Effect of light activation on chemical gas sensors based on aligned nanowires

C. Baratto; V. Golovanova; G. Faglia; Thi Thanh Le Dang; H. Hakola; T. Niemi; N. Tkachenko; B. Nazarchurk; V. Golovanov

doi:10.1109/SENSORS47125.2020.9278839

Effect of light activation on chemical gas sensors based on aligned nanowires

C. Baratto, V. Golovanova, G. Faglia, Thi Thanh Le Dang, H. Hakola, T. Niemi, N. Tkachenko, B. Nazarchurk, V. Golovanov

Tutkimustuotos: Konferenssiartikkeli › Tieteellinen › vertaisarvioitu

Abstrakti

We investigated the effect of light activation on the gas sensors based on aligned nanowires (NWs). Due to almost monocrystalline perfection, NWs exhibit excellent chemical and thermal stability that makes them superior to polycrystalline thin-film sensors. Nanowires were aligned in two different ways: using Langmuir-Blodgett technique on a chip with electrodes being two microns apart, and using hydrothermal growth procedure to obtain inter-crossed nanowires. Our objective was to fabricate multiple aligned nanowire sensors that could mimic the advantages of a single NW sensors, but benefiting from a macroscopic alignment procedure that avoid the use of lithography for making contacts on a single nanowire. In the present study, we investigated the effects of illumination wavelength (sub and supra band-gap) on the sensing capabilities of the developed structures at room temperature. Light activated devices were found effective for NO2 sensing, while no interference to ethanol and relative humidity was observed.

Alkuperäiskieli	Englanti
Otsikko	IEEE Sensors, SENSORS 2020 - Conference Proceedings
Kustantaja	IEEE
Sivumäärä	4
ISBN (elektroninen)	9781728168012
ISBN (painettu)	9781728168029
DOI - pysyväislinkit	https://doi.org/10.1109/SENSORS47125.2020.9278839
Tila	Julkaistu - 2020
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	IEEE SENSORS - Virtual, Rotterdam, Alankomaat Kesto: 25 lokak. 2020 → 28 lokak. 2020

Julkaisusarja

Nimi	Proceedings of IEEE Sensors
Vuosikerta	2020-October
ISSN (painettu)	1930-0395
ISSN (elektroninen)	2168-9229

Conference

Conference	IEEE SENSORS
Maa/Alue	Alankomaat
Kaupunki	Virtual, Rotterdam
Ajanjakso	25/10/20 → 28/10/20

Rahoitus

This work was supported by NATO SPS MYP project NANEOS, Grant No. 985043. V.G. thanks Project HPC-EUROPA3 (INFRAIA-2016-1-730897) for the support.

Julkaisufoorumi-taso

Jufo-taso 1

!!ASJC Scopus subject areas

Electrical and Electronic Engineering

Pääsy asiakirjaan

10.1109/SENSORS47125.2020.9278839

Siteeraa tätä

Baratto, C., Golovanova, V., Faglia, G., Le Dang, T. T., Hakola, H., Niemi, T., Tkachenko, N., Nazarchurk, B., & Golovanov, V. (2020). Effect of light activation on chemical gas sensors based on aligned nanowires. teoksessa IEEE Sensors, SENSORS 2020 - Conference Proceedings Artikkeli 9278839 (Proceedings of IEEE Sensors; Vuosikerta 2020-October). IEEE. https://doi.org/10.1109/SENSORS47125.2020.9278839

@inproceedings{579870459d774400bf671ed68dce2aa6,

title = "Effect of light activation on chemical gas sensors based on aligned nanowires",

abstract = "We investigated the effect of light activation on the gas sensors based on aligned nanowires (NWs). Due to almost monocrystalline perfection, NWs exhibit excellent chemical and thermal stability that makes them superior to polycrystalline thin-film sensors. Nanowires were aligned in two different ways: using Langmuir-Blodgett technique on a chip with electrodes being two microns apart, and using hydrothermal growth procedure to obtain inter-crossed nanowires. Our objective was to fabricate multiple aligned nanowire sensors that could mimic the advantages of a single NW sensors, but benefiting from a macroscopic alignment procedure that avoid the use of lithography for making contacts on a single nanowire. In the present study, we investigated the effects of illumination wavelength (sub and supra band-gap) on the sensing capabilities of the developed structures at room temperature. Light activated devices were found effective for NO2 sensing, while no interference to ethanol and relative humidity was observed. ",

keywords = "aligned NWs, gas sensing, light activation, NO, ZnO",

author = "C. Baratto and V. Golovanova and G. Faglia and {Le Dang}, {Thi Thanh} and H. Hakola and T. Niemi and N. Tkachenko and B. Nazarchurk and V. Golovanov",

