireland -> Dublin City University -> Subject = Physical Sciences: Crystallography

Full list of authors on original publication

Greg Hughes, Rajani K. Vijayaraghavan, Enda McGlynn, Justin Bogan, Anthony McCoy, Lee Walsh, A. Brady, Conor Byrne

Experts in our system

1
Greg Hughes
Dublin City University
Total Publications: 29
 
2
Rajani K. Vijayaraghavan
Dublin City University
Total Publications: 18
 
3
Enda McGlynn
Dublin City University
Total Publications: 80
 
4
Justin Bogan
Dublin City University
Total Publications: 10
 
5
Anthony McCoy
Dublin City University
Total Publications: 6
 
6
Lee A. Walsh
University College Cork
Total Publications: 11
 
7
Conor Byrne
Dublin City University
Total Publications: 11