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Materials Engineering and Electronic Sensing

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Materials".

Deadline for manuscript submissions: closed (30 October 2024) | Viewed by 1089

Special Issue Editors


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Guest Editor
Faculty of Electrical, Electronic, Computer and Control Engineering, Institute of Electrical Engineering Systems, Lodz University of Technology, Stefanowskiego 18, 90-537 Lodz, Poland
Interests: materials science; cryogenics and low temperature technology; electrical engineering; magnetic materials and properties; textronics; organic electronics

Special Issue Information

Dear Colleagues,

This Special Issue is based on the activity of the group of scholars dealing with the applications of electromagnetism in agriculture, medicine, electronic and electrical engineering, computational electromagnetism, modeling and simulation, measurements and industrial/medical tomography. The research activity is institutionally under care of the Polish Society of Applied Electromagnetism (www.ptze.pl). The Special Issue is also open for all scholars who provide their research in the areas specified below.

This Special Issue will be devoted to the applications of new solutions and computational methods in the following areas:

  • Applications of electromagnetism in agriculture;
  • Applications of electromagnetism in food science;
  • Applications of electromagnetism in engineering;
  • Applications of electromagnetism in medicine;
  • Applications of electromagnetism in computer science;
  • Bioelectromagnetism and environmental protection;
  • Computational electromagnetism;
  • Sensing materials;
  • Material science in sensors;
  • Wearable electronics;
  • Textronics;
  • Electromagnetic materials;
  • Medical and industrial applications of tomography;
  • Electromagnetism in education and social policy;
  • Tomography.

Dr. Ewa Korzeniewska
Dr. Marcin Lebioda
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • bioelectromagnetism
  • sensors
  • numerical calculation
  • machine learning
  • computational intelligence
  • coupled systems
  • tomography
  • wearable electronics
  • textronics

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Published Papers (1 paper)

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Research

16 pages, 3750 KiB  
Article
Humidity-Sensing Performance of TiO2/RGO and α-Fe2O3/RGO Composites
by Wanghui Zou, Chenhui Wu and Wei Zhao
Sensors 2025, 25(3), 691; https://doi.org/10.3390/s25030691 - 24 Jan 2025
Cited by 1 | Viewed by 670
Abstract
This study investigates the humidity-sensing properties of two semiconductor metal oxide (SMO)-reduced graphene oxide (RGO) nanocomposites: TiO2/RGO and α-Fe2O3/RGO, at room temperature. Both nanocomposites are synthesized via hydrothermal methods and coated onto printed circuit board (PCB) interdigital [...] Read more.
This study investigates the humidity-sensing properties of two semiconductor metal oxide (SMO)-reduced graphene oxide (RGO) nanocomposites: TiO2/RGO and α-Fe2O3/RGO, at room temperature. Both nanocomposites are synthesized via hydrothermal methods and coated onto printed circuit board (PCB) interdigital electrodes to construct humidity sensors. The surface morphology and crystallographic structure of the materials are characterized using field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The sensors are tested across a humidity range of 11%RH to 97%RH, and the impedance is measured over a frequency range of 1 Hz to 1 MHz. The results show that both TiO2/RGO and α-Fe2O3/RGO exhibit favorable humidity-sensing performance at room temperature. The sensitivity and humidity hysteresis of TiO2/RGO are 12.2 MΩ/%RH and 3.811%RH, respectively, while those of α-Fe2O3/RGO are 0.826 MΩ/%RH and 8.229%RH. The response and recovery times of TiO2/RGO are 72 s and 99 s, respectively, while those of α-Fe2O3/RGO are 48 s and 54 s. Both sensors demonstrate good repeatability and stability. These findings suggest that SMO/RGO nanocomposites are promising materials for the development of low-cost, high-sensitivity, and stable humidity sensors. Full article
(This article belongs to the Special Issue Materials Engineering and Electronic Sensing)
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