Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures

Gas microsensors based on columnar zinc oxide structures (rods and needles) with different aspect ratios and wetting properties are developed via aerosol-assisted chemical vapor deposition. The correlation between their wetting properties and degree of humidity-interference in gas sensing is present...

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Main Authors: Stella Vallejos, Isabel Gràcia, Nadezda Pizúrová, Eduard Figueras, Jaromir Hubálek, Carles Cané
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/1/4/417
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author Stella Vallejos
Isabel Gràcia
Nadezda Pizúrová
Eduard Figueras
Jaromir Hubálek
Carles Cané
author_facet Stella Vallejos
Isabel Gràcia
Nadezda Pizúrová
Eduard Figueras
Jaromir Hubálek
Carles Cané
author_sort Stella Vallejos
collection DOAJ
description Gas microsensors based on columnar zinc oxide structures (rods and needles) with different aspect ratios and wetting properties are developed via aerosol-assisted chemical vapor deposition. The correlation between their wetting properties and degree of humidity-interference in gas sensing is presented. Gas sensing tests of these systems to hydrogen demonstrate noticeable lower humidity-interference for the columnar zinc oxide structures in the form of needles provided of higher hydrophobicity, as opposed to those in the form of rods, suggesting that a tuning of the wetting properties in metal oxides could allow for the humidity-resilient detection of gaseous analytes.
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spelling doaj.art-e73397b409c5470c96e0b9d0d4b7ec772022-12-22T03:05:03ZengMDPI AGProceedings2504-39002017-08-011441710.3390/proceedings1040417proceedings1040417Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO StructuresStella Vallejos0Isabel Gràcia1Nadezda Pizúrová2Eduard Figueras3Jaromir Hubálek4Carles Cané5Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Barcelona, SpainInstituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Barcelona, SpainInstitute of Physics of Materials, Academy of Sciences of Czech Republic, Žižkova 22, 61662 Brno, Czech RepublicInstituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Barcelona, SpainDepartment of Microelectronics, SIX Research Centre, Faculty of Electrical Engineering an Communication, Brno University of Technology, Technická 3058/10, 61600 Brno, Czech RepublicInstituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Barcelona, SpainGas microsensors based on columnar zinc oxide structures (rods and needles) with different aspect ratios and wetting properties are developed via aerosol-assisted chemical vapor deposition. The correlation between their wetting properties and degree of humidity-interference in gas sensing is presented. Gas sensing tests of these systems to hydrogen demonstrate noticeable lower humidity-interference for the columnar zinc oxide structures in the form of needles provided of higher hydrophobicity, as opposed to those in the form of rods, suggesting that a tuning of the wetting properties in metal oxides could allow for the humidity-resilient detection of gaseous analytes.https://www.mdpi.com/2504-3900/1/4/417gas sensorhumidityZnOAACVD
spellingShingle Stella Vallejos
Isabel Gràcia
Nadezda Pizúrová
Eduard Figueras
Jaromir Hubálek
Carles Cané
Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures
Proceedings
gas sensor
humidity
ZnO
AACVD
title Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures
title_full Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures
title_fullStr Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures
title_full_unstemmed Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures
title_short Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures
title_sort tuning of the humidity interference in gas sensitive columnar zno structures
topic gas sensor
humidity
ZnO
AACVD
url https://www.mdpi.com/2504-3900/1/4/417
work_keys_str_mv AT stellavallejos tuningofthehumidityinterferenceingassensitivecolumnarznostructures
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AT nadezdapizurova tuningofthehumidityinterferenceingassensitivecolumnarznostructures
AT eduardfigueras tuningofthehumidityinterferenceingassensitivecolumnarznostructures
AT jaromirhubalek tuningofthehumidityinterferenceingassensitivecolumnarznostructures
AT carlescane tuningofthehumidityinterferenceingassensitivecolumnarznostructures