Are lead-free relaxor ferroelectric materials the most promising candidates for energy storage capacitors?

Jayakrishnan, A. R.; Silva, J.P.B.; Kamakshi, Koppole; Dastan, Davoud; Annapureddy, Venkateswarlu; Pereira, M.; Sekhar, K. C.

doi:10.1016/j.pmatsci.2022.101046

Cited by 163 publications

(57 citation statements)

References 242 publications

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“…107 Moreover, nanoscale ferroelectric HfO 2 , Hf x Zr 1Àx O 2 (HZO) (with x ranging from 0 to 1), and ZrO 2 are suitable candidates for large-area, cost-effective energy storage. [108][109][110][111][112][113][114] Given the possibility of achieving robust ferroelectric polarization in sub-10 nm thick HZO films, flexible HZO thin films deposited on PET substrates did not show obvious deterioration in ferroelectric properties during spalling and transfer. 115 However, flexible HZO films have not being investigated for energy harvesting, while FE HfO 2 thin films deposited on an Si substrate demonstrated excellent current responsivity with an ultrafast response time (in the ms range) utilizing the ferro-pyro-phototronic effect will be useful for applications such as security alert systems, memory storage, and vision sensors.…”

Section: Perspectives and Concluding Remarksmentioning

confidence: 99%

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

et al. 2023

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Section: Perspectives and Concluding Remarksmentioning

confidence: 99%

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

et al. 2023

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“…28−30 Weak interactions do not induce a significant electrical response. 31−34 Transition metal (TM) decoration as a cost-effective and facile method can effectively enhance their electric conductivity 35 and electrochemical performance due to the strong interactions between gas molecules and adsorbents. 36−41 Among them, the InN monolayer is considered an excellent candidate for decorating.…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that the mechanism of gas sensing involves the electron transfer or co-existence (electrical response) between gas molecules and adsorbents. − Weak interactions do not induce a significant electrical response. − Transition metal (TM) decoration as a cost-effective and facile method can effectively enhance their electric conductivity and electrochemical performance due to the strong interactions between gas molecules and adsorbents. − Among them, the InN monolayer is considered an excellent candidate for decorating. Guo et al reported that noble metal atom (Pd, Pt, Ag, and Au)-decorated InN monolayers as a gas sensing material could cause an obvious electrical response of NO 2 adsorption.…”

Section: Introductionmentioning

confidence: 99%

Metal-Decorated InN Monolayer Senses N₂ against CO₂

Tao

Dastan

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Poor selectivity is a common problem faced by gas sensors. In particular, the contribution of each gas cannot be reasonably distributed when a binary mixture gas is co-adsorbed. In this paper, taking CO2 and N2 as an example, density functional theory is used to reveal the mechanism of selective adsorption of a transition metal (Fe, Co, Ni, and Cu)-decorated InN monolayer. The results show that Ni decoration can improve the conductivity of the InN monolayer while at the same time demonstrating an unexpected affinity for binding N2 instead of CO2. Compared with the pristine InN monolayer, the adsorption energies of N2 and CO2 on the Ni-decorated InN are dramatically increased from −0.1 to −1.93 eV and from −0.2 to −0.66 eV, respectively. Interestingly, for the first time, the density of states demonstrates that the Ni-decorated InN monolayer achieves a single electrical response to N2, eliminating the interference of CO2. Furthermore, the d-band center theory explains the advantage of Ni decorated in gas adsorption over Fe, Co, and Cu atoms. We also highlight the necessity of thermodynamic calculations in evaluating practical applications. Our theoretical results provide new insights and opportunities for exploring N2-sensitive materials with high selectivity.

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“…In this work, we firstly prepared BaO-SrO-Bi2O3-Na2O-TiO2-Al2O3-SiO2 (represented by GS) glass powder, and then fabricated (Ba0.3Sr0.7)0.5(Bi0.5Na0.5)0.5TiO3+xwt.%GS ceramic composites (abbreviated as BS0. x=0,2,6,10,14,16,18). Submicrocrystals/nanocrystals with a similar composition to BS0.5BNT were crystalized from the glass, ensuring the formation of uniform core-shell structure in BS0.5BNT-xGS relaxor ferroelectric ceramic/glass-ceramic composites.…”

mentioning

confidence: 99%

BS _0.5BNT-based relaxor ferroelectric ceramic/glass–ceramic composites for energy storage

Shi¹,

Li²,

Shen³

et al. 2023

Journal of Advanced Ceramics

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Relaxor ferroelectric ceramics have very high dielectric constant but relatively low electrical breakdown strength, while glass-ceramics exhibit higher electrical breakdown strength due to the more uniformly dispersed amorphous phases and submicrocrystals/nanocrystals inside. How to effectively combine the advantages of both relaxor ferroelectric ceramics and glass-ceramics is of 2 great significance for the development of new dielectric materials with high energy storage performances. In this work, we firstly prepared BaO-SrO-Bi2O3-Na2O-TiO2-Al2O3-SiO2 (represented by GS) glass powder, and then fabricated (Ba0.3Sr0.7)0.5(Bi0.5Na0.5)0.5TiO3+xwt.%GS ceramic composites (abbreviated as BS0. x=0,2,6,10,14,16,18). Submicrocrystals/nanocrystals with a similar composition to BS0.5BNT were crystalized from the glass, ensuring the formation of uniform core-shell structure in BS0.5BNT-xGS relaxor ferroelectric ceramic/glass-ceramic composites. When the addition amount of GS was 14 wt.%, the composite possessed both high dielectric constant (εr>3200 @1 kHz) and high electrical breakdown strength (Eb~170 kV/cm) at room temperature, and their recoverable energy storage density and efficiency were Wrec=2.1 J/cm 3 and η=65.2%, respectively. The BS0.5BNT-14GS composite also had several attractive properties such as good temperature, frequency, cycle stability, and fast charge-discharge speed. This work provides insights into the relaxor ceramic/glass-ceramic composites for pulsed power capacitors and sheds light on the utilization of the hybrid systems.

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Are lead-free relaxor ferroelectric materials the most promising candidates for energy storage capacitors?

Cited by 163 publications

References 242 publications

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

Metal-Decorated InN Monolayer Senses N₂ against CO₂

BS _0.5BNT-based relaxor ferroelectric ceramic/glass–ceramic composites for energy storage

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Are lead-free relaxor ferroelectric materials the most promising candidates for energy storage capacitors?

Cited by 163 publications

References 242 publications

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

Inorganic ferroelectric thin films and their composites for flexible electronic and energy device applications: current progress and perspectives

Metal-Decorated InN Monolayer Senses N2 against CO2

BS 0.5BNT-based relaxor ferroelectric ceramic/glass–ceramic composites for energy storage

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Product

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Metal-Decorated InN Monolayer Senses N₂ against CO₂

BS _0.5BNT-based relaxor ferroelectric ceramic/glass–ceramic composites for energy storage