Literature DB >> 27376963

Giant Negative Electrocaloric Effects of Hf0.5 Zr0.5 O2 Thin Films.

Min Hyuk Park1, Han Joon Kim1, Yu Jin Kim1, Taehwan Moon1, Keum Do Kim1, Young Hwan Lee1, Seung Dam Hyun1, Cheol Seong Hwang2.   

Abstract

Hafnia (HfO2 )-zirconia (ZrO2 ) solid solution films show giant positive (ΔT = 13.4 K) and negative (ΔT = -10.8 K) electrocaloric effects that can be simply controlled by tuning the Hf/Zr ratio. It is expected that the combination of the electrocaloric effects with opposite signs in this lead-free, simple, binary oxide can significantly improve the efficiency of electrocaloric cooling.
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Keywords:  ferroelectricity; hafnia; negative electrocaloric effect; solid-state cooling; thin films

Year:  2016        PMID： 27376963     DOI： 10.1002/adma.201602787

Source DB:  PubMed          Journal:  Adv Mater        ISSN： 0935-9648            Impact factor:   30.849


  2 in total

Review 1.  Energy Storage and Electrocaloric Cooling Performance of Advanced Dielectrics.

Authors:  Yalong Zhang; Jie Chen; Huiyu Dan; Mudassar Maraj; Biaolin Peng; Wenhong Sun
Journal:  Molecules       Date:  2021-01-18       Impact factor: 4.411

2.  Highly efficient and giant negative electrocaloric effect of a Nb and Sn co-doped lead zirconate titanate antiferroelectric film near room temperature.

Authors:  Quanliang Zhao; Tianyu Sheng; Lei Pang; Guangping He; Jiejian Di; Lei Zhao; Zhiling Hou; Maosheng Cao
Journal:  RSC Adv       Date:  2019-10-23       Impact factor: 4.036
  2 in total

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