Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts

E. Comini; G. Faglia; G. Sberveglieri; Zhengwei Pan; Zhong L. Wang

doi:10.1063/1.1504867

Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts

E. Comini^*
, G. Faglia
, G. Sberveglieri
, Zhengwei Pan
, Zhong L. Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1491 Scopus citations

Abstract

Gas sensors have been fabricated using the single-crystalline SnO ₂ nanobelts. Electrical characterization showed that the contacts were ohmic and the nanobelts were sensitive to environmental polluting species like CO and NO₂, as well as to ethanol for breath analyzers and food control applications. The sensor response, defined as the relative variation in conductance due to the introduction of the gas, is 4160% for 250 ppm of ethanol and -1550% for 0.5 ppm NO₂ at 400°C. The results demonstrate the potential of fabricating nanosized sensors using the integrity of a single nanobelt with a sensitivity at the level of a few ppb.

Original language	English
Pages (from-to)	1869-1871
Number of pages	3
Journal	Applied Physics Letters
Volume	81
Issue number	10
DOIs	https://doi.org/10.1063/1.1504867
State	Published - 2 Sep 2002
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1504867

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title = "Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts",

abstract = "Gas sensors have been fabricated using the single-crystalline SnO 2 nanobelts. Electrical characterization showed that the contacts were ohmic and the nanobelts were sensitive to environmental polluting species like CO and NO2, as well as to ethanol for breath analyzers and food control applications. The sensor response, defined as the relative variation in conductance due to the introduction of the gas, is 4160\% for 250 ppm of ethanol and -1550\% for 0.5 ppm NO2 at 400°C. The results demonstrate the potential of fabricating nanosized sensors using the integrity of a single nanobelt with a sensitivity at the level of a few ppb.",

author = "E. Comini and G. Faglia and G. Sberveglieri and Zhengwei Pan and Wang, \{Zhong L.\}",

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doi = "10.1063/1.1504867",

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T1 - Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts

AU - Comini, E.

AU - Faglia, G.

AU - Sberveglieri, G.

AU - Pan, Zhengwei

AU - Wang, Zhong L.

PY - 2002/9/2

Y1 - 2002/9/2

N2 - Gas sensors have been fabricated using the single-crystalline SnO 2 nanobelts. Electrical characterization showed that the contacts were ohmic and the nanobelts were sensitive to environmental polluting species like CO and NO2, as well as to ethanol for breath analyzers and food control applications. The sensor response, defined as the relative variation in conductance due to the introduction of the gas, is 4160% for 250 ppm of ethanol and -1550% for 0.5 ppm NO2 at 400°C. The results demonstrate the potential of fabricating nanosized sensors using the integrity of a single nanobelt with a sensitivity at the level of a few ppb.

AB - Gas sensors have been fabricated using the single-crystalline SnO 2 nanobelts. Electrical characterization showed that the contacts were ohmic and the nanobelts were sensitive to environmental polluting species like CO and NO2, as well as to ethanol for breath analyzers and food control applications. The sensor response, defined as the relative variation in conductance due to the introduction of the gas, is 4160% for 250 ppm of ethanol and -1550% for 0.5 ppm NO2 at 400°C. The results demonstrate the potential of fabricating nanosized sensors using the integrity of a single nanobelt with a sensitivity at the level of a few ppb.

UR - https://www.scopus.com/pages/publications/79956041295

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DO - 10.1063/1.1504867

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EP - 1871

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

ER -

Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts

Abstract

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