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Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design

Journal Article


Abstract


  • Dielectric capacitors with ultrahigh power densities are fundamental energy storagecomponents in electrical and electronic systems. However, a long-standing challenge isimproving their energy densities. We report dielectrics with ultrahigh energy densitiesdesigned with polymorphic nanodomains. Guided by phase-field simulations, weconceived and synthesized lead-free BiFeO3-BaTiO3-SrTiO3solid-solution films to realizethe coexistence of rhombohedral and tetragonal nanodomains embedded in a cubicmatrix. We obtained minimized hysteresis while maintaining high polarization andachieved a high energy density of 112 joules per cubic centimeter with a high energyefficiency of ~80%. This approach should be generalizable for designing high-performance dielectrics and other functional materials that benefit from nanoscaledomain structure manipulation.

UOW Authors


  •   Pan, Hao (external author)
  •   Li, Fei (external author)
  •   Liu, Yao (external author)
  •   Zhang, Qinghua (external author)
  •   Wang, Meng (external author)
  •   Lan, Shun (external author)
  •   Zheng, Yunpeng (external author)
  •   Ma, Jing (external author)
  •   Gu, Lin (external author)
  •   Shen, Yang (external author)
  •   Yu, Pu (external author)
  •   Zhang, Shujun
  •   Chen, Long-Qing (external author)
  •   Lin, Yuan-Hua (external author)
  •   Nan, Ce-Wen (external author)

Publication Date


  • 2019

Citation


  • Pan, H., Li, F., Liu, Y., Zhang, Q., Wang, M., Lan, S., Zheng, Y., Ma, J., Gu, L., Shen, Y., Yu, P., Zhang, S., Chen, L., Lin, Y. & Nan, C. (2019). Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design. Science, 365 (6453), 578-582.

Scopus Eid


  • 2-s2.0-85070710548

Number Of Pages


  • 4

Start Page


  • 578

End Page


  • 582

Volume


  • 365

Issue


  • 6453

Place Of Publication


  • United States

Abstract


  • Dielectric capacitors with ultrahigh power densities are fundamental energy storagecomponents in electrical and electronic systems. However, a long-standing challenge isimproving their energy densities. We report dielectrics with ultrahigh energy densitiesdesigned with polymorphic nanodomains. Guided by phase-field simulations, weconceived and synthesized lead-free BiFeO3-BaTiO3-SrTiO3solid-solution films to realizethe coexistence of rhombohedral and tetragonal nanodomains embedded in a cubicmatrix. We obtained minimized hysteresis while maintaining high polarization andachieved a high energy density of 112 joules per cubic centimeter with a high energyefficiency of ~80%. This approach should be generalizable for designing high-performance dielectrics and other functional materials that benefit from nanoscaledomain structure manipulation.

UOW Authors


  •   Pan, Hao (external author)
  •   Li, Fei (external author)
  •   Liu, Yao (external author)
  •   Zhang, Qinghua (external author)
  •   Wang, Meng (external author)
  •   Lan, Shun (external author)
  •   Zheng, Yunpeng (external author)
  •   Ma, Jing (external author)
  •   Gu, Lin (external author)
  •   Shen, Yang (external author)
  •   Yu, Pu (external author)
  •   Zhang, Shujun
  •   Chen, Long-Qing (external author)
  •   Lin, Yuan-Hua (external author)
  •   Nan, Ce-Wen (external author)

Publication Date


  • 2019

Citation


  • Pan, H., Li, F., Liu, Y., Zhang, Q., Wang, M., Lan, S., Zheng, Y., Ma, J., Gu, L., Shen, Y., Yu, P., Zhang, S., Chen, L., Lin, Y. & Nan, C. (2019). Ultrahigh-energy density lead-free dielectric films via polymorphic nanodomain design. Science, 365 (6453), 578-582.

Scopus Eid


  • 2-s2.0-85070710548

Number Of Pages


  • 4

Start Page


  • 578

End Page


  • 582

Volume


  • 365

Issue


  • 6453

Place Of Publication


  • United States