A critical review: the impact of electrical poling on the longitudinal piezoelectric strain coefficient

Dani, S.; Tripathy, Alekhika; Alluri, Nagamalleswara Rao; Saravanakumar, B.

doi:10.1039/d2ma00559j

Cited by 32 publications

(11 citation statements)

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“…In a word, the output performance of ferroelectric materialsbased PENGs can boost significantly by the increased piezoelectric response after ferroelectric poling, which is feasible and universal beyond 2D ferroelectrics. [53][54][55] Furthermore, the mechanism of combining the concept of ferroelectric polarization and 2D materials-based PENG was proposed for the first time, which is different from that of combining the concept of ferroelectric polarization and TENG. [56,57] Next, we explored the energy harvesting of the CIPS-based PENG.…”

Section: Resultsmentioning

confidence: 99%

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP₂S₆ Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Zhang

Mao

Zheng

et al. 2023

Adv Funct Materials

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2D piezoelectric materials have strong intrinsic piezoelectricity and superior flexibility, which are endowed with huge potential to develop piezoelectric nanogenerators (PENGs). However, there are few attempts to investigate the energy harvesting of 2D ferroelectric materials. Herein, an enhanced output performance is reported by ferroelectric polarization in a PENG with exfoliated 2D ferroelectric CuInP2S6 (CIPS). Specifically, the polarized CIPS‐based PENG produces a short‐circuit current of 760 pA at 0.85% tensile strain, which is 3.8 times higher than that of unpolarized CIPS‐based PENG. Systematical PFM and Raman analysis reveal that the ferroelectric polarization remarkably reinforces the effective piezoelectric constant of CIPS nanoflakes and boosts the in‐plane migration and out‐of‐plane hopping of copper ions, which is the main reason for the enhancement of output performance. Furthermore, the CIPS‐based PENG can not only be utilized to harvest biomechanical energy such as wrist joints movement, but also exhibits a potential for a voice recognition system integrated with deep learning technology. The classification accuracy of a series of letter sounds is as high as 96%. This study commendably broadens the application scope of 2D materials in micro‐nano energy and intelligent sensors, which will have profound implications for exploring wearable nanoelectronic devices.

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Section: Resultsmentioning

confidence: 99%

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP₂S₆ Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Zhang

Mao

Zheng

et al. 2023

Adv Funct Materials

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“…Annealing (heat treatment), drawing (stretching), and poling (applying an electric field) are important techniques for enhancing piezoelectricity, 103,104 which are summarized in Fig. 3.…”

Section: Piezoelectric Materialsmentioning

confidence: 99%

Electron/hole piezocatalysis in chemical reactions

Asgari,

Mohammadi Ziarani,

Badiei

et al. 2023

Mater. Adv.

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“…Electrical poling is a common approach to regulate a steady polarization of poled electric dipoles in an FE material . However, it is not a user-friendly approach since it needs a high electric voltage (kV to MV order as per the sample thickness), which often leads to an electrical breakdown, damaging the films. , In contrast, self-poling (spin-charge control) of a polymer/ferrite ME composite is a simple strategy that can avoid the need for conventional electrical poling.…”

Section: Introductionmentioning

confidence: 99%

A Spin-Charge-Regulated Self-Powered Nanogenerator for Simultaneous Pyro-Magneto-Electric Energy Harvesting

Saini,

Sengupta,

Mondal

et al. 2024

ACS Nano

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In view of the depletion of natural energy resources, harvesting energy from waste is a revolution to simultaneously capture, unite, and recycle various types of waste energies in flexible devices. Thus, in this work, a spin-charge-regulated pyro-magnetoelectric nanogenerator is devised at a well-known ferroelectric P(VDF-TrFE) copolymer. It promptly stores thermal-magnetic energies in a "capacitor" that generates electricity at room temperature. The ferroelectric domains are regulated to slip at the interfaces (also twins) of duly promoting polarization and other properties. An excellent pyroelectric coefficient p ∼ 615 nC•m −2 •K −1 is obtained, with duly enhanced stimuli of a thermal sensitivity ∼1.05 V•K −1 , a magnetoelectric coefficient α me ∼8.8 mV•cm −1 •Oe −1 at 180 Hz (resonance frequency), and a magnetosensitivity ∼473 V/T. It is noteworthy that a strategy of further improving p (up to 41.2 μC•m −2 •K −1 ) and α me (up to 23.6 mV•cm −1 •Oe −1 ) is realized in the electrically poled dipoles. In a model hybrid structure, the spins lead to switch up the electric dipoles parallel at the polymer chains in a cohesive charged layer. It is an innovative approach for efficiently scavenging waste energies from electric vehicles, homes, and industries, where abundant thermal and magnetic energies are accessible. This sustainable strategy could be useful in next-generation self-powered electronics.

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A critical review: the impact of electrical poling on the longitudinal piezoelectric strain coefficient

Abstract: Piezoelectric materials play an essential character in the advancement of micro and nanoelectronics equipment. Piezoelectric properties of the materials firmly rely upon the degree of polarization that results from the...

Cited by 32 publications

References 306 publications

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP₂S₆ Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP₂S₆ Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Electron/hole piezocatalysis in chemical reactions

A Spin-Charge-Regulated Self-Powered Nanogenerator for Simultaneous Pyro-Magneto-Electric Energy Harvesting

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A critical review: the impact of electrical poling on the longitudinal piezoelectric strain coefficient

Abstract: Piezoelectric materials play an essential character in the advancement of micro and nanoelectronics equipment. Piezoelectric properties of the materials firmly rely upon the degree of polarization that results from the...

Cited by 32 publications

References 306 publications

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP2S6 Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP2S6 Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Electron/hole piezocatalysis in chemical reactions

A Spin-Charge-Regulated Self-Powered Nanogenerator for Simultaneous Pyro-Magneto-Electric Energy Harvesting

Contact Info

Product

Resources

About

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP₂S₆ Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications

Ferroelectric Polarization‐Enhanced Performance of Flexible CuInP₂S₆ Piezoelectric Nanogenerator for Biomechanical Energy Harvesting and Voice Recognition Applications