期刊
ADVANCED MATERIALS
卷 28, 期 36, 页码 7956-7961出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201602787
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资金
- Global Research Laboratory Program of the Ministry of Science, ICT, and Future Planning of the Republic of Korea [2012K1A1A2040157]
- National Research Foundation of Korea (NRF) - South Korean government (MSIP) [2014R1A2A1A10052979]
- National Research Foundation of Korea [2014R1A2A1A10052979, 2012K1A1A2040157] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Hafnia (HfO2)-zirconia (ZrO2) solid solution films show giant positive (Delta T = 13.4 K) and negative (Delta T = -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.
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