Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity

Carbon nanotube (CNT) nanobundles are widely used in nanoscale imaging, fabrication, and electrochemical and biological sensing. The diameter of CNT nanobundles should be controlled precisely, because it is an important factor in determining electrode performance. Here, we fabricated CNT nanobundles...

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Detalles Bibliográficos
Autores principales: Shin, Jung Hwal, Kim, Kanghyun, An, Taechang, Choi, WooSeok, Lim, Geunbae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5007225/
https://www.ncbi.nlm.nih.gov/pubmed/27581602
http://dx.doi.org/10.1186/s11671-016-1600-9
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author Shin, Jung Hwal
Kim, Kanghyun
An, Taechang
Choi, WooSeok
Lim, Geunbae
author_facet Shin, Jung Hwal
Kim, Kanghyun
An, Taechang
Choi, WooSeok
Lim, Geunbae
author_sort Shin, Jung Hwal
collection PubMed
description Carbon nanotube (CNT) nanobundles are widely used in nanoscale imaging, fabrication, and electrochemical and biological sensing. The diameter of CNT nanobundles should be controlled precisely, because it is an important factor in determining electrode performance. Here, we fabricated CNT nanobundles on tungsten tips using dielectrophoresis (DEP) force and controlled their diameters by varying the withdrawal velocity of the tungsten tips. Withdrawal velocity pulling away from the liquid–air interface could be an important, reliable parameter to control the diameter of CNT nanobundles. The withdrawal velocity was controlled automatically and precisely with a one-dimensional motorized stage. The effect of the withdrawal velocity on the diameter of CNT nanobundles was analyzed theoretically and compared with the experimental results. Based on the attachment efficiency, the withdrawal velocity is inversely proportional to the diameter of the CNT nanobundles; this has been demonstrated experimentally. Control of the withdrawal velocity will play an important role in fabricating CNT nanobundles using DEP phenomena.
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spelling pubmed-50072252016-09-22 Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity Shin, Jung Hwal Kim, Kanghyun An, Taechang Choi, WooSeok Lim, Geunbae Nanoscale Res Lett Nano Express Carbon nanotube (CNT) nanobundles are widely used in nanoscale imaging, fabrication, and electrochemical and biological sensing. The diameter of CNT nanobundles should be controlled precisely, because it is an important factor in determining electrode performance. Here, we fabricated CNT nanobundles on tungsten tips using dielectrophoresis (DEP) force and controlled their diameters by varying the withdrawal velocity of the tungsten tips. Withdrawal velocity pulling away from the liquid–air interface could be an important, reliable parameter to control the diameter of CNT nanobundles. The withdrawal velocity was controlled automatically and precisely with a one-dimensional motorized stage. The effect of the withdrawal velocity on the diameter of CNT nanobundles was analyzed theoretically and compared with the experimental results. Based on the attachment efficiency, the withdrawal velocity is inversely proportional to the diameter of the CNT nanobundles; this has been demonstrated experimentally. Control of the withdrawal velocity will play an important role in fabricating CNT nanobundles using DEP phenomena. Springer US 2016-09-01 /pmc/articles/PMC5007225/ /pubmed/27581602 http://dx.doi.org/10.1186/s11671-016-1600-9 Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Shin, Jung Hwal
Kim, Kanghyun
An, Taechang
Choi, WooSeok
Lim, Geunbae
Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity
title Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity
title_full Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity
title_fullStr Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity
title_full_unstemmed Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity
title_short Reliable Diameter Control of Carbon Nanotube Nanobundles Using Withdrawal Velocity
title_sort reliable diameter control of carbon nanotube nanobundles using withdrawal velocity
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5007225/
https://www.ncbi.nlm.nih.gov/pubmed/27581602
http://dx.doi.org/10.1186/s11671-016-1600-9
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