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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Khan, M. Farooq Seo, Yongho Eom, Jonghwa Nazir, Ghazanfar Iqbal, M. Waqas Iqbal, M. Zahir Shehzad, M. Arslan |
| Copyright Year | 2017 |
| Abstract | Two-dimensional layered materials, such as graphene (Gr) and molybdenum disulfide (MoS2), have become fascinating and exciting candidates for next-generation electronic device materials. Their vertical combinations have led to novel electronic and photonic devices. We fabricated vertical field-effect transistors (FETs) with h-BN/Gr/MoS2/Mo multi-heterostructures. A facile route was followed to design high-quality vertical FETs with improved performance. MoS2 was directly transferred to SiO2/h-BN/Gr without using any polymer, which produced a clean interface between Gr and MoS2. A high current ON–OFF ratio of ∼106 was demonstrated with a high current density of ∼105 A cm−2. Our results were attributed to the high-quality bottom Gr on h-BN, the top-most molybdenum metal contact, and the clean interface between Gr and MoS2. The photoresponse of vertical FETs was also investigated under deep ultraviolet irradiation. The current density and photocurrent response of these vertical devices were strongly dependent on the back-gate voltage. |
| Starting Page | 2337 |
| Ending Page | 2343 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 20507526 |
| Volume Number | 5 |
| Issue Number | 9 |
| Journal | Journal of Materials Chemistry C |
| DOI | 10.1039/c6tc04716e |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Graphene Molybdenum disulfide Polymer Electric current Molybdenum Ultraviolet Photocurrent |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry |
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