Composition and strain engineered AgNbO3-based multilayer capacitors for ultra-high energy storage capacity

Li Feng Zhu; Lei Zhao; Yongke Yan; Haoyang Leng; Xiaotian Li; Li Qian Cheng; Xiangming Xiong; Shashank Priya

doi:10.1039/d1ta00973g

Composition and strain engineered AgNbO₃-based multilayer capacitors for ultra-high energy storage capacity

Li Feng Zhu
, Lei Zhao
, Yongke Yan
, Haoyang Leng
, Xiaotian Li
, Li Qian Cheng
, Xiangming Xiong
, Shashank Priya

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

Antiferroelectric (AFE) materials owing to their double-loop-shaped electric-field (E) dependent polarization (P) are considered quite promising for energy-storage capacitors. Among the large family of AFE materials, the AgNbO₃composition is attractive not only because it is environmentally friendly, but also because it has high recoverable energy storage density (W_rec). However, the reported values ofW_rec< 4 J cm⁻³in Ag(Nb_0.85Ta_0.15)O₃multilayer capacitors are lower than that of the corresponding monolithic ceramic. This is attributed to high leakage current density (J) and inferior breakdown strength (BDS) in multilayer structures. Here we demonstrate that MnO₂doping not only effectively reduces theJvalue and results in slimP-Eloops, but also enhances the breakdown strength (BDS). Multilayer capacitors with composition Ag(Nb_0.85Ta_0.15)O₃+ 0.25 wt% MnO₂(ANT + Mn) demonstrated an excellentW_rec= 7.9 J cm⁻³and efficiencyη= 71%. Extensive investigations were conducted on ANT + Mn multilayer capacitors to demonstrate the role of strain engineering in enhancing the maximum polarization (P_max) and ΔPvalues. Results reveal the effect of built-in stress in the active layers of multilayer capacitors on the magnitude ofP_max, remanent polarization (P_r) andW_rec, and provide guidance towards the development of high energy storage density in multilayer capacitors.

Original language	English (US)
Pages (from-to)	9655-9664
Number of pages	10
Journal	Journal of Materials Chemistry A
Volume	9
Issue number	15
DOIs	https://doi.org/10.1039/d1ta00973g
State	Published - Apr 21 2021

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

Access to Document

10.1039/d1ta00973g

Cite this

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title = "Composition and strain engineered AgNbO3-based multilayer capacitors for ultra-high energy storage capacity",

abstract = "Antiferroelectric (AFE) materials owing to their double-loop-shaped electric-field (E) dependent polarization (P) are considered quite promising for energy-storage capacitors. Among the large family of AFE materials, the AgNbO3composition is attractive not only because it is environmentally friendly, but also because it has high recoverable energy storage density (Wrec). However, the reported values ofWrec< 4 J cm−3in Ag(Nb0.85Ta0.15)O3multilayer capacitors are lower than that of the corresponding monolithic ceramic. This is attributed to high leakage current density (J) and inferior breakdown strength (BDS) in multilayer structures. Here we demonstrate that MnO2doping not only effectively reduces theJvalue and results in slimP-Eloops, but also enhances the breakdown strength (BDS). Multilayer capacitors with composition Ag(Nb0.85Ta0.15)O3+ 0.25 wt\% MnO2(ANT + Mn) demonstrated an excellentWrec= 7.9 J cm−3and efficiencyη= 71\%. Extensive investigations were conducted on ANT + Mn multilayer capacitors to demonstrate the role of strain engineering in enhancing the maximum polarization (Pmax) and ΔPvalues. Results reveal the effect of built-in stress in the active layers of multilayer capacitors on the magnitude ofPmax, remanent polarization (Pr) andWrec, and provide guidance towards the development of high energy storage density in multilayer capacitors.",

author = "Zhu, \{Li Feng\} and Lei Zhao and Yongke Yan and Haoyang Leng and Xiaotian Li and Cheng, \{Li Qian\} and Xiangming Xiong and Shashank Priya",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",

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T1 - Composition and strain engineered AgNbO3-based multilayer capacitors for ultra-high energy storage capacity

AU - Zhu, Li Feng

AU - Zhao, Lei

AU - Yan, Yongke

AU - Leng, Haoyang

AU - Li, Xiaotian

AU - Cheng, Li Qian

AU - Xiong, Xiangming

AU - Priya, Shashank

PY - 2021/4/21

Y1 - 2021/4/21

N2 - Antiferroelectric (AFE) materials owing to their double-loop-shaped electric-field (E) dependent polarization (P) are considered quite promising for energy-storage capacitors. Among the large family of AFE materials, the AgNbO3composition is attractive not only because it is environmentally friendly, but also because it has high recoverable energy storage density (Wrec). However, the reported values ofWrec< 4 J cm−3in Ag(Nb0.85Ta0.15)O3multilayer capacitors are lower than that of the corresponding monolithic ceramic. This is attributed to high leakage current density (J) and inferior breakdown strength (BDS) in multilayer structures. Here we demonstrate that MnO2doping not only effectively reduces theJvalue and results in slimP-Eloops, but also enhances the breakdown strength (BDS). Multilayer capacitors with composition Ag(Nb0.85Ta0.15)O3+ 0.25 wt% MnO2(ANT + Mn) demonstrated an excellentWrec= 7.9 J cm−3and efficiencyη= 71%. Extensive investigations were conducted on ANT + Mn multilayer capacitors to demonstrate the role of strain engineering in enhancing the maximum polarization (Pmax) and ΔPvalues. Results reveal the effect of built-in stress in the active layers of multilayer capacitors on the magnitude ofPmax, remanent polarization (Pr) andWrec, and provide guidance towards the development of high energy storage density in multilayer capacitors.

AB - Antiferroelectric (AFE) materials owing to their double-loop-shaped electric-field (E) dependent polarization (P) are considered quite promising for energy-storage capacitors. Among the large family of AFE materials, the AgNbO3composition is attractive not only because it is environmentally friendly, but also because it has high recoverable energy storage density (Wrec). However, the reported values ofWrec< 4 J cm−3in Ag(Nb0.85Ta0.15)O3multilayer capacitors are lower than that of the corresponding monolithic ceramic. This is attributed to high leakage current density (J) and inferior breakdown strength (BDS) in multilayer structures. Here we demonstrate that MnO2doping not only effectively reduces theJvalue and results in slimP-Eloops, but also enhances the breakdown strength (BDS). Multilayer capacitors with composition Ag(Nb0.85Ta0.15)O3+ 0.25 wt% MnO2(ANT + Mn) demonstrated an excellentWrec= 7.9 J cm−3and efficiencyη= 71%. Extensive investigations were conducted on ANT + Mn multilayer capacitors to demonstrate the role of strain engineering in enhancing the maximum polarization (Pmax) and ΔPvalues. Results reveal the effect of built-in stress in the active layers of multilayer capacitors on the magnitude ofPmax, remanent polarization (Pr) andWrec, and provide guidance towards the development of high energy storage density in multilayer capacitors.

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