Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes

For the first time, zinc oxide (ZnO) nanoflowers on ZnO nanorods were produced on carbon nanotubes (CNTs) synthesised from waste cooking palm oil precursor. First, CNTs were grown using a thermal chemical vapour deposition method. Next, ZnO nanostructures were deposited using the sonicated sol-gel i...

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Published in:Materials Letters
Main Author: Suriani A.B.; Safitri R.N.; Mohamed A.; Alfarisa S.; Isa I.M.; Kamari A.; Hashim N.; Ahmad M.K.; Malek M.F.; Rusop M.
Format: Article
Language:English
Published: Elsevier 2015
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924726902&doi=10.1016%2fj.matlet.2015.02.115&partnerID=40&md5=42b71f1edd9cb65068ba09ba920625a2
id 2-s2.0-84924726902
spelling 2-s2.0-84924726902
Suriani A.B.; Safitri R.N.; Mohamed A.; Alfarisa S.; Isa I.M.; Kamari A.; Hashim N.; Ahmad M.K.; Malek M.F.; Rusop M.
Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
2015
Materials Letters
149

10.1016/j.matlet.2015.02.115
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924726902&doi=10.1016%2fj.matlet.2015.02.115&partnerID=40&md5=42b71f1edd9cb65068ba09ba920625a2
For the first time, zinc oxide (ZnO) nanoflowers on ZnO nanorods were produced on carbon nanotubes (CNTs) synthesised from waste cooking palm oil precursor. First, CNTs were grown using a thermal chemical vapour deposition method. Next, ZnO nanostructures were deposited using the sonicated sol-gel immersion method and the prepared samples were characterised using electron microscopy, micro-Raman spectroscopy and X-ray diffraction. The field electron emission properties of the samples indicated that the ZnO nanoflowers grown on the CNTs had better emission performances than the pristine aligned ZnO nanorods. The resulting CNTs/ZnO nanocomposite had reasonable turn-on and threshold fields of 4.6 and 6.7 V/μm, which corresponded with the electric fields required to create current densities of 1.0 μA/cm2 and 0.1 mA/cm 2, respectively. This study shows the important roles of CNTs in ZnO nanoflowers growth and the abilities of CNTs to enhance ZnO emission properties. © 2015 Elsevier B.V.
Elsevier
0167577X
English
Article

author Suriani A.B.; Safitri R.N.; Mohamed A.; Alfarisa S.; Isa I.M.; Kamari A.; Hashim N.; Ahmad M.K.; Malek M.F.; Rusop M.
spellingShingle Suriani A.B.; Safitri R.N.; Mohamed A.; Alfarisa S.; Isa I.M.; Kamari A.; Hashim N.; Ahmad M.K.; Malek M.F.; Rusop M.
Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
author_facet Suriani A.B.; Safitri R.N.; Mohamed A.; Alfarisa S.; Isa I.M.; Kamari A.; Hashim N.; Ahmad M.K.; Malek M.F.; Rusop M.
author_sort Suriani A.B.; Safitri R.N.; Mohamed A.; Alfarisa S.; Isa I.M.; Kamari A.; Hashim N.; Ahmad M.K.; Malek M.F.; Rusop M.
title Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
title_short Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
title_full Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
title_fullStr Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
title_full_unstemmed Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
title_sort Enhanced field electron emission of flower-like zinc oxide on zinc oxide nanorods grown on carbon nanotubes
publishDate 2015
container_title Materials Letters
container_volume 149
container_issue
doi_str_mv 10.1016/j.matlet.2015.02.115
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924726902&doi=10.1016%2fj.matlet.2015.02.115&partnerID=40&md5=42b71f1edd9cb65068ba09ba920625a2
description For the first time, zinc oxide (ZnO) nanoflowers on ZnO nanorods were produced on carbon nanotubes (CNTs) synthesised from waste cooking palm oil precursor. First, CNTs were grown using a thermal chemical vapour deposition method. Next, ZnO nanostructures were deposited using the sonicated sol-gel immersion method and the prepared samples were characterised using electron microscopy, micro-Raman spectroscopy and X-ray diffraction. The field electron emission properties of the samples indicated that the ZnO nanoflowers grown on the CNTs had better emission performances than the pristine aligned ZnO nanorods. The resulting CNTs/ZnO nanocomposite had reasonable turn-on and threshold fields of 4.6 and 6.7 V/μm, which corresponded with the electric fields required to create current densities of 1.0 μA/cm2 and 0.1 mA/cm 2, respectively. This study shows the important roles of CNTs in ZnO nanoflowers growth and the abilities of CNTs to enhance ZnO emission properties. © 2015 Elsevier B.V.
publisher Elsevier
issn 0167577X
language English
format Article
accesstype
record_format scopus
collection Scopus
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