材料科学
单层
原子力显微镜
图层(电子)
电荷(物理)
金属
纳米技术
化学物理
冶金
化学
量子力学
物理
作者
Mouhui Yan,Haotian Wang,Wenqi Wei,Tianxiang Zhu,Guanghui Cao,Jianxin Zhong,Wei Ren
出处
期刊:APL Materials
[American Institute of Physics]
日期:2024-08-01
卷期号:12 (8)
摘要
Monolayer and few-layer CoPS3 have been successfully synthesized via an Au-assisted exfoliation technique, with their transport properties subsequently investigated by conductive atomic force microscopy. Rectification effects can be observed in CoPS3 nanosheets due to the Schottky junction formation at the Au/CoPS3 interface, especially in configurations comprising two or more layer flakes. The distinct transport properties between monolayer and few-layer samples demonstrate that the charge transport behavior in the vertical direction is associated with the van der Waals gap. The calculated electron affinity for CoPS3 is about 4.84 eV, as revealed by the thermionic emission model. The results obtained contribute to the knowledge base concerning the transport characteristics of ultrathin MPX3, facilitating further exploration of the transport behavior of these materials and their potential applications in novel electronic devices.
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