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Origin of ultrahigh-performance barium titanate-based piezoelectrics: Stannum-induced intrinsic and extrinsic contributions.
Wu, Bo; Zheng, Huijing; Wu, Yan-Qi; Huang, Zhicheng; Thong, Hao-Cheng; Tao, Hong; Ma, Jian; Zhao, Chunlin; Xu, Ze; Liu, Yi-Xuan; Xing, Zhipeng; Liang, Naixin; Yao, Fang-Zhou; Wu, Chao-Feng; Wang, Ke; Han, Bing.
Afiliación
  • Wu B; Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Sichuan Province Key Laboratory of Information Materials, Southwest Minzu University, Chengdu, P. R. China.
  • Zheng H; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
  • Wu YQ; Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Sichuan Province Key Laboratory of Information Materials, Southwest Minzu University, Chengdu, P. R. China.
  • Huang Z; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
  • Thong HC; Department of Thoracic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
  • Tao H; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
  • Ma J; Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Sichuan Province Key Laboratory of Information Materials, Southwest Minzu University, Chengdu, P. R. China.
  • Zhao C; Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station, Sichuan Province Key Laboratory of Information Materials, Southwest Minzu University, Chengdu, P. R. China.
  • Xu Z; College of Materials Science and Engineering, Fuzhou University, Fuzhou, P. R. China. zhaochunlin@fzu.edu.cn.
  • Liu YX; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
  • Xing Z; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
  • Liang N; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
  • Yao FZ; Department of Thoracic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
  • Wu CF; Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing, P. R. China. yaofangzhou@xjtu.edu.cn.
  • Wang K; Center of Advanced Ceramic Materials and Devices, Yangtze Delta Region Institute of Tsinghua University, Zhejiang, China.
  • Han B; State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, P. R. China.
Nat Commun ; 15(1): 7700, 2024 Sep 04.
Article en En | MEDLINE | ID: mdl-39227599
ABSTRACT
Despite the pivotal role of stannum doping in achieving ultrahigh piezoelectric performance in barium titanate-based ceramics, the fundamental mechanisms underlying this enhancement remain elusive. Here, we introduce a single variable nonstoichiometric stannum strategy in lead-free barium titanate-based ceramics with giant piezoelectricity, revealing that stannum doping contributes intrinsically and extrinsically to enhance piezoelectricity. Density functional theory calculations elucidate the intrinsic enhancement of polarization arising from lattice distortion and increased space for titanium-oxygen bonds induced by optimal stannum doping, which is corroborated by Rayleigh analysis. A phase transition from ferroelectric multiphase coexistence to paraelectric phase is observed, alongside a rapid miniaturized and eventually disappeared domains with increasing stannum doping. This evolution in phase structure and domain configuration induces a nearly vanishing polarization anisotropy and low domain wall energy, facilitating easy polarization rotation and domain wall motion, thereby significantly contributing to the extrinsic piezoelectric response. Consequently, the origins of ultrahigh performance can be attributed to the synergistic effect of stannum-induced intrinsic and extrinsic contributions in barium titanate-based ceramics. This study provides fundamental insights into the role of doping elements and offers guidance for the design of high-performance piezoelectrics.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido