Staff View: Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect

Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect

Nowadays, a smaller electronic integrated circuit demands a smaller width and pitch of interconnect. Copper (Cu) interconnect, which is currently the most common, suffers from the size effect and grain boundary scattering. Hence, carbon materials such as carbon nanotubes (CNTs) and carbon nanofiber...

Full description

Saved in:

Bibliographic Details
Main Authors:	Rosmi, Mohamad Saufi, Yaakob, Yazid, Mohd. Yusop, Mohd. Zamri, Md. Isa, Illyas, Sidik, Siti Munirah, Abu Bakar, Suriani, Masaki, Tanemura
Format:	Article
Published:	Microscopy Society of Malaysia 2022
Subjects:	Q Science (General) TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/102905/ https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/article/view/621
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.utm.102905
record_format	eprints
spelling	my.utm.1029052023-09-26T06:21:07Z http://eprints.utm.my/id/eprint/102905/ Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect Rosmi, Mohamad Saufi Yaakob, Yazid Mohd. Yusop, Mohd. Zamri Md. Isa, Illyas Sidik, Siti Munirah Abu Bakar, Suriani Masaki, Tanemura Q Science (General) TJ Mechanical engineering and machinery Nowadays, a smaller electronic integrated circuit demands a smaller width and pitch of interconnect. Copper (Cu) interconnect, which is currently the most common, suffers from the size effect and grain boundary scattering. Hence, carbon materials such as carbon nanotubes (CNTs) and carbon nanofiber (CNF), as well as their nanocomposites are potential replacement materials for Cu interconnects. However, the interaction of carbon atoms and its metal catalyst is quite critical for obtaining nanocarbon structure with precise layer number, crystal size and structure. Here, an in-situ transmission electron microscopy (TEM) observation of graphitic hollow structure growth from a single Au-incorporated carbon nanofiber (Au-CNF) during current-voltage (I-V) measurement is demonstrated. With an applied potential in a two-probe system, significant structural change of Au-CNF was discovered. Due to Joule heating and a considerable temperature gradient, the Au nanoparticles agglomerated and evaporated under high current flow ranging from 1.35 to 18.7 µA. The TEM images and electron diffraction pattern revealed that after the current flow, the amorphous carbon structure of CNF was converted to a hollow sp2 graphitic carbon structure catalyzed by dispersed Au particles. The graphitic carbon structure, however, collapsed in the center at a higher applied potential of 60 A due to excessive current flow and induced Joule heating. The direct observation of graphene synthesis thru in-situ TEM is important for revealing the solid phase interaction of Au and carbon atoms. Microscopy Society of Malaysia 2022-12-22 Article PeerReviewed Rosmi, Mohamad Saufi and Yaakob, Yazid and Mohd. Yusop, Mohd. Zamri and Md. Isa, Illyas and Sidik, Siti Munirah and Abu Bakar, Suriani and Masaki, Tanemura (2022) Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect. Malaysian Journal of Microscopy, 18 (2). pp. 215-224. ISSN 1823-7010 https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/article/view/621 NA
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	Q Science (General) TJ Mechanical engineering and machinery
spellingShingle	Q Science (General) TJ Mechanical engineering and machinery Rosmi, Mohamad Saufi Yaakob, Yazid Mohd. Yusop, Mohd. Zamri Md. Isa, Illyas Sidik, Siti Munirah Abu Bakar, Suriani Masaki, Tanemura Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect
description	Nowadays, a smaller electronic integrated circuit demands a smaller width and pitch of interconnect. Copper (Cu) interconnect, which is currently the most common, suffers from the size effect and grain boundary scattering. Hence, carbon materials such as carbon nanotubes (CNTs) and carbon nanofiber (CNF), as well as their nanocomposites are potential replacement materials for Cu interconnects. However, the interaction of carbon atoms and its metal catalyst is quite critical for obtaining nanocarbon structure with precise layer number, crystal size and structure. Here, an in-situ transmission electron microscopy (TEM) observation of graphitic hollow structure growth from a single Au-incorporated carbon nanofiber (Au-CNF) during current-voltage (I-V) measurement is demonstrated. With an applied potential in a two-probe system, significant structural change of Au-CNF was discovered. Due to Joule heating and a considerable temperature gradient, the Au nanoparticles agglomerated and evaporated under high current flow ranging from 1.35 to 18.7 µA. The TEM images and electron diffraction pattern revealed that after the current flow, the amorphous carbon structure of CNF was converted to a hollow sp2 graphitic carbon structure catalyzed by dispersed Au particles. The graphitic carbon structure, however, collapsed in the center at a higher applied potential of 60 A due to excessive current flow and induced Joule heating. The direct observation of graphene synthesis thru in-situ TEM is important for revealing the solid phase interaction of Au and carbon atoms.
format	Article
author	Rosmi, Mohamad Saufi Yaakob, Yazid Mohd. Yusop, Mohd. Zamri Md. Isa, Illyas Sidik, Siti Munirah Abu Bakar, Suriani Masaki, Tanemura
author_facet	Rosmi, Mohamad Saufi Yaakob, Yazid Mohd. Yusop, Mohd. Zamri Md. Isa, Illyas Sidik, Siti Munirah Abu Bakar, Suriani Masaki, Tanemura
author_sort	Rosmi, Mohamad Saufi
title	Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect
title_short	Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect
title_full	Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect
title_fullStr	Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect
title_full_unstemmed	Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect
title_sort	investigating the structural transformation of individual au-incorporated carbon nanofiber interconnect
publisher	Microscopy Society of Malaysia
publishDate	2022
url	http://eprints.utm.my/id/eprint/102905/ https://malaysianjournalofmicroscopy.org/ojs/index.php/mjm/article/view/621
_version_	1778160799724863488
score	13.211869

Investigating the structural transformation of individual Au-incorporated carbon nanofiber interconnect

Similar Items