Dielectric, ferroelectric, and energy storage properties in dysprosium doped sodium bismuth titanate ceramics

Benyoussef, Manal; Zannen, Moneim; Belhadi, Jamal; Manoun, Bouchaib; Dellis, J.‐L.; Marssi, M. El; Lahmar, Abdelilah

doi:10.1016/j.ceramint.2018.07.182

Cited by 91 publications

(33 citation statements)

References 62 publications

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“…For instance, Shih et al revealed an enhanced conductivity for lithium doped NBT system [8]. Conversely, this conductivity is seen as problematic for piezoelectric, ferroelectric and for energy storage applications [9][10][11][12]. Numerous works were interested on rare earth doping NBT material in order to resolve those issues [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…Rare earth doping has been proved to be a simple and elegant way to enhance the physical properties of the pure matrix [12,16,17]. In a recent work, we reported that a small dysprosium substitution in the A-site of NBT matrix led to a decrease of the coercive field and to a stabilization of the antiferroelectric like behavior at high temperatures which is interesting for energy storage capacitors operating at high temperatures [12]. Note that dysprosium concentrations higher than 10%, were reported to have a paraelectric behavior.…”

Section: Introductionmentioning

confidence: 99%

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Complex impedance and Raman spectroscopy of Na0.5(Bi1-xDyx)0.5TiO3 ceramics

Benyoussef

Zannen

Belhadi

et al. 2020

Ceramics International

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In this work structural refinement, complex impedance spectroscopy (CIS) and Raman spectroscopy have been investigated on Na0.5(Bi1-xDyx)0.5TiO3 (xDyNBT) ceramic systems with x = 0, 2, 5 and 15%. The pure NBT, 2DyNBT and 5DyNBT compounds crystallize in a rhombohedral R3c structure while the 15DyNBT composition crystallizes in an orthorhombic Pnma structure. We reported that dysprosium addition affects the phase transition temperatures as well as the dielectric losses. The electrical transport at high temperatures was investigated using the CIS over a wide frequency range (10-10 6 Hz). The studied samples showed a non-Debye type process, with a short-range relaxation for the pure NBT and a coexistence of both localized and long-range relaxations of charge carriers for the 2DyNBT and 5DyNBT compounds. For the high concentration, 15DyNBT, a short-range relaxation is observed. Moreover, using a bricklayer model we discuss the resistance and capacitance of the different contributors (grain and grain boundaries) in our samples. High temperature Raman spectroscopy investigation was performed in order to follow the temperature evolution of the structural transformations on ferroelectric compounds. Anomalies in the temperature evolution of the vibrational modes are seen to correlate well with the temperature transitions observed from dielectric measurements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Complex impedance and Raman spectroscopy of Na0.5(Bi1-xDyx)0.5TiO3 ceramics

Benyoussef

Zannen

Belhadi

et al. 2020

Ceramics International

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“…Thence the highest energy storage density is expected at room temperature with a corresponding relatively high-energy efficiency. Table 4, gathers the energy storage parameters of some other systems [59][60][61][62]. The temperature instability of the energy storage parameters was evaluated using the equation 5 [63]:…”

Section: Ferroelectric and Energy Storage Investigationsmentioning

confidence: 99%

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

Smail

Benyoussef

Taïbî

et al. 2020

Materials Chemistry and Physics

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A-site deficient Ba0.975La0.0170.0085(ZrxTi0.95-x)Sn0.05O3 (x = 0.05; 0.20) ceramics (BLaZ100xTS) were synthesized using the solid-state reaction. The microstructural study revealed a high density and low porosity in the studied ceramics. Besides, grain size lower than 1.5 µm was observed in the studied compounds, which is due to the incorporation of the rare earth element (lanthanum). X-ray diffraction and Raman studies revealed that BLaZ5TS and BLaZ20TS crystallize in a perovskite-type structure with tetragonal and cubic symmetry, respectively. The dielectric study showed a normal ferroelectric-paraelectric phase transition for BLaZ5TS while a diffuse phase transition is noticed for BLaZ20TS sample. The energy-storage density and the associated energy efficiency were determined from the P-E loops versus temperature and the calculated values are comparable with results obtained on BCZT systems. Furthermore, the adiabatic temperature change ΔT was calculated through the indirect method and a relatively high value of ΔT/ΔE = 0.2 10-6 K m/V is obtained in BLaZ5TS system. The simultaneous presence of energy storage property and electrocaloric responsivity makes this system a promising environmentally friendly candidate for application in electronic devices.

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“…However BaTiO 3 based systems have a lower working range and AgNbO 3 based systems are expensive to synthesize [21,22]. This makes NBT based materials one of the viable alternatives to lead based ones [23][24][25]. Discovered in 1961 by Smolenski et al, research on NBT has surged in the past two decades [13,14,26,27].…”

Section: Introductionmentioning

confidence: 99%

Microstructural, structural, dielectric, piezoelectric and energy storage properties of 0.2 wt% MnO2 doped (0.94-x)Na0.5Bi0.5TiO3–0.06BaTiO3-xK0.5Na0.5NbO3 ceramics (0 ≤ x ≤ 0.08)

et al. 2020

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Lead free (0.94-x)Na 0.5 Bi 0.5 TiO 3-0.06BaTiO 3-xK 0.5 Na 0.5 NbO 3 ceramics are under the spotlight owing to their multifunctional nature. We have systematically investigated the microstructural, structural, dielectric, piezoelectric and energy storage properties of the system in the range 0 ≤ x ≤ 0.08. There is a systematic reduction in grain size with increasing K 0.5 Na 0.5 NbO 3 (KNN) concentration. The enhancement in disorder with K 0.5 Na 0.5 NbO 3 (KNN) doping is evident from the increase in slope of the dielectric dispersion plots. The unpoled compositions have a cubic like structure in the whole range i.e. from x = 0 to x = 0.08. However, the application of electric field(poling) results in a structural transformation to lower symmetry upto x = 0.04. Beyond that the disorder dominates over the applied electric field and the structure is cubic like even in the poled state. The energy storage density increases from 0.08 J/cm 3 for x = 0 to 1.19 J/cm 3 for x = 0.05 and saturates thereafter. Discharge efficiency also follows a similar trend. The piezoresponse decreases with KNN doping from 151 pC/N for x = 0 to 4 pC/N for x = 0.08. It is observed that energy storage density and piezoresponse are complimentary properties which increase at the expense of each other.

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Dielectric, ferroelectric, and energy storage properties in dysprosium doped sodium bismuth titanate ceramics

Cited by 91 publications

References 62 publications

Complex impedance and Raman spectroscopy of Na0.5(Bi1-xDyx)0.5TiO3 ceramics

Complex impedance and Raman spectroscopy of Na0.5(Bi1-xDyx)0.5TiO3 ceramics

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

Microstructural, structural, dielectric, piezoelectric and energy storage properties of 0.2 wt% MnO2 doped (0.94-x)Na0.5Bi0.5TiO3–0.06BaTiO3-xK0.5Na0.5NbO3 ceramics (0 ≤ x ≤ 0.08)

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