Giant Energy Density via Mechanically Tailored Relaxor Ferroelectric Behavior of PZT Thick Film

Giant Energy Density via Mechanically Tailored Relaxor Ferroelectric Behavior of PZT Thick Film

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 45 vom: 04. Nov., Seite e2302554
1. Verfasser: Peddigari, Mahesh (VerfasserIn)
Weitere Verfasser: Wang, Bo, Wang, Rui, Yoon, Woon-Ha, Jang, Jongmoon, Lee, Hyunjong, Song, Kyung, Hwang, Geon-Tae, Wang, Kai, Hou, Yuchen, Palneedi, Haribabu, Yan, Yongke, Choi, Han Seung, Wang, Jianjun, Talluri, Aravindkrishna, Chen, Long-Qing, Priya, Shashank, Jeong, Dae-Yong, Ryu, Jungho
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article aerosol deposition amorphous structures breakdown strength energy-storage density nanograins relaxor ferroelectrics
Beschreibung
Zusammenfassung:© 2023 Wiley-VCH GmbH.
Relaxor ferroelectrics (RFEs) are being actively investigated for energy-storage applications due to their large electric-field-induced polarization with slim hysteresis and fast energy charging-discharging capability. Here, a novel nanograin engineering approach based upon high kinetic energy deposition is reported, for mechanically inducing the RFE behavior in a normal ferroelectric Pb(Zr0.52 Ti0.48 )O3 (PZT), which results in simultaneous enhancement in the dielectric breakdown strength (EDBS ) and polarization. Mechanically transformed relaxor thick films with 4 µm thickness exhibit an exceptional EDBS of 540 MV m-1 and reduced hysteresis with large unsaturated polarization (103.6 µC cm-2 ), resulting in a record high energy-storage density of 124.1 J cm-3 and a power density of 64.5 MW cm-3 . This fundamental advancement is correlated with the generalized nanostructure design that comprises nanocrystalline phases embedded within the amorphous matrix. Microstructure-tailored ferroelectric behavior overcomes the limitations imposed by traditional compositional design methods and provides a feasible pathway for realization of high-performance energy-storage materials
Beschreibung:Date Revised 09.11.2023
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202302554