Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes
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. H...
| Main Authors: | , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/89161 http://hdl.handle.net/10220/44810 |
| _version_ | 1826113740877070336 |
|---|---|
| author | Liu, Fucai You, Lu Seyler, Kyle L. Li, Xiaobao Yu, Peng Lin, Junhao Wang, Xuewen Zhou, Jiadong Wang, Hong He, Haiyong Pantelides, Sokrates T. Zhou, Wu Sharma, Pradeep Xu, Xiaodong Ajayan, Pulickel M. Wang, Junling Liu, Zheng |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Liu, Fucai You, Lu Seyler, Kyle L. Li, Xiaobao Yu, Peng Lin, Junhao Wang, Xuewen Zhou, Jiadong Wang, Hong He, Haiyong Pantelides, Sokrates T. Zhou, Wu Sharma, Pradeep Xu, Xiaodong Ajayan, Pulickel M. Wang, Junling Liu, Zheng |
| author_sort | Liu, Fucai |
| collection | NTU |
| description | 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 CuInP2S6 (CIPS) with a transition temperature of ∼320 K. Switchable polarization is observed in thin CIPS of ∼4 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 ∼100. 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. |
| first_indexed | 2024-10-01T03:28:10Z |
| format | Journal Article |
| id | ntu-10356/89161 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:28:10Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/891612023-07-14T16:04:47Z Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes Liu, Fucai You, Lu Seyler, Kyle L. Li, Xiaobao Yu, Peng Lin, Junhao Wang, Xuewen Zhou, Jiadong Wang, Hong He, Haiyong Pantelides, Sokrates T. Zhou, Wu Sharma, Pradeep Xu, Xiaodong Ajayan, Pulickel M. Wang, Junling Liu, Zheng School of Electrical and Electronic Engineering School of Materials Science & Engineering Centre for Programmable Materials Nanoelectronics Centre of Excellence CINTRA CNRS/NTU/THALES Ferroelectrics And Multiferroics Information Storage 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 CuInP2S6 (CIPS) with a transition temperature of ∼320 K. Switchable polarization is observed in thin CIPS of ∼4 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 ∼100. 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-05-16T09:06:43Z 2019-12-06T17:19:14Z 2018-05-16T09:06:43Z 2019-12-06T17:19:14Z 2016 Journal Article Liu, F., You, L., Seyler, K. L., Li, X., Yu, P., Lin, J., et al. (2016). Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes. Nature Communications, 7, 12357-. https://hdl.handle.net/10356/89161 http://hdl.handle.net/10220/44810 10.1038/ncomms12357 27510418 en Nature Communications © 2016 The Author(s) (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ 6 p. application/pdf |
| spellingShingle | Ferroelectrics And Multiferroics Information Storage Liu, Fucai You, Lu Seyler, Kyle L. Li, Xiaobao Yu, Peng Lin, Junhao Wang, Xuewen Zhou, Jiadong Wang, Hong He, Haiyong Pantelides, Sokrates T. Zhou, Wu Sharma, Pradeep Xu, Xiaodong Ajayan, Pulickel M. Wang, Junling Liu, Zheng Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes |
| title | Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes |
| title_full | Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes |
| title_fullStr | Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes |
| title_full_unstemmed | Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes |
| title_short | Room-temperature ferroelectricity in CuInP2S6 ultrathin flakes |
| title_sort | room temperature ferroelectricity in cuinp2s6 ultrathin flakes |
| topic | Ferroelectrics And Multiferroics Information Storage |
| url | https://hdl.handle.net/10356/89161 http://hdl.handle.net/10220/44810 |
| work_keys_str_mv | AT liufucai roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT youlu roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT seylerkylel roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT lixiaobao roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT yupeng roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT linjunhao roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT wangxuewen roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT zhoujiadong roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT wanghong roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT hehaiyong roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT pantelidessokratest roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT zhouwu roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT sharmapradeep roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT xuxiaodong roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT ajayanpulickelm roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT wangjunling roomtemperatureferroelectricityincuinp2s6ultrathinflakes AT liuzheng roomtemperatureferroelectricityincuinp2s6ultrathinflakes |