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Ultrafast humidity sensor based on liquid phase exfoliated graphene

Authorized Users Only
2020
Authors
Andrić, Stevan
Tomašević-Ilić, Tijana
Bošković, Marko V.
Sarajlić, Milija
Vasiljević-Radović, Dana
Smiljanić, Milče M.
Spasenović, Marko
Article (Published version)
,
IOP Publishing Ltd.
Metadata
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Abstract
Humidity sensing is important to a variety of technologies and industries, ranging from environmental and industrial monitoring to medical applications. Although humidity sensors abound, few available solutions are thin, transparent, compatible with large-area sensor production and flexible, and almost none are fast enough to perform human respiration monitoring through breath detection or real-time finger proximity monitoring via skin humidity sensing. This work describes chemiresistive graphene-based humidity sensors produced in few steps with facile liquid phase exfoliation followed by Langmuir–Blodgett assembly that enables active areas of practically any size. The graphene sensors provide a unique mix of performance parameters, exhibiting resistance changes up to 10% with varying humidity, linear performance over relative humidity (RH) levels between 8% and 95%, weak response to other constituents of air, flexibility, transparency of nearly 80%, and response times of 30 ms. The fa...st response to humidity is shown to be useful for respiration monitoring and real-time finger proximity detection, with potential applications in flexible touchless interactive panels.

Keywords:
graphene / liquid phase exfoliation / humidity sensing / respiration monitoring
Source:
Nanotechnology, 2020, 32, 2, 025505-
Publisher:
  • IOP Publishing
Funding / projects:
  • Micro- Nanosystems and Sensors for Electric Power and Process Industry and Environmental Protection (RS-32008)
  • Gramulsen - Graphene-Based Wearable Multiparameter Sensor (RS-6057070)

DOI: 10.1088/1361-6528/abb973

ISSN: 0957-4484

PubMed: 32942262

WoS: 000577199100001

Scopus: 2-s2.0-85094219579
[ Google Scholar ]
8
2
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3993
Collections
  • Gramulsen
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Andrić, Stevan
AU  - Tomašević-Ilić, Tijana
AU  - Bošković, Marko V.
AU  - Sarajlić, Milija
AU  - Vasiljević-Radović, Dana
AU  - Smiljanić, Milče M.
AU  - Spasenović, Marko
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3993
AB  - Humidity sensing is important to a variety of technologies and industries, ranging from environmental and industrial monitoring to medical applications. Although humidity sensors abound, few available solutions are thin, transparent, compatible with large-area sensor production and flexible, and almost none are fast enough to perform human respiration monitoring through breath detection or real-time finger proximity monitoring via skin humidity sensing. This work describes chemiresistive graphene-based humidity sensors produced in few steps with facile liquid phase exfoliation followed by Langmuir–Blodgett assembly that enables active areas of practically any size. The graphene sensors provide a unique mix of performance parameters, exhibiting resistance changes up to 10% with varying humidity, linear performance over relative humidity (RH) levels between 8% and 95%, weak response to other constituents of air, flexibility, transparency of nearly 80%, and response times of 30 ms. The fast response to humidity is shown to be useful for respiration monitoring and real-time finger proximity detection, with potential applications in flexible touchless interactive panels.
PB  - IOP Publishing
T2  - Nanotechnology
T1  - Ultrafast humidity sensor based on liquid phase exfoliated graphene
VL  - 32
IS  - 2
SP  - 025505
DO  - 10.1088/1361-6528/abb973
ER  - 
@article{
author = "Andrić, Stevan and Tomašević-Ilić, Tijana and Bošković, Marko V. and Sarajlić, Milija and Vasiljević-Radović, Dana and Smiljanić, Milče M. and Spasenović, Marko",
year = "2020",
abstract = "Humidity sensing is important to a variety of technologies and industries, ranging from environmental and industrial monitoring to medical applications. Although humidity sensors abound, few available solutions are thin, transparent, compatible with large-area sensor production and flexible, and almost none are fast enough to perform human respiration monitoring through breath detection or real-time finger proximity monitoring via skin humidity sensing. This work describes chemiresistive graphene-based humidity sensors produced in few steps with facile liquid phase exfoliation followed by Langmuir–Blodgett assembly that enables active areas of practically any size. The graphene sensors provide a unique mix of performance parameters, exhibiting resistance changes up to 10% with varying humidity, linear performance over relative humidity (RH) levels between 8% and 95%, weak response to other constituents of air, flexibility, transparency of nearly 80%, and response times of 30 ms. The fast response to humidity is shown to be useful for respiration monitoring and real-time finger proximity detection, with potential applications in flexible touchless interactive panels.",
publisher = "IOP Publishing",
journal = "Nanotechnology",
title = "Ultrafast humidity sensor based on liquid phase exfoliated graphene",
volume = "32",
number = "2",
pages = "025505",
doi = "10.1088/1361-6528/abb973"
}
Andrić, S., Tomašević-Ilić, T., Bošković, M. V., Sarajlić, M., Vasiljević-Radović, D., Smiljanić, M. M.,& Spasenović, M.. (2020). Ultrafast humidity sensor based on liquid phase exfoliated graphene. in Nanotechnology
IOP Publishing., 32(2), 025505.
https://doi.org/10.1088/1361-6528/abb973
Andrić S, Tomašević-Ilić T, Bošković MV, Sarajlić M, Vasiljević-Radović D, Smiljanić MM, Spasenović M. Ultrafast humidity sensor based on liquid phase exfoliated graphene. in Nanotechnology. 2020;32(2):025505.
doi:10.1088/1361-6528/abb973 .
Andrić, Stevan, Tomašević-Ilić, Tijana, Bošković, Marko V., Sarajlić, Milija, Vasiljević-Radović, Dana, Smiljanić, Milče M., Spasenović, Marko, "Ultrafast humidity sensor based on liquid phase exfoliated graphene" in Nanotechnology, 32, no. 2 (2020):025505,
https://doi.org/10.1088/1361-6528/abb973 . .

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