Energy conversion and storage using artificially induced antiferroelectricity in HfO2/ZrO2 nanolaminates

Kun Yang, Eun Been Lee, Dong Hyun Lee, Ju Yong Park, Se Hyun Kim, Geun Hyeong Park, Geun Taek Yu, Je In Lee, Gun Hwan Kim, Min Hyuk Park

Research output: Contribution to journalArticlepeer-review


The field-induced transition, which is useful for converting between electrical and thermal energy, was induced in artificially designed complementary-metal–oxide–semiconductor-compatible HfO2/ZrO2 nanolaminates. The electrocaloric effect in HfO2/ZrO2 nanolaminates was affected by the stacking order, attributed to differences in the relative fraction of the nonferroelectric monoclinic phase, and by the aspect ratio, reflecting crystallographic similarities to the tetragonal or orthorhombic phase. An adiabatic temperature change of up to 12.25 K was achieved using a HfO2/ZrO2 bilayer sample. Furthermore, as an electrostatic supercapacitor, the energy storage density reached 49.90 J/cm3.

Original languageEnglish
Article number109824
JournalComposites Part B: Engineering
Publication statusPublished - 2022 May 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea funded by the Ministry of Science and ICT (Grant Nos. 2020R1C1C1008193 , 2020M3F3A2A01081593 , and 2021M3F3A2A02037889 ). MHP is supported by the POSCO Science Fellowship of the TJ Park Science Foundation. KY is supported by the BK21 FOUR Program by Pusan National University Research Grant, 2021 .

Publisher Copyright:
© 2022 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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