Laser-Induced Graphene on Chitosan: An Enabling Technology for Sustainable Resistive Humidity Sensors

Johanna Zikulnig; Lukas Neumaier; Martin Lenzhofer; Sandro Carrara; Jurgen Kosel

doi:10.1109/LSENS.2023.3300829

Laser-Induced Graphene on Chitosan: An Enabling Technology for Sustainable Resistive Humidity Sensors

Johanna Zikulnig^*, Lukas Neumaier, Martin Lenzhofer, Sandro Carrara, Jurgen Kosel

^*Corresponding author for this work

Computer, Electrical and Mathematical Sciences and Engineering

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

1 Scopus citations

Abstract

The development and characterization of resistive humidity sensors based on Chitosan on a glass substrate is reported. The sensor electrodes are made of laser-induced graphene derived from Chitosan, which represents a sustainability advancement by eliminating the need for adding additional materials during fabrication. Depending on the sensor design, a high sensitivity can be achieved either in the lower or higher humidity range with a total operation span from 40 to 100% rH. Both sensors exhibit good stability, especially at high humidity levels (80% rH) over a 24-h cycle. The Chitosan-based sensors, hence, offer an excellent combination of sustainability and high performance, making them an attractive solution for countless humidity sensing applications.

Original language	English (US)
Article number	1501104
Journal	IEEE Sensors Letters
Volume	7
Issue number	9
DOIs	https://doi.org/10.1109/LSENS.2023.3300829
State	Published - Sep 1 2023

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

chitosan
humidity sensing
laser-induced graphene (LIG)
Sensor phenomena
sustainable sensorics

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

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10.1109/LSENS.2023.3300829

Cite this

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abstract = "The development and characterization of resistive humidity sensors based on Chitosan on a glass substrate is reported. The sensor electrodes are made of laser-induced graphene derived from Chitosan, which represents a sustainability advancement by eliminating the need for adding additional materials during fabrication. Depending on the sensor design, a high sensitivity can be achieved either in the lower or higher humidity range with a total operation span from 40 to 100% rH. Both sensors exhibit good stability, especially at high humidity levels (80% rH) over a 24-h cycle. The Chitosan-based sensors, hence, offer an excellent combination of sustainability and high performance, making them an attractive solution for countless humidity sensing applications.",

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Laser-Induced Graphene on Chitosan: An Enabling Technology for Sustainable Resistive Humidity Sensors

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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