dor_id: 4108274

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100.1.#.a: Muhl, S.; Aguilar Osorio, R.; Martínez Huitle, U.

524.#.#.a: Muhl, S., et al. (2017). Transparent conductive carbon nanotube films. Revista Mexicana de Física; Vol 63, No 5 Sept-Oct: 439-0. Recuperado de https://repositorio.unam.mx/contenidos/4108274

245.1.0.a: Transparent conductive carbon nanotube films

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Facultad de Ciencias, UNAM

264.#.0.c: 2017

264.#.1.c: 2017-01-01

653.#.#.a: Transparent conductive films; carbon nanotubes; carbon nanotube films; thin films

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2017-01-01, para un uso diferente consultar al responsable jurídico del repositorio por medio de rmf@ciencias.unam.mx

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001.#.#.#: oai:ojs.rmf.smf.mx:article/364

041.#.7.h: eng

520.3.#.a: This work presents the results of a study of the fabrication of multiwall carbon nanotubes (MWCNTs) by chemical vapour deposition (CVD), the purification and the develo±ent of transparent conductors films (TCFs) using these nanotubes. The as produced MWCNTs had some impurities due the CVD method including small amounts of the iron catalyst, amorphous carbon and hydrocarbon residues from the organic precursors. These impurities have been reported to be detrimental to both the electrical and optical properties of the TCFs. For this reason the purification of the nanotubes was studied using 3 different techniques. The three methods involved; A) selective oxidation in air of the MWCNTs followed by a hydrochloric acid solution etch to remove the iron, B) a selective oxidation using H2O2 followed by the hydrochloric acid etch treatment, and C) an oxidation-etch procedure using a mixture of H2O2 and hydrochloric acid. The best result results were obtained using the combined H2O2 and hydrochloric acid treatment. With this method MWCNTs were obtained with a purity of up to 94%. The purified MWCNTs were dispersed in solutions of different solvents without surfactant. Thin films of MWCNT were fabricated using a combined spray and spin coating technique, which produced a uniform deposit of controllable thickness. Either a transparent nitrocellulose-based varnish or acrylic was used to fix the film to the glass substrate. Both the optical transparency and the electrical square resistivity of the samples were measured by spectrophotometry and standard electrical techniques, respectively. Our results were similar to those of other groups in that the transparency was almost inversely proportional to the resistivity.

773.1.#.t: Revista Mexicana de Física; Vol 63, No 5 Sept-Oct (2017): 439-0

773.1.#.o: https://rmf.smf.mx/ojs/rmf/index

046.#.#.j: 2020-11-25 00:00:00.000000

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handle: 2b7a336aad74afcb

harvesting_date: 2020-09-23 00:00:00.0

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last_modified: 2020-11-27 00:00:00

license_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es

license_type: by-nc-nd

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Artículo

Transparent conductive carbon nanotube films

Muhl, S.; Aguilar Osorio, R.; Martínez Huitle, U.

Facultad de Ciencias, UNAM, publicado en Revista Mexicana de Física, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Entidad o dependencia
Facultad de Ciencias, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Muhl, S., et al. (2017). Transparent conductive carbon nanotube films. Revista Mexicana de Física; Vol 63, No 5 Sept-Oct: 439-0. Recuperado de https://repositorio.unam.mx/contenidos/4108274

Descripción del recurso

Autor(es)
Muhl, S.; Aguilar Osorio, R.; Martínez Huitle, U.
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
Transparent conductive carbon nanotube films
Fecha
2017-01-01
Resumen
This work presents the results of a study of the fabrication of multiwall carbon nanotubes (MWCNTs) by chemical vapour deposition (CVD), the purification and the develo±ent of transparent conductors films (TCFs) using these nanotubes. The as produced MWCNTs had some impurities due the CVD method including small amounts of the iron catalyst, amorphous carbon and hydrocarbon residues from the organic precursors. These impurities have been reported to be detrimental to both the electrical and optical properties of the TCFs. For this reason the purification of the nanotubes was studied using 3 different techniques. The three methods involved; A) selective oxidation in air of the MWCNTs followed by a hydrochloric acid solution etch to remove the iron, B) a selective oxidation using H2O2 followed by the hydrochloric acid etch treatment, and C) an oxidation-etch procedure using a mixture of H2O2 and hydrochloric acid. The best result results were obtained using the combined H2O2 and hydrochloric acid treatment. With this method MWCNTs were obtained with a purity of up to 94%. The purified MWCNTs were dispersed in solutions of different solvents without surfactant. Thin films of MWCNT were fabricated using a combined spray and spin coating technique, which produced a uniform deposit of controllable thickness. Either a transparent nitrocellulose-based varnish or acrylic was used to fix the film to the glass substrate. Both the optical transparency and the electrical square resistivity of the samples were measured by spectrophotometry and standard electrical techniques, respectively. Our results were similar to those of other groups in that the transparency was almost inversely proportional to the resistivity.
Tema
Transparent conductive films; carbon nanotubes; carbon nanotube films; thin films
Idioma
eng
ISSN
2683-2224 (digital); 0035-001X (impresa)

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