Room-temperature ferroelectricity in CuInP 2 S 6 ultrathin flakes

Fucai Liu; Lu You; Kyle L. Seyler; Xiaobao Li; Peng Yu; Junhao Lin; Xuewen Wang; Jiadong Zhou; Hong Wang; Haiyong He; Sokrates T. Pantelides; Wu Zhou; Pradeep Sharma; Xiaodong Xu; Pulickel M. Ajayan; Junling Wang; Zheng Liu

doi:10.1038/ncomms12357

Room-temperature ferroelectricity in CuInP 2 S 6 ultrathin flakes

Fucai Liu, Lu You, Kyle L. Seyler, Xiaobao Li, Peng Yu, Junhao Lin, Xuewen Wang, Jiadong Zhou, Hong Wang, Haiyong He, Sokrates T. Pantelides, Wu Zhou, Pradeep Sharma, Xiaodong Xu, Pulickel M. Ajayan, Junling Wang, Zheng Liu

Research output: Contribution to journal › Article › peer-review

893 Scopus citations

Abstract

Two-dimensional (2D) materials have emerged as promising candidates for various optoelectronic applications based on their diverse electronic properties, ranging from insulating to superconducting. However, cooperative phenomena such as ferroelectricity in the 2D limit have not been well explored. Here, we report room-temperature ferroelectricity in 2D CuInP₂ S₆ (CIPS) with a transition temperature of-1/4320 K. Switchable polarization is observed in thin CIPS of-1/44 nm. To demonstrate the potential of this 2D ferroelectric material, we prepare a van der Waals (vdW) ferroelectric diode formed by CIPS/Si heterostructure, which shows good memory behaviour with on/off ratio of-1/4100. The addition of ferroelectricity to the 2D family opens up possibilities for numerous novel applications, including sensors, actuators, non-volatile memory devices, and various vdW heterostructures based on 2D ferroelectricity.

Original language	English
Article number	12357
Journal	Nature Communications
Volume	7
DOIs	https://doi.org/10.1038/ncomms12357
State	Published - 11 Aug 2016
Externally published	Yes

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@article{f588eb6ef2fb4d0382255457401dfb74,

title = "Room-temperature ferroelectricity in CuInP 2 S 6 ultrathin flakes",

abstract = "Two-dimensional (2D) materials have emerged as promising candidates for various optoelectronic applications based on their diverse electronic properties, ranging from insulating to superconducting. However, cooperative phenomena such as ferroelectricity in the 2D limit have not been well explored. Here, we report room-temperature ferroelectricity in 2D CuInP2 S6 (CIPS) with a transition temperature of-1/4320 K. Switchable polarization is observed in thin CIPS of-1/44 nm. To demonstrate the potential of this 2D ferroelectric material, we prepare a van der Waals (vdW) ferroelectric diode formed by CIPS/Si heterostructure, which shows good memory behaviour with on/off ratio of-1/4100. The addition of ferroelectricity to the 2D family opens up possibilities for numerous novel applications, including sensors, actuators, non-volatile memory devices, and various vdW heterostructures based on 2D ferroelectricity.",

author = "Fucai Liu and Lu You and Seyler, {Kyle L.} and Xiaobao Li and Peng Yu and Junhao Lin and Xuewen Wang and Jiadong Zhou and Hong Wang and Haiyong He and Pantelides, {Sokrates T.} and Wu Zhou and Pradeep Sharma and Xiaodong Xu and Ajayan, {Pulickel M.} and Junling Wang and Zheng Liu",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2016.",

year = "2016",

month = aug,

day = "11",

doi = "10.1038/ncomms12357",

language = "英语",

volume = "7",

journal = "Nature Communications",

issn = "2041-1723",

publisher = "Nature Research",

}

TY - JOUR

T1 - Room-temperature ferroelectricity in CuInP 2 S 6 ultrathin flakes

AU - Liu, Fucai

AU - You, Lu

AU - Seyler, Kyle L.

AU - Li, Xiaobao

AU - Yu, Peng

AU - Lin, Junhao

AU - Wang, Xuewen

AU - Zhou, Jiadong

AU - Wang, Hong

AU - He, Haiyong

AU - Pantelides, Sokrates T.

AU - Zhou, Wu

AU - Sharma, Pradeep

AU - Xu, Xiaodong

AU - Ajayan, Pulickel M.

AU - Wang, Junling

AU - Liu, Zheng

PY - 2016/8/11

Y1 - 2016/8/11

N2 - Two-dimensional (2D) materials have emerged as promising candidates for various optoelectronic applications based on their diverse electronic properties, ranging from insulating to superconducting. However, cooperative phenomena such as ferroelectricity in the 2D limit have not been well explored. Here, we report room-temperature ferroelectricity in 2D CuInP2 S6 (CIPS) with a transition temperature of-1/4320 K. Switchable polarization is observed in thin CIPS of-1/44 nm. To demonstrate the potential of this 2D ferroelectric material, we prepare a van der Waals (vdW) ferroelectric diode formed by CIPS/Si heterostructure, which shows good memory behaviour with on/off ratio of-1/4100. The addition of ferroelectricity to the 2D family opens up possibilities for numerous novel applications, including sensors, actuators, non-volatile memory devices, and various vdW heterostructures based on 2D ferroelectricity.

AB - Two-dimensional (2D) materials have emerged as promising candidates for various optoelectronic applications based on their diverse electronic properties, ranging from insulating to superconducting. However, cooperative phenomena such as ferroelectricity in the 2D limit have not been well explored. Here, we report room-temperature ferroelectricity in 2D CuInP2 S6 (CIPS) with a transition temperature of-1/4320 K. Switchable polarization is observed in thin CIPS of-1/44 nm. To demonstrate the potential of this 2D ferroelectric material, we prepare a van der Waals (vdW) ferroelectric diode formed by CIPS/Si heterostructure, which shows good memory behaviour with on/off ratio of-1/4100. The addition of ferroelectricity to the 2D family opens up possibilities for numerous novel applications, including sensors, actuators, non-volatile memory devices, and various vdW heterostructures based on 2D ferroelectricity.

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U2 - 10.1038/ncomms12357

DO - 10.1038/ncomms12357

M3 - 文章

AN - SCOPUS:84982085106

SN - 2041-1723

VL - 7

JO - Nature Communications

JF - Nature Communications

M1 - 12357

ER -

Room-temperature ferroelectricity in CuInP 2 S 6 ultrathin flakes

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