note = "JUFOID=57485 Funding Information: This work was supported by NATO SPS MYP project NANEOS, Grant No. 985043. V.G. thanks Project HPC-EUROPA3 (INFRAIA-2016-1-730897) for the support. Publisher Copyright: {\textcopyright} 2020 IEEE.; IEEE SENSORS ; Conference date: 25-10-2020 Through 28-10-2020",

year = "2020",

doi = "10.1109/SENSORS47125.2020.9278839",

language = "English",

isbn = "9781728168029",

series = "Proceedings of IEEE Sensors",

publisher = "IEEE",

booktitle = "IEEE Sensors, SENSORS 2020 - Conference Proceedings",

address = "United States",

}

Baratto, C, Golovanova, V, Faglia, G, Le Dang, TT, Hakola, H, Niemi, T, Tkachenko, N, Nazarchurk, B & Golovanov, V 2020, Effect of light activation on chemical gas sensors based on aligned nanowires. julkaisussa IEEE Sensors, SENSORS 2020 - Conference Proceedings., 9278839, Proceedings of IEEE Sensors, Vuosikerta 2020-October, IEEE, IEEE SENSORS, Virtual, Rotterdam, Alankomaat, 25/10/20. https://doi.org/10.1109/SENSORS47125.2020.9278839

TY - GEN

T1 - Effect of light activation on chemical gas sensors based on aligned nanowires

AU - Baratto, C.

AU - Golovanova, V.

AU - Faglia, G.

AU - Le Dang, Thi Thanh

AU - Hakola, H.

AU - Niemi, T.

AU - Tkachenko, N.

AU - Nazarchurk, B.

AU - Golovanov, V.

N1 - JUFOID=57485 Funding Information: This work was supported by NATO SPS MYP project NANEOS, Grant No. 985043. V.G. thanks Project HPC-EUROPA3 (INFRAIA-2016-1-730897) for the support. Publisher Copyright: © 2020 IEEE.

PY - 2020

Y1 - 2020

N2 - We investigated the effect of light activation on the gas sensors based on aligned nanowires (NWs). Due to almost monocrystalline perfection, NWs exhibit excellent chemical and thermal stability that makes them superior to polycrystalline thin-film sensors. Nanowires were aligned in two different ways: using Langmuir-Blodgett technique on a chip with electrodes being two microns apart, and using hydrothermal growth procedure to obtain inter-crossed nanowires. Our objective was to fabricate multiple aligned nanowire sensors that could mimic the advantages of a single NW sensors, but benefiting from a macroscopic alignment procedure that avoid the use of lithography for making contacts on a single nanowire. In the present study, we investigated the effects of illumination wavelength (sub and supra band-gap) on the sensing capabilities of the developed structures at room temperature. Light activated devices were found effective for NO2 sensing, while no interference to ethanol and relative humidity was observed.

AB - We investigated the effect of light activation on the gas sensors based on aligned nanowires (NWs). Due to almost monocrystalline perfection, NWs exhibit excellent chemical and thermal stability that makes them superior to polycrystalline thin-film sensors. Nanowires were aligned in two different ways: using Langmuir-Blodgett technique on a chip with electrodes being two microns apart, and using hydrothermal growth procedure to obtain inter-crossed nanowires. Our objective was to fabricate multiple aligned nanowire sensors that could mimic the advantages of a single NW sensors, but benefiting from a macroscopic alignment procedure that avoid the use of lithography for making contacts on a single nanowire. In the present study, we investigated the effects of illumination wavelength (sub and supra band-gap) on the sensing capabilities of the developed structures at room temperature. Light activated devices were found effective for NO2 sensing, while no interference to ethanol and relative humidity was observed.

KW - aligned NWs

KW - gas sensing

KW - light activation

KW - NO

KW - ZnO

U2 - 10.1109/SENSORS47125.2020.9278839

DO - 10.1109/SENSORS47125.2020.9278839

M3 - Conference contribution

AN - SCOPUS:85098715867

SN - 9781728168029

T3 - Proceedings of IEEE Sensors

BT - IEEE Sensors, SENSORS 2020 - Conference Proceedings

PB - IEEE

T2 - IEEE SENSORS

Y2 - 25 October 2020 through 28 October 2020

ER -

Effect of light activation on chemical gas sensors based on aligned nanowires

Abstrakti

Julkaisusarja

Conference

Rahoitus

Julkaisufoorumi-taso

!!ASJC Scopus subject areas

Pääsy asiakirjaan

Sormenjälki

Siteeraa tätä