Oxygen Vacancies Generated Out-of-Plane and In-Plane Ferroelectricity in Layered Bi<sub>2</sub>WO<sub>6</sub> Nanoflake

doi:10.1002/adfm.202419399

IMR OpenIR

	Oxygen Vacancies Generated Out-of-Plane and In-Plane Ferroelectricity in Layered Bi₂WO₆ Nanoflake
	Wang, Lin 1; Pan, Xiaohang 1; Zhang, Yong 1; Zhong, Yunlei 1; Zhang, Xu 1; Zhang, Zhen 1; Li, Alei 1; Zhao, Pin 1; Guo, Qing 1; Li, Yunfei 1; Zhang, Hui 1; Xu, Leilei 1; Wang, Yujia 2; Han, Mengjiao 3; Ma, Xiuliang 3,4,5; Kang, Lixing 1
通讯作者	Wang, Yujia(yjwang@imr.ac.cn) ; Han, Mengjiao(hanmengjiao@sslab.org.cn) ; Ma, Xiuliang(xlma@sslab.org.cn) ; Kang, Lixing(lxkang2013@sinano.ac.cn)
	2025-02-10
发表期刊	ADVANCED FUNCTIONAL MATERIALS
ISSN	1616-301X
页码	10
摘要	Ferroelectricity in ultrathin 2D materials has garnered significant attention owing to its potential applications in nonvolatile memory, nanoelectronics, and optoelectronics. However, the exploration of ferroelectricity in materials possessing inherent centrosymmetric or mirror symmetry, particularly in the 2D domain, remains limited. In this study, the chemical vapor deposition (CVD) technique is utilized to synthesize ultrathin Bi2WO6 (BWO) nanoflakes, revealing robustly intercorrelated out-of-plane (OOP) and in-plane (IP) ferroelectric polarization. The measured ferroelectric phase transition temperature of ultrathin BWO nanoflake is approximate to 800 K. The emergence of OOP ferroelectricity in BWO nanoflake is ascribed to the displacement of oxygen vacancies between neighboring asymmetric sites, leading to the disruption of local structural mirror symmetry and the alignment of dipole moments. Moreover, the IP and OOP ferroelectric responses are modulated by distinct maximum bias voltages. This investigation offers novel insights into the advancement of 2D ferroelectrics with elevated Curie temperatures.
关键词	Bi2WO6 CVD method out-of-plane ferroelectricity oxygen vacancies
资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences (SINANO) ; Basic Research Development Program of SuZhou ; Jiangsu Funding Program for Excellent Postdoctoral Talent ; Guangdong Basic and Applied Basic Research Foundation ; China Postdoctoral Science Foundation
DOI	10.1002/adfm.202419399
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Chinese Academy of Sciences (SINANO) ; Basic Research Development Program of SuZhou[SJC2023004] ; Jiangsu Funding Program for Excellent Postdoctoral Talent[2023ZB167] ; Jiangsu Funding Program for Excellent Postdoctoral Talent[2023ZB065] ; Jiangsu Funding Program for Excellent Postdoctoral Talent[2023ZB293] ; Guangdong Basic and Applied Basic Research Foundation[2024A1515012200] ; China Postdoctoral Science Foundation[2022M722331] ; China Postdoctoral Science Foundation[2023M742561] ; China Postdoctoral Science Foundation[2023M742557] ; [52372055] ; [52202184] ; [52272136]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001420790100001
出版者	WILEY-V C H VERLAG GMBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180018
专题	中国科学院金属研究所
通讯作者	Wang, Yujia; Han, Mengjiao; Ma, Xiuliang; Kang, Lixing
作者单位	1.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Div Adv Mat, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Songshan Lake Mat Lab, Bay Area Ctr Electron Microscopy, Dongguan 523808, Peoples R China 4.Quantum Sci Ctr Guangdong HongKong Macau Greater B, Shenzhen 518045, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lin,Pan, Xiaohang,Zhang, Yong,et al. Oxygen Vacancies Generated Out-of-Plane and In-Plane Ferroelectricity in Layered Bi₂WO₆ Nanoflake[J]. ADVANCED FUNCTIONAL MATERIALS,2025:10.
APA	Wang, Lin.,Pan, Xiaohang.,Zhang, Yong.,Zhong, Yunlei.,Zhang, Xu.,...&Kang, Lixing.(2025).Oxygen Vacancies Generated Out-of-Plane and In-Plane Ferroelectricity in Layered Bi₂WO₆ Nanoflake.ADVANCED FUNCTIONAL MATERIALS,10.
MLA	Wang, Lin,et al."Oxygen Vacancies Generated Out-of-Plane and In-Plane Ferroelectricity in Layered Bi₂WO₆ Nanoflake".ADVANCED FUNCTIONAL MATERIALS (2025):10.