Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes

Mostrar todas las versiones(3)

The effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation of carbon nanotubes (CNTs) films on the chemical and electronic properties of the material is reported. The CNTs were grown by the chemical vapor deposition technique (CVD) on silicon TiN coated substrates previously decorated with Ni pa...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Acua, J.J.S., Escobar, M., Goyanes, S.N., Candal, R.J., Zanatta, A.R., Alvarez, F.
Formato:	Artículo publishedVersion
Publicado:	2011
Materias:	Chemical vapor Coated substrates Ex situ Experimental conditions Experimental data FEG-SEM Field emission measurements Field emission property Field-effect Fowler-Nordheim In-situ Ion beam irradiation Morphological changes NI particles Oxygen concentrations Quinone groups Structural characteristics TiN coating XPS data Carbon nanotubes Chemical vapor deposition Electron emission Electronic properties Field emission Ion beams Ions Oxygen Photoelectron spectroscopy Scanning electron microscopy Titanium nitride X ray photoelectron spectroscopy Irradiation
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00218979_v109_n11_p_Acua https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00218979_v109_n11_p_Acua_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_00218979_v109_n11_p_Acua_oai
record_format	dspace
spelling	I28-R145-paper_00218979_v109_n11_p_Acua_oai2024-08-16 Acua, J.J.S. Escobar, M. Goyanes, S.N. Candal, R.J. Zanatta, A.R. Alvarez, F. 2011 The effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation of carbon nanotubes (CNTs) films on the chemical and electronic properties of the material is reported. The CNTs were grown by the chemical vapor deposition technique (CVD) on silicon TiN coated substrates previously decorated with Ni particles. The Ni decoration and TiN coating were successively deposited by ion-beam assisted deposition (IBAD) and afterwards the nanotubes were grown. The whole deposition procedure was performed in situ as well as the study of the effect of ion-beam irradiation on the CNTs by x-ray photoelectron spectroscopy (XPS). Raman scattering, field-effect emission gun scanning electron microscopy (FEG-SEM), and field emission (FE) measurements were performed ex situ. The experimental data show that: (a) the presence of either H2+ or N2 + ions in the irradiation beam determines the oxygen concentration remaining in the samples as well as the studied structural characteristics; (b) due to the experimental conditions used in the study, no morphological changes have been observed after irradiation of the CNTs; (c) the FE experiments indicate that the electron emission from the CNTs follows the Fowler-Nordheim model, and it is dependent on the oxygen concentration remaining in the samples; and (d) in association with FE results, the XPS data suggest that the formation of terminal quinone groups decreases the CNTs work function of the material. © 2011 American Institute of Physics. Fil:Escobar, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Candal, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alvarez, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00218979_v109_n11_p_Acua info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar J Appl Phys 2011;109(11) Chemical vapor Coated substrates Ex situ Experimental conditions Experimental data FEG-SEM Field emission measurements Field emission property Field-effect Fowler-Nordheim In-situ Ion beam irradiation Morphological changes NI particles Oxygen concentrations Quinone groups Structural characteristics TiN coating XPS data Carbon nanotubes Chemical vapor deposition Electron emission Electronic properties Field emission Ion beams Ions Oxygen Photoelectron spectroscopy Scanning electron microscopy Titanium nitride X ray photoelectron spectroscopy Irradiation Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00218979_v109_n11_p_Acua_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	Chemical vapor Coated substrates Ex situ Experimental conditions Experimental data FEG-SEM Field emission measurements Field emission property Field-effect Fowler-Nordheim In-situ Ion beam irradiation Morphological changes NI particles Oxygen concentrations Quinone groups Structural characteristics TiN coating XPS data Carbon nanotubes Chemical vapor deposition Electron emission Electronic properties Field emission Ion beams Ions Oxygen Photoelectron spectroscopy Scanning electron microscopy Titanium nitride X ray photoelectron spectroscopy Irradiation
