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Micromachines
Special Issues
Ferroelectric Micro and Nano Sensors
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Ferroelectric Micro and Nano Sensors

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (10 December 2020) | Viewed by 5692

Special Issue Editor

Dr. Antonino S. Fiorillo

E-Mail Website
Guest Editor
BATS Laboratory, Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
Interests: discrete and silicon micro and nanosensors based on ferroelectric and conducting polymers (ultrasonic transducers, pyroelectric sensors; electronic interfaces; field effect based sensors), as well as nanoporous materials, for an application in the fields of robotics and medicine
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Due to their broad field of application, especially that of bio-inspired sensors and systems, ferroelectric micro and nanosensors represent an area of intense research. Mechanical and thermal energy transducers for applications at low, medium, and high ultrasonic frequencies (piezoelectric effect) and infrared (pyroelectric effect) have been employed in multiple contexts, with an ever-growing literature over the years. At the same time, during the last decade, the technology of polymeric miniaturized sensors has allowed the development of a long list of technological possibilities, leading to one of the fastest-growing markets. One of the most interesting applications concerns the development of sensors aimed at emulating the sophisticated and evolved sensorial systems already present in nature (e.g., biosonar system, tactile sensors). Accordingly, this Special Issue seeks to showcase research papers and review articles that focus on novel methodological developments in the field of ferroelectric materials for the fabrication of micro and nanosensors and the related electronic interfaces.

Prof. Dr. Antonino S. Fiorillo
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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. Micromachines is an international peer-reviewed open access monthly 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

  • ferroelectric sensors
  • electronic interfaces
  • bio-inspired sensors
  • ferroelectric materials and characterization

Published Papers (3 papers)

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Research

14 pages, 5522 KiB  
Article
A Second-Generation Voltage-Conveyor-Based Interface for Ultrasonic PVDF Sensors
by Salvatore A. Pullano, Antonino S. Fiorillo, Gianluca Barile, Vincenzo Stornelli and Giuseppe Ferri
Micromachines 2021, 12(2), 99; https://doi.org/10.3390/mi12020099 - 20 Jan 2021
Cited by 6 | Viewed by 1592
Abstract
Exploiting the transmission and reception of low frequency ultrasounds in air is often associated with the innate echolocating abilities of some mammals, later emulated with sophisticated electronic systems, to obtain information about unstructured environments. Here, we present a novel approach for the reception [...] Read more.
Exploiting the transmission and reception of low frequency ultrasounds in air is often associated with the innate echolocating abilities of some mammals, later emulated with sophisticated electronic systems, to obtain information about unstructured environments. Here, we present a novel approach for the reception of ultrasounds in air, which exploits a piezopolymer broadband sensor and an electronic interface based on a second-generation voltage conveyor (VCII). Taking advantage of its capability to manipulate both voltage and current signals, in this paper, we propose an extremely simple interface that presents a sensitivity level of about −100 dB, which is in line with commercially available references. The presented results are obtained without any filtration stage. The second-generation voltage conveyor active device is implemented through a commercially available AD844, with a supply voltage of ±15 V. Full article
(This article belongs to the Special Issue Ferroelectric Micro and Nano Sensors)
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12 pages, 2491 KiB  
Article
Application of P(VDF-TrFE) Glass Coating for Robust Harmonic Nanoparticles Characterization
by Svitlana G. Ilchenko, Volodymyr V. Multian, Ruslan A. Lymarenko, Victor B. Taranenko, Salvatore A. Pullano, Antonino S. Fiorillo and Volodymyr Ya. Gayvoronsky
Micromachines 2021, 12(1), 41; https://doi.org/10.3390/mi12010041 - 01 Jan 2021
Cited by 2 | Viewed by 1849
Abstract
Polyvinylidene fluoride and its copolymers are a well-known family of low-cost ferroelectric materials widely used for the fabrication of devices for a wide range of applications. A biocompatibility, high optical quality, chemical and mechanical durability of poly(vinylidene fluoride–trifluoroethylene), (P(VDF–TrFE)), makes it particularly attractive [...] Read more.
Polyvinylidene fluoride and its copolymers are a well-known family of low-cost ferroelectric materials widely used for the fabrication of devices for a wide range of applications. A biocompatibility, high optical quality, chemical and mechanical durability of poly(vinylidene fluoride–trifluoroethylene), (P(VDF–TrFE)), makes it particularly attractive for designing of effective coating layers for different diagnostic techniques. In the present work, the nonlinear optical characterization of P(VDF-TrFE)-coating films deposited onto a glass substrate was done. Advantages of the coating application for cells/substrates in the field of multiphoton imaging the efficiency of such coating layer for long-duration characterization of so-called harmonic nanoparticles (HNPs) were shown. The influence of glass surface protection by P(VDF-TrFE) film from an effect of HNPs sticking to the walls of the flow-cell was analyzed for effective studying of the optical harmonics generation efficiency of HNPs making the analysis more robust. Full article
(This article belongs to the Special Issue Ferroelectric Micro and Nano Sensors)
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13 pages, 2574 KiB  
Article
Electromechanical Analysis of Flexoelectric Nanosensors Based on Nonlocal Elasticity Theory
by Yaxuan Su and Zhidong Zhou
Micromachines 2020, 11(12), 1077; https://doi.org/10.3390/mi11121077 - 04 Dec 2020
Cited by 10 | Viewed by 1891
Abstract
Flexoelectric materials have played an increasingly vital role in nanoscale sensors, actuators, and energy harvesters due to their scaling effects. In this paper, the nonlocal effects on flexoelectric nanosensors are considered in order to investigate the coupling responses of beam structures. This nonlocal [...] Read more.
Flexoelectric materials have played an increasingly vital role in nanoscale sensors, actuators, and energy harvesters due to their scaling effects. In this paper, the nonlocal effects on flexoelectric nanosensors are considered in order to investigate the coupling responses of beam structures. This nonlocal elasticity theory involves the nonlocal stress, which captures the effects of nonlocal and long-range interactions, as well as the strain gradient stress. Based on the electric Gibbs free energy, the governing equations and related boundary conditions are deduced via the generalized variational principle for flexoelectric nanobeams subjected to several typical external loads. The closed-form expressions of the deflection and induced electric potential (voltage) values of flexoelectric sensors are obtained. The numerical results show that the nonlocal effects have a considerable influence on the induced electric potential of flexoelectric sensors subjected to general transverse forces. Moreover, the induced electric potential values of flexoelectric sensors calculated by the nonlocal model may be smaller or larger than those calculated by the classical model, depending on the category of applied loads. The present research indicates that nonlocal effects should be considered in order to understand or design basic nano-electromechanical components subjected to various external loads. Full article
(This article belongs to the Special Issue Ferroelectric Micro and Nano Sensors)
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