期刊
PHYSICA B-CONDENSED MATTER
卷 554, 期 -, 页码 35-39出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2018.11.024
关键词
Graphene; ReS2; Field effect transistor; 2D materials
资金
- National Natural Science Foundation of China [61471270, 51420105002, 51672193, 51572199]
Atomic thinness, excellent transport property and gate-tunable band structure of graphene render it a potential electrode material for assembling ultra thin electronic devices. Here, we present back gate field effect transistor based on exfoliated monolayer (ML) ReS2 as channel semiconductor and exfoliated ML-graphene as drain-source electrodes. The G and 2D peaks of ML-graphene stiffen significantly and their intensity ratio increases as well when the graphene is encapsulated between the SiO2/Si substrate and ReS2. Owing to the excellent electron transport properties of the ML-ReS2 and gate-tunable Fermi-level of the underlying ML-graphene, the transistor exhibits on/off current ratio exceeding 10(6), mobility of similar to 1.1 cm(2)V(-l)s(-1) and subthreshold swing similar to 740 mV per decade. This work indicates that ML-graphene is an excellent electrode material for fabricating atomically thin ReS2 electronic devices.
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