DataVXAdvanced MaterialsPaper
journal article·2023-11

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

Mahesh Peddigari, Bo Wang, Rui Wang, Woon‐Ha Yoon, Jongmoon Jang, Hyunjong Lee, Kyung Song, Geon‐Tae Hwang, Kai Wang, Yuchen Hou, Haribabu Palneedi, Yongke Yan, Han Seung Choi, Jianjun Wang, Aravindkrishna Talluri, Long‐Qing Chen, Shashank Priya, Dae‐Yong Jeong, Jungho Ryu

Advanced Materials· Volume 35· Issue 45
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Source abstract

Abstract

Abstract 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(Zr0.52Ti0.48)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.
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Research context

NanomaterialsElectronic materialsMaterials processing

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Dielectric materials and actuators · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Functional Ceramics Korea Institute of Materials Science (KIMS) Changwon Gyeongnam 51508 Republic of Korea

Department of Physics Indian Institute of Technology Hyderabad Kandi Telangana 502284 India

Materials Research Institute/Department of Materials Science and Engineering Pennsylvania State University University Park PA 16802 USA

Department of Materials Analysis and Evaluation Korea Institute of Materials Science (KIMS) Changwon Gyeongnam 51508 Republic of Korea

Department of Materials Science and Engineering Pukyong National University Busan 43241 Republic of Korea

School of Materials Science and Engineering Yeungnam University Gyeongsan Gyeongbuk 38541 Republic of Korea

Department of Materials Science and Engineering Inha University Incheon 22212 Republic of Korea

Institute of Materials Technology Yeungnam University Gyeongsan Gyeongbuk 38541 Republic of Korea

Funding

National Research Foundation of Korea · National Science Foundation

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