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Nano Energy, Nano System and Sensors
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Nano Energy, Nano System and Sensors

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

Deadline for manuscript submissions: closed (10 March 2023) | Viewed by 4237

Special Issue Editors

Dr. Navneet Soin

E-Mail Website
Guest Editor
School of Engineering, Ulster University, Belfast BT37 0QB, Northern Ireland, UK
Interests: energy harvesting; energy storage sensors; plasma processing; bio-sensors; energy systems
Special Issues, Collections and Topics in MDPI journals
Dr. Pengfei Zhao

E-Mail Website
Guest Editor
Department of Precision Mechanical Engineering, Shanghai University, Shanghai 200444, China
Interests: energy harvesting; self-powered sensing; contact charging; energy management system
Dr. Muhammad Usman Hadi

E-Mail Website
Guest Editor
School of Engineering, Ulster University, Belfast BT15 1AP, UK
Interests: microwave Photonics; wireless communication; Internet of Things 4.0
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With ubiquitous and pervasive sensing as the next Internet of Things (IoT) paradigm, the energy systems driver for such technologies requires highly efficient harvesting materials, mechanisms, architectures, and circuits.

Whilst the traditional energy harvesting applications were restricted to industrial high frequency driven piezoelectric systems, newer technologies, and approaches, such as triboelectrics, thermoelectrics, and radio-frequency harvesting have resulted in sensors and low-power energy systems which are inherently energy-frugal. For instance, in triboelectrics, the conversion of low-frequency, low-impact ubiquitous mechanical energy to electrical output at high efficiencies in a simple design has driven varied and exciting research approaches leading to high power densities, currently of the order of hundreds of Watts per m2.

However, complete end-to-end systems incorporating sensing, harvesting, power management and communication often require multidisciplinary approaches to optimize. As such, it is an open field of research that is drawing efforts from nanotechnology, materials science, low-power electronics, signal processing, and sensing communities to develop the next generation of self-powered sensing systems.

This Special Issue of Sensors aims to provide a state-of-the-art status of the energy harvesting and self-powered technologies field. We warmly invite authors to submit original communications, articles, and review papers that cover the breadth of research, development, and applications of such self-powered systems. Topics include but are not limited to the following:

  • Theory, design, modeling, fabrication, experimental characterization and application of energy harvesting systems (triboelectrics, piezoelectrics, thermoelectrics, and radio-frequency-based systems).
  • Design, modeling and validation of power management circuits.
  • Low-power sensing techniques and devices.
  • Design of end-to-end systems and experimental verification and characterization.
  • RF energy harvesting.
  • Applications of energy harvesting systems.
  • Self-powered embedded sensor systems.

Dr. Navneet Soin
Dr. Pengfei Zhao
Dr. Muhammad Usman Hadi
Guest Editors

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. 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

  • energy harvesting
  • nanogenerators
  • piezoelectrics
  • triboelectrics
  • RF
  • low-power design
  • self-powered

Published Papers (2 papers)

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Research

17 pages, 3015 KiB  
Article
A Sequential Electrospinning of a Coaxial and Blending Process for Creating Double-Layer Hybrid Films to Sense Glucose
by Yutong Du, Zili Yang, Shixiong Kang, Deng-Guang Yu, Xiren Chen and Jun Shao
Sensors 2023, 23(7), 3685; https://doi.org/10.3390/s23073685 - 02 Apr 2023
Cited by 15 | Viewed by 1919
Abstract
This study presents a glucose biosensor based on electrospun core–sheath nanofibers. Two types of film were fabricated using different electrospinning procedures. Film F1 was composed solely of core–sheath nanofibers fabricated using a modified coaxial electrospinning process. Film F2 was a double-layer hybrid film [...] Read more.
This study presents a glucose biosensor based on electrospun core–sheath nanofibers. Two types of film were fabricated using different electrospinning procedures. Film F1 was composed solely of core–sheath nanofibers fabricated using a modified coaxial electrospinning process. Film F2 was a double-layer hybrid film fabricated through a sequential electrospinning and blending process. The bottom layer of F2 comprised core–sheath nanofibers fabricated using a modified process, in which pure polymethacrylate type A (Eudragit L100) was used as the core section and water-soluble lignin (WSL) and phenol were loaded as the sheath section. The top layer of F2 contained glucose oxidase (GOx) and gold nanoparticles, which were distributed throughout the polyvinylpyrrolidone K90 (PVP K90) nanofibers through a single-fluid blending electrospinning process. The study investigated the sequential electrospinning process in detail. The experimental results demonstrated that the F2 hybrid film had a higher degradation efficiency of β-D-glucose than F1, reaching a maximum of over 70% after 12 h within the concentration range of 10–40 mmol/L. The hybrid film F2 is used for colorimetric sensing of β-D-glucose in the range of 1–15 mmol/L. The solution exhibited a color that deepened gradually with an increase in β-D-glucose concentration. Electrospinning is flexible in creating structures for bio-cascade reactions, and the double-layer hybrid film can provide a simple template for developing other sensing nanomaterials. Full article
(This article belongs to the Special Issue Nano Energy, Nano System and Sensors)
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9 pages, 2348 KiB  
Communication
Towards More Accurate Determination of the Thermoelectric Properties of Bi2Se3 Epifilms by Suspension via Nanomachining Techniques
by Donguk Kim, Chanuk Yang and Yun Daniel Park
Sensors 2022, 22(20), 8042; https://doi.org/10.3390/s22208042 - 21 Oct 2022
Viewed by 1386
Abstract
We report on the characterization of the thermoelectric properties of Bi2Se3 epifilms. MBE-grown Bi2Se3 films on GaAs (111) A are nanomachined with integrated Pt elements serving as local joule heaters, thermometers, and voltage probes. We suspended a [...] Read more.
We report on the characterization of the thermoelectric properties of Bi2Se3 epifilms. MBE-grown Bi2Se3 films on GaAs (111) A are nanomachined with integrated Pt elements serving as local joule heaters, thermometers, and voltage probes. We suspended a 4 µm × 120 µm Bi2Se3 by nanomachining techniques. Specifically, we selectively etched GaAs buffer/substrate layers by citric acid solution followed by a critical point drying method. We found that the self-heating 3ω method is an appropriate technique for the accurate measurement of the thermal conductivity of suspended Bi2Se3. The measured thermoelectric properties of 200 nm thick Bi2Se3 at room temperature were κ=1.95 W/m K, S=−102.8 μV/K, σ = 75,581 S/m and the figure of merit was ZT=0.12. The study introduces a method to measure thermal conductivity accurately by suspending thin films. Full article
(This article belongs to the Special Issue Nano Energy, Nano System and Sensors)
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