期刊
JOURNAL OF MATERIALS SCIENCE
卷 55, 期 10, 页码 4321-4331出版社
SPRINGER
DOI: 10.1007/s10853-019-04286-x
关键词
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资金
- National Natural Science Foundation of China [11704008, 91964101, 11674005]
- Basic Scientific Research Foundation of Beijing Municipal Education Commission [110052971803/031]
- Support Plan of Yuyou Youth and Yuyou Innovation Team of North China University of Technology
Van der Waals (vdW) type metallic/semiconducting heterostructures have attracted much attention for applications like nanoelectronics. The electronic properties of graphene/SnSe2 vdW heterostructure are investigated by the first-principles calculation. The band dispersions of both the graphene and SnSe2 layers are well preserved in the graphene/SnSe2 vdW heterostructure. Notably, n-type Ohmic contact is found at the graphene/SnSe2 vdW interface so that graphene is a fantastic electrode for the SnSe2 Schottky barrier field-effect transistor (SBFET). The on-state current of the 10-nm-gate-long ML SnSe2 SBFET with graphene electrode is 1535 mu A/lm for high-performance (HP) application, which is twice that of the ML MoS2 SBFET with bulk Ti electrode and exceeds the requirement of the International Technology Roadmap for Semiconductors for HP devices.
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