High Energy Storage Properties and Electrical Field Stability of Energy Efficiency of (Pb0.89La0.11)(Zr0.70Ti0.30)0.9725O3 Relaxor Ferroelectric Ceramics

Ajeet Kumar; So Hyeon Kim; Mahesh Peddigari; Dong-Hyuk Jeong; Geon-Tae Hwang; Jungho Ryu

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자료유형: 학술저널

저자정보: Ajeet Kumar (Yeungnam University) So Hyeon Kim (Yeungnam University) Mahesh Peddigari (Korea Institute of Materials Science) Dong-Hyuk Jeong (Yeungnam University) Geon-Tae Hwang (Korea Institute of Materials Science) Jungho Ryu (Yeungnam University)

저널정보: 대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.15 No.3

발행연도: 2019.1

수록면: 323 - 330 (8page)

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In this study, electric energy storage properties of (Pb 0.89 La 0.11 )(Zr 0.70 Ti 0.30 ) 0.9725 O 3 (PLZT 11/70/30) relaxor ceramics wereinvestigated. XRD pattern and SEM image confi rms the perovskite phase and dense structure without any secondary phasesand pores, respectively. Room temperature dielectric constant was found to be high (~ 3520) with low dielectric loss (~ 0.03). Dielectric constant changes with temperature confi rm the relaxor ferroelectric behaviour of PLZT ceramics. Diff erentparameters such as degree of deviation ( ΔT m ) from the Curie–Weiss law, the diff useness of the phase transition ( ΔT diff ) anddegree of diff useness ( γ ), which are related to the relaxor nature of ferroelectrics were calculated. With the remarkably slimpolarization versus electric fi eld hysteresis loops even at high applied electric fi eld, high energy storage of 0.85 J/cm 3 andvery high energy storage effi ciency of 92.9% were obtained from the PLZT ceramics. These values suggest that the PLZT11/70/30 composition can be used for the pulse driving energy storage applications.

#PLZT · Relaxor · Ferroelectric · Energy storage · Capacitor

참고문헌 (48)

참고문헌 신청

Ortega, N. / 2012 / Relaxor-ferroelectric superlattices : high energy density capacitors / J. Phys. : Condens. Matter 24:445901

Tong, S. / 2013 / Lead lanthanum zirconate titanate ceramic thin films for energy storage / ACS Appl. Mater. Interfaces 5:1474~1480

Park, M. H. / 2014 / Thin Hf x Zr 1−xO2 films : a new lead-free system for electrostatic supercapacitors with large energy storage density and robust thermal stability / Adv. Energy Mater 4:1400610

양대열 / 2017 / Energy Storage Properties of Dy3+ Doped Sr0.5Ba0.5Nb2O6 Thick Film With Nano-Size Grains / Metals and Materials International 23(5):1045~1049

Mahesh Peddigari / 2019 / Linear and Nonlinear Dielectric Ceramics for High-Power Energy Storage Capacitor Applications / 한국세라믹학회지 56(1):1~23

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