Room-Temperature Ferroelectricity in Hexagonally Layered alpha-In2Se3 Nanoflakes down to the Monolayer Limit

doi:10.1002/adfm.201803738

IMR OpenIR

	Room-Temperature Ferroelectricity in Hexagonally Layered alpha-In2Se3 Nanoflakes down to the Monolayer Limit
	Xue, Fei 1; Hu, Weijin 2; Lee, Ko-Chun 3; Lu, Li-Syuan 4; Zhang, Junwei 1; Tang, Hao-Ling 1; Han, Ali 1; Hsu, Wei-Ting 4; Tu, Shaobo 1; Chang, Wen-Hao 4; Lien, Chen-Hsin 3; He, Jr-Hau 5; Zhang, Zhidong 2; Li, Lain-Jong 1,6; Zhang, Xixiang 1
通讯作者	Xue, Fei(xuefei0828@gmail.com) ; Li, Lain-Jong(ljliv@tsmc.com) ; Zhang, Xixiang(xixiang.zhang@kaust.edu.sa)
	2018-12-12
发表期刊	ADVANCED FUNCTIONAL MATERIALS
ISSN	1616-301X
卷号	28 期号:50 页码:7
摘要	2D ferroelectric material has emerged as an attractive building block for high density data storage nanodevices. Although monolayer van der Waals ferroelectrics have been theoretically predicted, a key experimental breakthrough for such calculations is still not realized. Here, hexagonally stacking alpha-In2Se3 nanoflake, a rarely studied van der Waals polymorph, is reported to exhibit out-of-plane (OOP) and in-plane (IP) ferroelectricity at room temperature. Ferroelectric multidomain states in a hexagonal alpha-In2Se3 nanoflake with uniform thickness can survive to 6 nm. Most strikingly, the electric-field-induced polarization switching and hysteresis loop are, respectively, observed down to the bilayer and monolayer (approximate to 1.2 nm) thicknesses, which designates it as the thinnest layered ferroelectric and verifies the corresponding theoretical calculation. In addition, two types of ferroelectric nanodevices employing the OOP and IP polarizations in 2H alpha-In2Se3 are developed, which are applicable for nonvolatile memories and heterostructure-based nanoelectronics/optoelectronics.
关键词	hexagonal alpha-In2Se3 layered 2D materials monolayer room-temperature ferroelectricity
资助者	King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) ; Hundred Talents Program of the Chinese Academy of Sciences ; Ministry of Science and Technology (MOST) of Taiwan ; Center for Emergent Functional Matter Science (CEFMS) of NCTU
DOI	10.1002/adfm.201803738
收录类别	SCI
语种	英语
资助项目	King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR)[CRF-2015-2634-CRG4] ; King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR)[CRF-2016-2996-CRG5] ; Hundred Talents Program of the Chinese Academy of Sciences ; Ministry of Science and Technology (MOST) of Taiwan[105-2119-M-009-014-MY3] ; Ministry of Science and Technology (MOST) of Taiwan[107-2112-M-009-024-MY3] ; Center for Emergent Functional Matter Science (CEFMS) of NCTU
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:000456421000002
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：301[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/131308
专题	中国科学院金属研究所
通讯作者	Xue, Fei; Li, Lain-Jong; Zhang, Xixiang
作者单位	1.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia 2.Chinese Acad Sci, IMR, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Natl TsingHua Univ, Inst Elect Engn, Hsinchu 30013, Taiwan 4.Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30010, Taiwan 5.King Abdullah Univ Sci & Technol, Comp Elect & Math Sci & Engn Div, Thuwal 239556900, Saudi Arabia 6.TSMC, Corp Res & Chief Technol Off, Hsinchu 30075, Taiwan
推荐引用方式 GB/T 7714	Xue, Fei,Hu, Weijin,Lee, Ko-Chun,et al. Room-Temperature Ferroelectricity in Hexagonally Layered alpha-In2Se3 Nanoflakes down to the Monolayer Limit[J]. ADVANCED FUNCTIONAL MATERIALS,2018,28(50):7.
APA	Xue, Fei.,Hu, Weijin.,Lee, Ko-Chun.,Lu, Li-Syuan.,Zhang, Junwei.,...&Zhang, Xixiang.(2018).Room-Temperature Ferroelectricity in Hexagonally Layered alpha-In2Se3 Nanoflakes down to the Monolayer Limit.ADVANCED FUNCTIONAL MATERIALS,28(50),7.
MLA	Xue, Fei,et al."Room-Temperature Ferroelectricity in Hexagonally Layered alpha-In2Se3 Nanoflakes down to the Monolayer Limit".ADVANCED FUNCTIONAL MATERIALS 28.50(2018):7.