Citation: GE Jing, SONG Xian-Jiang, DU Guo-Wei, LI Hao-Jie, YOU Yu-Meng. Plasma-Assisted Fabrication of Ferroelectric Flakes with Single-Unit-Cell Thickness and Characterization of Ferroelectricity[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(6): 1163-1168. doi: 10.11862/CJIC.2020.128 shu

Plasma-Assisted Fabrication of Ferroelectric Flakes with Single-Unit-Cell Thickness and Characterization of Ferroelectricity

School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China

Corresponding author: YOU Yu-Meng, youyumeng@seu.edu.cn
Received Date: 9 March 2020
Revised Date: 13 April 2020

Figures(3)

Here, we report a successful method to fabricate a 2D bis(benzylammonium) lead tetrachloride (A₂PbCl₄) flake with a thickness of 3.6 nm by a combination of mechanical exfoliation and an Ar⁺ plasma thinning process. Piezoresponse force microscopy (PFM) measurements reveal that the ferroelectricity of the A₂PbCl₄ flakes with single-unit-cell thickness persists after Ar⁺ plasma etching.
- A₂PbCl₄ flakes,
- ferroelectricity,
- Ar⁺ Plasma etching
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