High Entropy Nonlinear Dielectrics with Superior Thermally Stable Performance

Wang, Yong-Jyun1; Lai, Hung-Chi2; Chen, Yu-Ang1,3,4,11; Huang, Rong3,4; Hsin, Ti5; Liu, Heng-Jui6; Zhu, Ruixue7,8; Gao, Peng7,8; Li, Cong9,10; Yu, Pu9,10; Chen, Yi-Chun; Li, Jiangyu12; Chen, Yi-Cheng; Yeh, Jien-Wei1; Chu, Ying-Hao1,2

2023-10-01

10.1002/adma.202304128

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

["A high configurational entropy, achieved through a proper design of compositions, can minimize the Gibbs free energy and stabilize the quasi-equilibrium phases in a solid-solution form. This leads to the development of high-entropy materials with unique structural characteristics and excellent performance, which otherwise could not be achieved through conventional pathways. This work develops a high-entropy nonlinear dielectric system, based on the expansion of lead magnesium niobate-lead titanate. A dense and uniform distribution of nano-polar regions is observed in the samples owing to the addition of Ba, Hf, and Zr ions, which lead to enhanced performance of nonlinear dielectrics. The fact that no structural phase transformation is detected up to 250 degrees C, and no noticeable change or a steep drop in structural and electrical characteristics is observed at high temperatures suggests a robust thermal stability of the dielectric systems developed. With these advantages, these materials hold vast potential for applications such as dielectric energy storage, dielectric tunability, and electrocaloric effect. Thus, this work offers a new high-entropy configuration with elemental modulation, with enhanced dielectric material features.","This work creates a high-entropy nonlinear dielectric system based on the expansion of lead magnesium niobate-lead titanate with the additive Ba, Hf, and Zr ions. The structural phase transformation is not detected up to 250 degrees C, accompanied by excellent thermal stability at high temperatures on the structural and electrical characteristics. With these advantages, these materials hold vast potential applications.image"]

dielectric materials epitaxial thin film high entropy relaxor

SCI ; EI

英语

NI论文

其他

This work was supported by the Ministry of Science and Technology, Taiwan (grant No. MOST 111-2634-F-A49-007, MOST 109-2124-M-007-006-MY3, MOST 111-2124-M-007-004, MOST 111-2112-M-005-014-) and the Center for Emergent Functional Matter Science of National["MOST 111-2634-F-A49-007","MOST 109-2124-M-007-006-MY3","MOST 111-2124-M-007-004","MOST 111-2112-M-005-014"] ; Ministry of Education (MOE) in Taiwan[61974042]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001087475500001

WILEY-V C H VERLAG GMBH

20234314947222

Dielectric materials ; Dielectric properties ; Free energy ; Gibbs free energy ; Lead titanate ; Niobium compounds ; Thermodynamic stability

Thermodynamics:641.1 ; Dielectric Materials:708.1 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2

MATERIALS SCIENCE

Web of Science

1.Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan
2.Natl Yang Ming Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan
3.East China Normal Univ, Key Lab Polar Mat & Devices MOE, Shanghai 200062, Peoples R China
4.East China Normal Univ, Dept Elect, Shanghai 200062, Peoples R China
5.Imperial Coll London, Dept Mat, London SW7 2AZ, England
6.Natl Chung Hsing Univ, Dept Mat Sci & Engn, Taichung 40227, Taiwan
7.Peking Univ, Int Ctr Quantum Mat, Sch Phys, Beijing 100871, Peoples R China
8.Peking Univ, Sch Phys, Electron Microscopy Lab, Beijing 100871, Peoples R China
9.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
10.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
11.Natl Cheng Kung Univ, Dept Phys, Tainan 701401, Taiwan
12.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Wang, Yong-Jyun,Lai, Hung-Chi,Chen, Yu-Ang,et al. High Entropy Nonlinear Dielectrics with Superior Thermally Stable Performance[J]. ADVANCED MATERIALS,2023,35.

Wang, Yong-Jyun.,Lai, Hung-Chi.,Chen, Yu-Ang.,Huang, Rong.,Hsin, Ti.,...&Chu, Ying-Hao.(2023).High Entropy Nonlinear Dielectrics with Superior Thermally Stable Performance.ADVANCED MATERIALS,35.

Wang, Yong-Jyun,et al."High Entropy Nonlinear Dielectrics with Superior Thermally Stable Performance".ADVANCED MATERIALS 35(2023).