Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size

Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size

Aluminum-doped zinc oxide thin films were prepared by solution synthesis where molarity concentrations and mixing ratios for oxide and dopant sources were changed while deposition and pre- and post-deposition annealing steps remained the same. Post-deposition high-temperature annealing is known to i...

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Main Authors: Sana Ullah, Fabio De Matteis, Massimiliano Lucci, Ivan Davoli
Format: Article
Language:English
Published: AIP Publishing LLC 2020-10-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0020213
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spelling doaj-e7894ca68e8e4917b98c948b95fdbbb12020-11-25T03:06:28ZengAIP Publishing LLCAIP Advances2158-32262020-10-011010105016105016-610.1063/5.0020213Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain sizeSana Ullah0Fabio De Matteis1Massimiliano Lucci2Ivan Davoli3Department of Mechanical Engineering, Khwaja Fareed University of Engineering and Information Technology, Abu Dhabi Road, 64200 Rahim Yar Khan, PakistanDipartimento di Ingegneria Industriale, Università Degli Studi di Roma “Tor Vergata”, Via del Politecnico, 1, 00133 Roma, ItalyDipartimento di Fisica, Università degli Studi di Roma “Tor Vergata”, Via della Ricerca Scientifica, 1, 00133 Roma, ItalyDipartimento di Fisica, Università degli Studi di Roma “Tor Vergata”, Via della Ricerca Scientifica, 1, 00133 Roma, ItalyAluminum-doped zinc oxide thin films were prepared by solution synthesis where molarity concentrations and mixing ratios for oxide and dopant sources were changed while deposition and pre- and post-deposition annealing steps remained the same. Post-deposition high-temperature annealing is known to improve conductivity and transparency but may deteriorate the mechanical characteristics of films. However, we report the successful preparation of thin films with high mechanical hardness (>11 MPa) and reduced modulus (>102 MPa) along with high electro-optical characteristics even after multiple annealing steps. Changes in grain sizes because of changes in molarity concentrations and difference of atomic radii caused mechanical characteristics of films. Both regular and inverse Hall–Petch relations were observed.http://dx.doi.org/10.1063/5.0020213
collection DOAJ
language English
format Article
sources DOAJ
author Sana Ullah
Fabio De Matteis
Massimiliano Lucci
Ivan Davoli
spellingShingle Sana Ullah
Fabio De Matteis
Massimiliano Lucci
Ivan Davoli
Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
AIP Advances
author_facet Sana Ullah
Fabio De Matteis
Massimiliano Lucci
Ivan Davoli
author_sort Sana Ullah
title Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
title_short Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
title_full Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
title_fullStr Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
title_full_unstemmed Nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
title_sort nano-indentation mechanical characterizations of solution processed inorganic metal oxide thin films and influence of grain size
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2020-10-01
description Aluminum-doped zinc oxide thin films were prepared by solution synthesis where molarity concentrations and mixing ratios for oxide and dopant sources were changed while deposition and pre- and post-deposition annealing steps remained the same. Post-deposition high-temperature annealing is known to improve conductivity and transparency but may deteriorate the mechanical characteristics of films. However, we report the successful preparation of thin films with high mechanical hardness (>11 MPa) and reduced modulus (>102 MPa) along with high electro-optical characteristics even after multiple annealing steps. Changes in grain sizes because of changes in molarity concentrations and difference of atomic radii caused mechanical characteristics of films. Both regular and inverse Hall–Petch relations were observed.
url http://dx.doi.org/10.1063/5.0020213
work_keys_str_mv AT sanaullah nanoindentationmechanicalcharacterizationsofsolutionprocessedinorganicmetaloxidethinfilmsandinfluenceofgrainsize
AT fabiodematteis nanoindentationmechanicalcharacterizationsofsolutionprocessedinorganicmetaloxidethinfilmsandinfluenceofgrainsize
AT massimilianolucci nanoindentationmechanicalcharacterizationsofsolutionprocessedinorganicmetaloxidethinfilmsandinfluenceofgrainsize
AT ivandavoli nanoindentationmechanicalcharacterizationsofsolutionprocessedinorganicmetaloxidethinfilmsandinfluenceofgrainsize
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