Unveiling the Role of CNTs on the Phase Formation of 1D Ferroelectrics

Handle URI:
http://hdl.handle.net/10754/555659
Title:
Unveiling the Role of CNTs on the Phase Formation of 1D Ferroelectrics
Authors:
Mahajan, Amit; Reaney, I. M.; Da Costa, Pedro M. F. J. ( 0000-0002-1993-6701 ) ; Kingon, Angus I.; Kónya, Zoltán; Kukovecz, Akos; Vilarinho, P. M.
Abstract:
Carbon nanotubes (CNTs) have the potential to act as templates or bottom electrodes for three dimension (3D) capacitor arrays, which utilise one dimension (1D) ferroelectric nanostructures to increase memory size and density. However, growing a ferroelectric on the surface of CNTs is non-trivial. Here, we demonstrate that multi-walled (MW) CNTs decrease the time and temperature for formation of lead zirconium titanate Pb(Zr1-xTix)O3 (PZT) by ~100 ºC commensurate with a decrease in activation energy from 68±15 kJ/mol to 27±2 kJ/mol. As a consequence, monophasic PZT was obtained at 575 ºC for MWCNTs/PZT whereas for pure PZT traces of pyrochlore were still present at 650 ºC, where PZT phase formed due to homogeneous nucleation. The piezoelectric nature of MWCNT/PZT synthesised at 500 ºC for 1 h was proved. Although further work is required to prove the concept of 3D capacitor arrays, our result suggests that it is feasible to utilise MWCNTs as templates/electrodes for the formation of 1D PZT nano ferroelectrics.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Unveiling the Role of CNTs on the Phase Formation of 1D Ferroelectrics 2015:150521115352001 Langmuir
Publisher:
American Chemical Society (ACS)
Journal:
Langmuir
Issue Date:
21-May-2015
DOI:
10.1021/acs.langmuir.5b00866
Type:
Article
ISSN:
0743-7463; 1520-5827
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.5b00866
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMahajan, Amiten
dc.contributor.authorReaney, I. M.en
dc.contributor.authorDa Costa, Pedro M. F. J.en
dc.contributor.authorKingon, Angus I.en
dc.contributor.authorKónya, Zoltánen
dc.contributor.authorKukovecz, Akosen
dc.contributor.authorVilarinho, P. M.en
dc.date.accessioned2015-05-25T08:13:36Zen
dc.date.available2015-05-25T08:13:36Zen
dc.date.issued2015-05-21en
dc.identifier.citationUnveiling the Role of CNTs on the Phase Formation of 1D Ferroelectrics 2015:150521115352001 Langmuiren
dc.identifier.issn0743-7463en
dc.identifier.issn1520-5827en
dc.identifier.doi10.1021/acs.langmuir.5b00866en
dc.identifier.urihttp://hdl.handle.net/10754/555659en
dc.description.abstractCarbon nanotubes (CNTs) have the potential to act as templates or bottom electrodes for three dimension (3D) capacitor arrays, which utilise one dimension (1D) ferroelectric nanostructures to increase memory size and density. However, growing a ferroelectric on the surface of CNTs is non-trivial. Here, we demonstrate that multi-walled (MW) CNTs decrease the time and temperature for formation of lead zirconium titanate Pb(Zr1-xTix)O3 (PZT) by ~100 ºC commensurate with a decrease in activation energy from 68±15 kJ/mol to 27±2 kJ/mol. As a consequence, monophasic PZT was obtained at 575 ºC for MWCNTs/PZT whereas for pure PZT traces of pyrochlore were still present at 650 ºC, where PZT phase formed due to homogeneous nucleation. The piezoelectric nature of MWCNT/PZT synthesised at 500 ºC for 1 h was proved. Although further work is required to prove the concept of 3D capacitor arrays, our result suggests that it is feasible to utilise MWCNTs as templates/electrodes for the formation of 1D PZT nano ferroelectrics.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.langmuir.5b00866en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.5b00866.en
dc.subjectCarbon nanotubesen
dc.subjectnanostructuresen
dc.subjectone dimensionen
dc.subjectferroelectricsen
dc.subjectead zirconate titanateen
dc.subjectsol gelen
dc.subjectkineticsen
dc.subjectactivation energyen
dc.titleUnveiling the Role of CNTs on the Phase Formation of 1D Ferroelectricsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalLangmuiren
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Materials and Ceramics Engineering, CICECO – Aveiro Materials Institute, University of Aveiro, 3810-193 Aveiro, Portugalen
dc.contributor.institutionDepartment of Materials Science and Engineering, Sir Robert Hadfield Building, Mappin Street, Sheffield, S1 3JD, United Kingdomen
dc.contributor.institutionDivision of Engineering, Brown University, Providen ce, Rhode Island 02912, USAen
dc.contributor.institutionDepartment of Applied and Environmental Chemistry, Faculty of Sciences, University of Szeged, H-6720 Szeged, Hungaryen
dc.contributor.institutionMTA-SZTE Reaction Kinetics and Surface Chemistry Re search Group, 6720 Szeged, Rerrich Béla tér 1, Hungaryen
dc.contributor.institutionMTA-SZTE “Lendület” Porous Nanocomposites Research Group, 6720 Szeged, Rerrich Béla tér 1, Hungaryen
kaust.authorDa Costa, Pedro M. F. J.en
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