Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.156802
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Funding
- National Science Foundation [EEC-0832785]
- European Research Council (ERC) [INTIF 226639]
- Science Foundation of Ireland (SFI)
- CRANN
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Studying the reason why single-layer molybdenum disulfide (MoS2) appears to fall short of its promising potential in flexible nanoelectronics, we find that the nature of contacts plays a more important role than the semiconductor itself. In order to understand the nature of MoS2/metal contacts, we perform ab initio density functional theory calculations for the geometry, bonding, and electronic structure of the contact region. We find that the most common contact metal (Au) is rather inefficient for electron injection into single-layer MoS2 and propose Ti as a representative example of suitable alternative electrode materials.
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