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Advances in Flexible Self-Powered Electronics Sensors
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Advances in Flexible Self-Powered Electronics Sensors

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

Deadline for manuscript submissions: 5 February 2025 | Viewed by 4876

Special Issue Editors

Dr. Zijie Xu

E-Mail Website
Guest Editor
1. University of Chinese Academy of Sciences, Beijing, China
2. Beijing Institute of Nanoenergy and Nanosystems, Beijing, China
Interests: flexible self-powered sensing systems
Dr. Leo N.Y. Cao

E-Mail Website
Guest Editor
Beijing Institute of Nanoenergy and Nanosystems, Beijing, China
Interests: fluid dynamics; triboelectric nanogenerators; advanced manufacturing
Dr. Wenxi Guo

E-Mail Website
Guest Editor
Department of Physics, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China
Interests: flexible electronics
Special Issues, Collections and Topics in MDPI journals
Dr. Dukhyun Choi

E-Mail Website
Guest Editor
School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
Interests: nano sensors; nanoenergy; electronic skin with physical sensor; plasmonics; nanostructures; nanocomposites; piezoelectronics; energy harvesting; triboelectric; atomic force microscopy; tip-enhanced Raman spectroscopy; physical sensor; flexible device; stretchable device; nanomechanics; meta-materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce a call for papers for a Special Issue of Sensors on "Advances in Flexible Self-Powered Electronics Sensors". Research focused on the field of flexible self-powered electronics sensing has become a hotspot, attracting significant attention from researchers across various disciplines. The multifaceted nature of these sensors, encompassing material synthesis, characterization, processing technology, device preparation, and system integration, presents a vast space for exploration. For these types of sensors, from material synthesis and characterization, processing technology, and device preparation to system integration, there is a huge space for exploration. Here, we call for work that includes but is not limited to the following areas in this Special Issue of Sensors.

We seek contributions encompassing, but not limited to, advancements in flexible sensor fabrication techniques, novel materials for flexible sensing applications, innovative approaches for energy harvesting and storage in flexible sensors, system integration strategies, sensor characterization methods, and applications of flexible self-powered sensors in healthcare, environmental monitoring, and beyond. Researchers are encouraged to share their pioneering work and contribute to the advancement of this dynamic field.

Dr. Zijie Xu
Dr. Leo N.Y. Cao
Dr. Wenxi Guo
Dr. Dukhyun Choi
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

  • triboelectric nanogenerators
  • piezoelectric nanogenerators
  • self-powered sensors
  • flexible electronics
  • wearable electronics
  • fluid dynamics
  • advanced manufacturing
  • advanced materials
  • nano energy and nano systems
  • green energy

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Published Papers (4 papers)

