Ultrahigh capacitive energy storage in highly oriented Ba(ZrxTi1-x)O3 thin films prepared by pulsed laser deposition

Abstract

We report structural, optical, temperature and frequency dependent dielectric, and energy storage properties of pulsed laser deposited (100) highly textured BaZr x Ti 1−x O 3 (x=0.3, 0.4 and 0.5) relaxor ferroelectric thin films on La 0.7 Sr 0.3 MnO 3 /MgO substrates which make this compound as a potential lead-free capacitive energy storage material for scalable electronic devices. A high dielectric constant of ~1400-3500 and a low dielectric loss of <0.025 were achieved at 10 kHz for all three compositions at ambient conditions. Ultrahigh stored and recoverable electrostatic energy densities as high as 214 ± 1 and 156 ± 1 J/cm 3 , respectively, were demonstrated at a sustained high electric field of ~3 MV/cm with an efficiency of 72.8 ± 0.6 % in optimum 30% Zr substituted BaTiO 3 composition.Future use of electricity generated from any renewable energy source will benefit greatly from advanced approaches to scalable capacitive energy storage module with a favorable figure for the power-to-mass ratio (specific power) including its usage in personal electronics,

Strategies to Improve the Energy Storage Properties of Perovskite Lead-Free Relaxor Ferroelectrics: A Review

“…On the other hand, using PLD, Instan et al fabricated BZT30 thin films, with an ultrahigh J r of 156 J/cm 3 at 3000 kV/cm and an η of ~73%, which is by far one of the highest achieved ED values in relaxor based thin film structures [ 182 ]. Improving this work, Cheng et al published a record high J s and η of up to 166 J/cm 3 and 96% on BZT based films using RF magnetron sputtering.…”

Progress and perspectives in dielectric energy storage ceramics

“…Therefore, energy www.springer.com/journal/40145 storage performances of BZT-based ceramic systems receive more attention. Instan et al [130] prepared 400 nm <100>-oriented Ba(Zr x Ti 1−x )O 3 (x = 0.3, 0.4, 0.5) relaxor ferroelectric thin films using PLD on La 0.7 Sr 0.3 MnO 3 /MgO substrates. Importantly, W rec of all ceramics can reach a scale of 10 2 around E b ≈ 3 MV/cm, and a maximum W rec of 156 J/cm 3 is obtained at x = 0.3 composition.…”

Structural, dielectric, electrocaloric and energy storage properties of lead free Ba0.975La0.017(ZrxTi0.95-x)Sn0.05O3 (x = 0.05; 0.20) ceramics

“…In the last decade, new emerging applications in BZT-based compounds such as electrocaloric cooling systems or energy storage capacitors have seen a number of publication soaring [18][19][20][21][22][23][24][25][26]. Asbani et al [18] reported a large electrocaloric responsivity coefficient (ΔT/ΔE) of 0.34 K mm/kV in Ba0.8Ca0.2Zr0.04Ti0.96O3 peaked at 386K.…”

“…On the other hand, the energy storage properties in BZT-based ceramics have received also great attention in both bulk [27] and thin-film forms [24][25][26]. It has been shown that these systems have the potential ability to deliver high power density with an ultra-fast chargingdischarging process, promising for advanced electronic applications such as in electric power systems, or in high-frequency inverters and power grids [28,29].…”