High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition

Vertically, carbon nanotube (CNT) arrays were successfully fabricated on hexagon patterned Si substrates through radio frequency plasma-enhanced chemical vapor deposition using gas mixtures of acetylene (C(2)H(2)) and hydrogen (H(2)) with Fe/Al(2)O(3) catalysts. The CNTs were found to be graphitized...

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Detalles Bibliográficos
Autores principales: Cui, Linfan, Chen, Jiangtao, Yang, Bingjun, Jiao, Tifeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678139/
https://www.ncbi.nlm.nih.gov/pubmed/26666912
http://dx.doi.org/10.1186/s11671-015-1192-9
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author Cui, Linfan
Chen, Jiangtao
Yang, Bingjun
Jiao, Tifeng
author_facet Cui, Linfan
Chen, Jiangtao
Yang, Bingjun
Jiao, Tifeng
author_sort Cui, Linfan
collection PubMed
description Vertically, carbon nanotube (CNT) arrays were successfully fabricated on hexagon patterned Si substrates through radio frequency plasma-enhanced chemical vapor deposition using gas mixtures of acetylene (C(2)H(2)) and hydrogen (H(2)) with Fe/Al(2)O(3) catalysts. The CNTs were found to be graphitized with multi-walled structures. Different H(2)/C(2)H(2) gas flow rate ratio was used to investigate the effect on CNT growth, and the field emission properties were optimized. The CNT emitters exhibited excellent field emission performance (the turn-on and threshold fields were 2.1 and 2.4 V/μm, respectively). The largest emission current could reach 70 mA/cm(2). The emission current was stable, and no obvious deterioration was observed during the long-term stability test of 50 h. The results were relevant for practical applications based on CNTs.
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spelling pubmed-46781392015-12-22 High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition Cui, Linfan Chen, Jiangtao Yang, Bingjun Jiao, Tifeng Nanoscale Res Lett Nano Express Vertically, carbon nanotube (CNT) arrays were successfully fabricated on hexagon patterned Si substrates through radio frequency plasma-enhanced chemical vapor deposition using gas mixtures of acetylene (C(2)H(2)) and hydrogen (H(2)) with Fe/Al(2)O(3) catalysts. The CNTs were found to be graphitized with multi-walled structures. Different H(2)/C(2)H(2) gas flow rate ratio was used to investigate the effect on CNT growth, and the field emission properties were optimized. The CNT emitters exhibited excellent field emission performance (the turn-on and threshold fields were 2.1 and 2.4 V/μm, respectively). The largest emission current could reach 70 mA/cm(2). The emission current was stable, and no obvious deterioration was observed during the long-term stability test of 50 h. The results were relevant for practical applications based on CNTs. Springer US 2015-12-15 /pmc/articles/PMC4678139/ /pubmed/26666912 http://dx.doi.org/10.1186/s11671-015-1192-9 Text en © Cui et al. 2015 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
Cui, Linfan
Chen, Jiangtao
Yang, Bingjun
Jiao, Tifeng
High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition
title High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition
title_full High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition
title_fullStr High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition
title_full_unstemmed High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition
title_short High Current Emission from Patterned Aligned Carbon Nanotubes Fabricated by Plasma-Enhanced Chemical Vapor Deposition
title_sort high current emission from patterned aligned carbon nanotubes fabricated by plasma-enhanced chemical vapor deposition
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678139/
https://www.ncbi.nlm.nih.gov/pubmed/26666912
http://dx.doi.org/10.1186/s11671-015-1192-9
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AT yangbingjun highcurrentemissionfrompatternedalignedcarbonnanotubesfabricatedbyplasmaenhancedchemicalvapordeposition
AT jiaotifeng highcurrentemissionfrompatternedalignedcarbonnanotubesfabricatedbyplasmaenhancedchemicalvapordeposition

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