ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor

A. T.-Huerta, G. F. Perez-Sanchez, F. Chavez, P. Zaca-Moran, A. Morales-Acevedo, Ramon Peña Sierra, O. Goiz, D. Cortes-Salinas

Resultado de la investigación: Contribución a una conferenciaArtículo

1 Cita (Scopus)

Resumen

Zinc oxide nanowires (ZnO-NWs) were synthesized through two simple processes on silicon substrates. The first step was to obtain the zinc nanowires (Zn-NWs) by close spaced sublimation (CSS) on a quartz substrate. The second step was the transformation of Zn-NWs to ZnO-NWs by a simple thermal annealing in air environment. In the synthesis process a zinc pellet source was used as the source material, where the temperatures of the source, the temperature of the substrate, and the growth time were fixed at 350°C, 325°C, and 5 minutes respectively, using a nitrogen environment at atmospheric pressure conditions. Afterwards, the as-prepared Zn-NWs sample was heated at 400°C for 30 minutes in open tube conditions. In addition, a conductimetric gas sensor was fabricated using the annealed Zn-NWs based film. The sensor was tested to hydrogen at moderate temperatures (200-400°C) for several concentrations (95-1492 ppm). The results revealed that the ZnO-NWs have a high response to hydrogen at high temperatures and high concentrations. The response and recovery times depend on the hydrogen concentration. The response time for almost all conditions is of the order of 2 minutes. These results are very promising for the development of hydrogen solid state gas sensors based on zinc oxide nanowires.

Idioma originalInglés
Páginas488-492
Número de páginas5
DOI
EstadoPublicada - 1 ene 2013
Evento2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013 - Mexico City, México
Duración: 30 sep 20134 oct 2013

Otros

Otros2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013
PaísMéxico
CiudadMexico City
Período30/09/134/10/13

Huella dactilar

Sublimation
Chemical sensors
Nanowires
Hydrogen
Zinc oxide
Zinc
Substrates
Solid-state sensors
Temperature
Atmospheric pressure
Quartz
Annealing
Nitrogen
Recovery
Silicon
Sensors
Air

Citar esto

T.-Huerta, A., Perez-Sanchez, G. F., Chavez, F., Zaca-Moran, P., Morales-Acevedo, A., Peña Sierra, R., ... Cortes-Salinas, D. (2013). ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor. 488-492. Papel presentado en 2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013, Mexico City, México. https://doi.org/10.1109/ICEEE.2013.6676025
T.-Huerta, A. ; Perez-Sanchez, G. F. ; Chavez, F. ; Zaca-Moran, P. ; Morales-Acevedo, A. ; Peña Sierra, Ramon ; Goiz, O. ; Cortes-Salinas, D. / ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor. Papel presentado en 2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013, Mexico City, México.5 p.
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title = "ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor",
abstract = "Zinc oxide nanowires (ZnO-NWs) were synthesized through two simple processes on silicon substrates. The first step was to obtain the zinc nanowires (Zn-NWs) by close spaced sublimation (CSS) on a quartz substrate. The second step was the transformation of Zn-NWs to ZnO-NWs by a simple thermal annealing in air environment. In the synthesis process a zinc pellet source was used as the source material, where the temperatures of the source, the temperature of the substrate, and the growth time were fixed at 350°C, 325°C, and 5 minutes respectively, using a nitrogen environment at atmospheric pressure conditions. Afterwards, the as-prepared Zn-NWs sample was heated at 400°C for 30 minutes in open tube conditions. In addition, a conductimetric gas sensor was fabricated using the annealed Zn-NWs based film. The sensor was tested to hydrogen at moderate temperatures (200-400°C) for several concentrations (95-1492 ppm). The results revealed that the ZnO-NWs have a high response to hydrogen at high temperatures and high concentrations. The response and recovery times depend on the hydrogen concentration. The response time for almost all conditions is of the order of 2 minutes. These results are very promising for the development of hydrogen solid state gas sensors based on zinc oxide nanowires.",
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author = "A. T.-Huerta and Perez-Sanchez, {G. F.} and F. Chavez and P. Zaca-Moran and A. Morales-Acevedo and {Pe{\~n}a Sierra}, Ramon and O. Goiz and D. Cortes-Salinas",
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T.-Huerta, A, Perez-Sanchez, GF, Chavez, F, Zaca-Moran, P, Morales-Acevedo, A, Peña Sierra, R, Goiz, O & Cortes-Salinas, D 2013, 'ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor', Papel presentado en 2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013, Mexico City, México, 30/09/13 - 4/10/13 pp. 488-492. https://doi.org/10.1109/ICEEE.2013.6676025

ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor. / T.-Huerta, A.; Perez-Sanchez, G. F.; Chavez, F.; Zaca-Moran, P.; Morales-Acevedo, A.; Peña Sierra, Ramon; Goiz, O.; Cortes-Salinas, D.

2013. 488-492 Papel presentado en 2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013, Mexico City, México.

Resultado de la investigación: Contribución a una conferenciaArtículo

TY - CONF

T1 - ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor

AU - T.-Huerta, A.

AU - Perez-Sanchez, G. F.

AU - Chavez, F.

AU - Zaca-Moran, P.

AU - Morales-Acevedo, A.

AU - Peña Sierra, Ramon

AU - Goiz, O.

AU - Cortes-Salinas, D.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Zinc oxide nanowires (ZnO-NWs) were synthesized through two simple processes on silicon substrates. The first step was to obtain the zinc nanowires (Zn-NWs) by close spaced sublimation (CSS) on a quartz substrate. The second step was the transformation of Zn-NWs to ZnO-NWs by a simple thermal annealing in air environment. In the synthesis process a zinc pellet source was used as the source material, where the temperatures of the source, the temperature of the substrate, and the growth time were fixed at 350°C, 325°C, and 5 minutes respectively, using a nitrogen environment at atmospheric pressure conditions. Afterwards, the as-prepared Zn-NWs sample was heated at 400°C for 30 minutes in open tube conditions. In addition, a conductimetric gas sensor was fabricated using the annealed Zn-NWs based film. The sensor was tested to hydrogen at moderate temperatures (200-400°C) for several concentrations (95-1492 ppm). The results revealed that the ZnO-NWs have a high response to hydrogen at high temperatures and high concentrations. The response and recovery times depend on the hydrogen concentration. The response time for almost all conditions is of the order of 2 minutes. These results are very promising for the development of hydrogen solid state gas sensors based on zinc oxide nanowires.

AB - Zinc oxide nanowires (ZnO-NWs) were synthesized through two simple processes on silicon substrates. The first step was to obtain the zinc nanowires (Zn-NWs) by close spaced sublimation (CSS) on a quartz substrate. The second step was the transformation of Zn-NWs to ZnO-NWs by a simple thermal annealing in air environment. In the synthesis process a zinc pellet source was used as the source material, where the temperatures of the source, the temperature of the substrate, and the growth time were fixed at 350°C, 325°C, and 5 minutes respectively, using a nitrogen environment at atmospheric pressure conditions. Afterwards, the as-prepared Zn-NWs sample was heated at 400°C for 30 minutes in open tube conditions. In addition, a conductimetric gas sensor was fabricated using the annealed Zn-NWs based film. The sensor was tested to hydrogen at moderate temperatures (200-400°C) for several concentrations (95-1492 ppm). The results revealed that the ZnO-NWs have a high response to hydrogen at high temperatures and high concentrations. The response and recovery times depend on the hydrogen concentration. The response time for almost all conditions is of the order of 2 minutes. These results are very promising for the development of hydrogen solid state gas sensors based on zinc oxide nanowires.

KW - Close Spaced Sublimation (CSS)

KW - Nanowires

KW - Znc Oxide

UR - http://www.scopus.com/inward/record.url?scp=84899103294&partnerID=8YFLogxK

U2 - 10.1109/ICEEE.2013.6676025

DO - 10.1109/ICEEE.2013.6676025

M3 - Artículo

AN - SCOPUS:84899103294

SP - 488

EP - 492

ER -

T.-Huerta A, Perez-Sanchez GF, Chavez F, Zaca-Moran P, Morales-Acevedo A, Peña Sierra R y otros. ZnO nanowires synthesized by CSS and their application as a hydrogen gas sensor. 2013. Papel presentado en 2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2013, Mexico City, México. https://doi.org/10.1109/ICEEE.2013.6676025