spellingShingle	Chemical vapor Coated substrates Ex situ Experimental conditions Experimental data FEG-SEM Field emission measurements Field emission property Field-effect Fowler-Nordheim In-situ Ion beam irradiation Morphological changes NI particles Oxygen concentrations Quinone groups Structural characteristics TiN coating XPS data Carbon nanotubes Chemical vapor deposition Electron emission Electronic properties Field emission Ion beams Ions Oxygen Photoelectron spectroscopy Scanning electron microscopy Titanium nitride X ray photoelectron spectroscopy Irradiation Acua, J.J.S. Escobar, M. Goyanes, S.N. Candal, R.J. Zanatta, A.R. Alvarez, F. Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes
topic_facet	Chemical vapor Coated substrates Ex situ Experimental conditions Experimental data FEG-SEM Field emission measurements Field emission property Field-effect Fowler-Nordheim In-situ Ion beam irradiation Morphological changes NI particles Oxygen concentrations Quinone groups Structural characteristics TiN coating XPS data Carbon nanotubes Chemical vapor deposition Electron emission Electronic properties Field emission Ion beams Ions Oxygen Photoelectron spectroscopy Scanning electron microscopy Titanium nitride X ray photoelectron spectroscopy Irradiation
description	The effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation of carbon nanotubes (CNTs) films on the chemical and electronic properties of the material is reported. The CNTs were grown by the chemical vapor deposition technique (CVD) on silicon TiN coated substrates previously decorated with Ni particles. The Ni decoration and TiN coating were successively deposited by ion-beam assisted deposition (IBAD) and afterwards the nanotubes were grown. The whole deposition procedure was performed in situ as well as the study of the effect of ion-beam irradiation on the CNTs by x-ray photoelectron spectroscopy (XPS). Raman scattering, field-effect emission gun scanning electron microscopy (FEG-SEM), and field emission (FE) measurements were performed ex situ. The experimental data show that: (a) the presence of either H2+ or N2 + ions in the irradiation beam determines the oxygen concentration remaining in the samples as well as the studied structural characteristics; (b) due to the experimental conditions used in the study, no morphological changes have been observed after irradiation of the CNTs; (c) the FE experiments indicate that the electron emission from the CNTs follows the Fowler-Nordheim model, and it is dependent on the oxygen concentration remaining in the samples; and (d) in association with FE results, the XPS data suggest that the formation of terminal quinone groups decreases the CNTs work function of the material. © 2011 American Institute of Physics.
format	Artículo Artículo publishedVersion
author	Acua, J.J.S. Escobar, M. Goyanes, S.N. Candal, R.J. Zanatta, A.R. Alvarez, F.
author_facet	Acua, J.J.S. Escobar, M. Goyanes, S.N. Candal, R.J. Zanatta, A.R. Alvarez, F.
author_sort	Acua, J.J.S.
title	Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes
title_short	Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes
title_full	Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes
title_fullStr	Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes
title_full_unstemmed	Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes
title_sort	effect of o2+, h2+ o 2+, and n2+ o2 + ion-beam irradiation on the field emission properties of carbon nanotubes
publishDate	2011
url	http://hdl.handle.net/20.500.12110/paper_00218979_v109_n11_p_Acua https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00218979_v109_n11_p_Acua_oai
work_keys_str_mv	AT acuajjs effectofo2h2o2andn2o2ionbeamirradiationonthefieldemissionpropertiesofcarbonnanotubes AT escobarm effectofo2h2o2andn2o2ionbeamirradiationonthefieldemissionpropertiesofcarbonnanotubes AT goyanessn effectofo2h2o2andn2o2ionbeamirradiationonthefieldemissionpropertiesofcarbonnanotubes AT candalrj effectofo2h2o2andn2o2ionbeamirradiationonthefieldemissionpropertiesofcarbonnanotubes AT zanattaar effectofo2h2o2andn2o2ionbeamirradiationonthefieldemissionpropertiesofcarbonnanotubes AT alvarezf effectofo2h2o2andn2o2ionbeamirradiationonthefieldemissionpropertiesofcarbonnanotubes
_version_	1809356868827480064

Effect of O2+, H2+ O 2+, and N2+ O2 + ion-beam irradiation on the field emission properties of carbon nanotubes

Ejemplares similares