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The State-of-the-Art in Semiconductor Materials Based Sensors
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The State-of-the-Art in Semiconductor Materials Based Sensors

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

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 5103

Special Issue Editor

Dr. Maria Vesna Nikolić

E-Mail Website
Guest Editor
Institute for Multidisciplinary Research, University of Belgrade, 11000 Belgrade, Serbia
Interests: sensing materials; sensor properties; metal oxide nanomaterials; gas sensors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the state of the art for sensors based on semiconductor materials, including metal oxides, conducting polymers, carbon nanotubes, and 2D materials, with a special emphasis on nanostructured materials, heterostructures, and nanocomposites. Sensors based on semiconductor materials include chemiresistive sensors and electrochemical biosensors. The aim of this Special Issue is to highlight the diverse spectra of semiconducting materials used in sensors and their synthesis procedures, properties, and technology, including printable and flexible electronics in a wide range of sensing applications, spanning monitoring of the environment, food industry, health monitoring, industrial applications, and smart cities.

Dr. Maria Vesna Nikolić
Guest Editor

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

  • semiconductor materials
  • metal oxides
  • carbon nanotubes
  • 2D materials
  • nanocomposites
  • heterostructures
  • chemiresistive sensors
  • electrochemical biosensors
  • flexible sensors

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Published Papers (2 papers)

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Research

22 pages, 14781 KiB  
Article
Mechanochemical Synthesis of TiO2-CeO2 Mixed Oxides Utilized as a Screen-Printed Sensing Material for Oxygen Sensor
by Jelena N. Stevanović, Srđan P. Petrović, Nenad B. Tadić, Katarina Cvetanović, Ana G. Silva, Dana Vasiljević Radović and Milija Sarajlić
Sensors 2023, 23(3), 1313; https://doi.org/10.3390/s23031313 - 24 Jan 2023
Cited by 5 | Viewed by 2515
Abstract
TiO2 and CeO2 are well known as oxygen sensing materials. Despite high sensitivity, the actual utilization of these materials in gas detection remains limited. Research conducted over the last two decades has revealed synergistic effects of TiO2-CeO2 mixed [...] Read more.
TiO2 and CeO2 are well known as oxygen sensing materials. Despite high sensitivity, the actual utilization of these materials in gas detection remains limited. Research conducted over the last two decades has revealed synergistic effects of TiO2-CeO2 mixed oxides that have the potential to improve some aspects of oxygen monitoring. However, there are no studies on the sensing properties of the TiO2-CeO2 obtained by mechanochemical treatment. We have tested the applicability of the mechanochemically treated TiO2-CeO2 for oxygen detection and presented the results in this study. The sensing layers are prepared as a porous structure by screen printing a thick film on a commercial substrate. The obtained structures were exposed to various O2 concentrations. The results of electrical measurements showed that TiO2-CeO2 films have a significantly lower resistance than pure oxide films. Mixtures of composition TiO2:CeO2 = 0.8:0.2, ground for 100 min, have the lowest electrical resistance among the tested materials. Mixtures of composition TiO2:CeO2 = 0.5:0.5 and ground for 100 min proved to be the most sensitive. The operating temperature can be as low as 320 °C, which places this sensor in the class of semiconductor sensors working at relatively lower temperatures. Full article
(This article belongs to the Special Issue The State-of-the-Art in Semiconductor Materials Based Sensors)
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15 pages, 5174 KiB  
Article
Microspherical Titanium-Phosphorus Double Oxide: Hierarchical Structure Development for Sensing Applications
by Elena Korina, Anton Abramyan, Oleg Bol’shakov, Vyacheslav V. Avdin, Sladjana Savić, Dragan Manojlović, Vesna Stanković and Dalibor M. Stanković
Sensors 2023, 23(2), 933; https://doi.org/10.3390/s23020933 - 13 Jan 2023
Cited by 1 | Viewed by 1847
Abstract
Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and [...] Read more.
Stable, water-soluble titanium complexed with mandelic acid was used as a precursor for titanium phosphorus double oxide obtained in hydrothermal conditions in the presence of phosphoric acid. Surprisingly, hydrolysis of organic complexes provided a microstructured sphere with narrow size distribution, low aggregation and a small fraction of morphological irregularities. Obtained microspheres had a complex structure comprised of flakes, whose size could be manipulated with temperature conditions. Samples were found to be electrochemically active against sulcotrione, a well-recognized herbicide. Electrochemical sensors based on the synthesized microspheres were successfully adapted for natural water reservoir analysis and exhibited low levels of detection of 0.61 µM, limit of quantification of 1.86 µM, wide dynamic linear range from 2 to 200 µM, good selectivity, excellent reproducibility and in-time stability. Full article
(This article belongs to the Special Issue The State-of-the-Art in Semiconductor Materials Based Sensors)
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