Piezoelectric Nanogenerators

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

Deadline for manuscript submissions: closed (10 April 2022) | Viewed by 3330

Special Issue Editor


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Guest Editor
Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-60174 Norrköping, Sweden
Interests: piezoelectric nanogenerators; triboelectric nanogenerator; electrospun piezo-fibers; wearable piezo-sensors; bio-mechanical energy harvesting
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Special Issue Information

Dear Colleagues,

The next big thing that going to happened in the world is the Internet of Things (IoT), and sensors are going to be the backbone of it. Therefore, powering sensors using conventional batteries has become a challenge, as the number of sensors is going to be huge. Piezoelectric nanogenerators offer us the opportunity to make sensors self-powered, such that they can run by themselves by harvesting energy from their surrounding vibrations. Wearable piezoelectric nanogenerators can harvest energy from human motions and also can detect physiological signals for health care monitoring applications. Piezoelectricity also opens up the potential for new cooling (piezoelectric fan) and sound generation (piezoelectric speaker) systems.

Dr. Md. Mehebub Alam
Guest Editor

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Keywords

  • Piezoelectric nanogenerator
  • Self-powered system
  • Piezoelectric e-skin
  • Piezoelectric speaker
  • Piezoelectric sensors and actuators

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Published Papers (1 paper)

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Research

13 pages, 4935 KiB  
Article
Design and Preparation of Self-Oscillating Actuators Using Piezoelectric Ceramics with High Coupling Factors and Mechanical Quality Factors
by So-Won Kim and Hee-Chul Lee
Micromachines 2022, 13(2), 158; https://doi.org/10.3390/mi13020158 - 21 Jan 2022
Cited by 2 | Viewed by 2644
Abstract
Piezoelectric material properties were optimized to develop materials for an ultrasonic vibrator targeting a high vibration efficiency. Herein, novel materials were developed using a composition represented by 0.08Pb(Ni1/3Nb2/3)O3-0.07Pb(Mn1/3Nb2/3)O3-0.85Pb(Zr0.5Ti0.5 [...] Read more.
Piezoelectric material properties were optimized to develop materials for an ultrasonic vibrator targeting a high vibration efficiency. Herein, novel materials were developed using a composition represented by 0.08Pb(Ni1/3Nb2/3)O3-0.07Pb(Mn1/3Nb2/3)O3-0.85Pb(Zr0.5Ti0.5)O3 + 0.3 wt.% CuO + 0.3 wt.% Fe2O3 with 0.3 wt.% Sb2O3 doping. A ceramic shape with a thickness of 2 mm was optimized using finite element analysis software, and high values of coupling factors (0.54) and mechanical quality factors (1151) were obtained. This ceramic was used to fabricate a bio-beauty device (frequency = 1 MHz), and the manufactured ultrasonic vibrator indicated that the actuator oscillated with the maximum amplitude at a frequency of 1.06 MHz. Full article
(This article belongs to the Special Issue Piezoelectric Nanogenerators)
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