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Research

11 pages, 4515 KiB  
Article
Flexible Pressure Sensors Based on P(VDF-TrFE) Films Incorporated with Ag@PDA@PZT Particles
by Yingzheng Mei, Chuan Cao, Peng Zhou, Jianqiao Wang, Miaoxuan Liu, Xunzhong Shang, Juan Jiang, Yajun Qi and Tianjin Zhang
Sensors 2024, 24(16), 5415; https://doi.org/10.3390/s24165415 - 21 Aug 2024
Viewed by 964
Abstract
Films of piezoelectric poly(vinylidene fluoride) (PVDF) and its copolymer P(VDF-TrFE) have been studied intensively for their potential application in piezoelectric sensing devices. The present work focuses on tuning the piezoelectric properties of P(VDF-TrFE) films via incorporating Ag and polydopamine co-decorated PZT (Ag@PDA@PZT) particles. [...] Read more.
Films of piezoelectric poly(vinylidene fluoride) (PVDF) and its copolymer P(VDF-TrFE) have been studied intensively for their potential application in piezoelectric sensing devices. The present work focuses on tuning the piezoelectric properties of P(VDF-TrFE) films via incorporating Ag and polydopamine co-decorated PZT (Ag@PDA@PZT) particles. Ag@PDA@PZT particles can effectively improve the β-phase content and piezoelectric properties of P(VDF-TrFE) films. The highest open-circuit voltage and short-circuit current of P(VDF-TrFE)-based flexible pressure sensors incorporating Ag@PDA@PZT particles are ~30 V and ~2.4 μA, respectively. The flexible sensors exhibit a response to different body movements, providing a practical and potentially useful basis for human−machine interface applications. Full article
(This article belongs to the Special Issue Advances in Flexible Self-Powered Electronics Sensors)
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21 pages, 4924 KiB  
Article
Design and Manufacture of Multifunctional 3-D Smart Skins with Embedded Sensor Networks for Robotic Applications
by Elliot Ransom, Xiyuan Chen, William Mangram, Amir Nasrollahi, Tanay Topac and Fu-Kuo Chang
Sensors 2024, 24(11), 3441; https://doi.org/10.3390/s24113441 - 27 May 2024
Viewed by 818
Abstract
An investigation was performed to develop a process to design and manufacture a 3-D smart skin with an embedded network of distributed sensors for non-developable (or doubly curved) surfaces. A smart skin is the sensing component of a smart structure, allowing such structures [...] Read more.
An investigation was performed to develop a process to design and manufacture a 3-D smart skin with an embedded network of distributed sensors for non-developable (or doubly curved) surfaces. A smart skin is the sensing component of a smart structure, allowing such structures to gather data from their surrounding environments to make control and maintenance decisions. Such smart skins are desired across a wide variety of domains, particularly for those devices where their surfaces require high sensitivity to external loads or environmental changes such as human-assisting robots, medical devices, wearable health components, etc. However, the fabrication and deployment of a network of distributed sensors on non-developable surfaces faces steep challenges. These challenges include the conformal coverage of a target object without causing prohibitive stresses in the sensor interconnects and ensuring positional accuracy in the skin sensor deployment positions, as well as packaging challenges resulting from the thin, flexible form factor of the skin. In this study, novel and streamlined processes for making such 3-D smart skins were developed from the initial sensor network design to the final integrated skin assembly. Specifically, the process involved the design of the network itself (for which a physical simulation-based optimization was developed), the deployment of the network to a targeted 3D surface (for which a specialized tool was designed and implemented), and the assembly of the final skin (for which a novel process based on dip coating was developed and implemented.) Full article
(This article belongs to the Special Issue Advances in Flexible Self-Powered Electronics Sensors)
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14 pages, 3306 KiB  
Article
Flexible Self-Powered Low-Decibel Voice Recognition Mask
by Jianing Li, Yating Shi, Jianfeng Chen, Qiaoling Huang, Meidan Ye and Wenxi Guo
Sensors 2024, 24(10), 3007; https://doi.org/10.3390/s24103007 - 9 May 2024
Cited by 2 | Viewed by 1041
Abstract
In environments where silent communication is essential, such as libraries and conference rooms, the need for a discreet means of interaction is paramount. Here, we present a single-electrode, contact-separated triboelectric nanogenerator (CS-TENG) characterized by robust high-frequency sensing capabilities and long-term stability. Integrating this [...] Read more.
In environments where silent communication is essential, such as libraries and conference rooms, the need for a discreet means of interaction is paramount. Here, we present a single-electrode, contact-separated triboelectric nanogenerator (CS-TENG) characterized by robust high-frequency sensing capabilities and long-term stability. Integrating this TENG onto the inner surface of a mask allows for the capture of conversational speech signals through airflow vibrations, generating a comprehensive dataset. Employing advanced signal processing techniques, including short-time Fourier transform (STFT), Mel-frequency cepstral coefficients (MFCC), and deep learning neural networks, facilitates the accurate identification of speaker content and verification of their identity. The accuracy rates for each category of vocabulary and identity recognition exceed 92% and 90%, respectively. This system represents a pivotal advancement in facilitating secure and efficient unobtrusive communication in quiet settings, with promising implications for smart home applications, virtual assistant technology, and potential deployment in security and confidentiality-sensitive contexts. Full article
(This article belongs to the Special Issue Advances in Flexible Self-Powered Electronics Sensors)
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13 pages, 2883 KiB  
Article
Transformer Monitoring with Electromagnetic Energy Transmission and Wireless Sensing
by Shuxing Xu, Yurui Shang, Zhenming Li, Yongling Lu, Mingyang Liu, Wei Liu, Zhen Wang and Wei Tang
Sensors 2024, 24(5), 1606; https://doi.org/10.3390/s24051606 - 1 Mar 2024
Cited by 1 | Viewed by 1357
Abstract
To ensure stable and normal transformer operation, light gas protection of the transformer Buchholz relay is essential. However, false alarms related to light gas protection are common, and troubleshooting them often requires on-site gas sampling by personnel. During this time, the transformer’s operating [...] Read more.
To ensure stable and normal transformer operation, light gas protection of the transformer Buchholz relay is essential. However, false alarms related to light gas protection are common, and troubleshooting them often requires on-site gas sampling by personnel. During this time, the transformer’s operating state may rapidly deteriorate, posing a safety threat to field staff. To tackle these challenges, this work presents the near-field, thin-sliced transformer monitoring system that uses Electromagnetic Energy Transmission and Wireless Sensing Device (ETWSD). The system leverages external wireless energy input to power gas monitoring sensors. Simultaneously, it employs Near-Field Communication to obtain real-time concentrations of light gases, along with the electrified state and temperature. In field testing conducted on transformer relays’ gas collection chambers, the ETWSD effortlessly monitors parameters within warning ranges, encompassing methane gas concentrations around 1000 ppm, leakage voltage ranging from 0–100 V, and relay working temperatures up to 90 °C. Additionally, to facilitate real-time diagnosis for electrical workers, we have developed an Android-based APP software that displays current light gas concentrations, leakage voltage collection values, and temperature, while also enabling threshold judgment, alarms, and data storage. The developed ETWSD is expected to aid on-site personnel in promptly and accurately evaluating transformer light gas protection error alarm faults. It provides a method for simultaneous, contactless, and rapid monitoring of multiple indicators. Full article
(This article belongs to the Special Issue Advances in Flexible Self-Powered Electronics Sensors)
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