Energy Harvesters and Self-Powered Sensors for Smart Electronics, 3rd Edition

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

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 499

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Guest Editor
School of Mechanical and Electric Engineering, Soochow University, Suzhou 215123, China
Interests: sensors; energy harvesting; piezoelectricity; MEMS
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Special Issue Information

Dear Colleagues,

In recent years, we have witnessed the revolutionary innovation and flourishing development of the Internet of Things (IoT), which will further proliferate with the gradual rollout of the fifth-generation (5G) wireless network across the globe. Enabled by the ultrahigh-speed data communication capability of 5G, various IoT systems can be envisioned by linking numerous interrelated electronic devices together in an integrated and interconnected network, such as the smart factory, unmanned shop, smart home, or wearable body network. Within these complicated and widely distributed systems, energy supply in the IoT era is gradually migrating from a centralized and ordered supply mode towards a mobile and in situ supply. Compared to current battery technology, energy-harvesting technologies that scavenge available energies from the ambient surroundings exhibit great advantages as an energy supply, e.g., extended and unlimited lifetime, high portability, flexible/stretchable compatibility, and the ability to develop sustainability. Recently, different energy-harvesting technologies have undergone significant innovation, providing key functionalities in diversified systems such as energy harvesters and self-powered sensors. Accordingly, this Special Issue seeks to showcase research papers and review articles that are focused on advanced developments in the design, fabrication, integration, and application of energy-harvesting technologies, with a particular focus on energy harvesters, nanogenerators, self-powered sensors and systems.

Prof. Dr. Qiongfeng Shi
Prof. Dr. Huicong Liu
Guest Editors

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Keywords

  • energy harvesters
  • nanogenerators
  • self-powered sensors
  • smart electronics
  • internet of things

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Published Papers (1 paper)

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Research

11 pages, 2822 KiB  
Article
Flexible Thermoelectric Device Based on Protrusion-Structured Liquid Metal Elastomer for Gravity Heat Pipe
by Xiaogang Zhang, Xinghua Zhang, Shaocheng Ge, Bailin Zhang, Dongguang Zhang and Jiayi Yang
Micromachines 2024, 15(5), 592; https://0-doi-org.brum.beds.ac.uk/10.3390/mi15050592 - 29 Apr 2024
Viewed by 261
Abstract
Monitoring the temperature of the coal gangue mountains is fundamental to preventing their spontaneous combustion. However, the existing temperature monitoring systems fail to achieve stable, pollution-free temperature monitoring without affecting vegetation growth in these mountains. To address this issue, this work proposes a [...] Read more.
Monitoring the temperature of the coal gangue mountains is fundamental to preventing their spontaneous combustion. However, the existing temperature monitoring systems fail to achieve stable, pollution-free temperature monitoring without affecting vegetation growth in these mountains. To address this issue, this work proposes a flexible thermoelectric device (FTD) based on a protrusion-structured liquid metal elastomer (LME). Utilizing a high-thermal-conductivity LME, the FTD adheres closely to the surface of the gravity heat pipe (GHP), ensuring compatibility between FTD and the curved surface of the GHP. Simultaneously, employing a low-thermal-conductivity elastomer helps concentrate heat onto FTD, thereby enhancing thermoelectric power generation efficiency. Additionally, the impact of the shape, size, and height of the protrusion structure at the cold end of the GHP on its efficiency was also investigated. The practical application of FTD on GHP was demonstrated. Full article
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