期刊
ACS NANO
卷 11, 期 6, 页码 5325-5331出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b00570
关键词
molecular electronics; graphene; nanoelectrodes; single-electron tunneling
类别
资金
- Clarendon Fund
- European Research Council [320969, 606728]
- UK EPSRC [EP/J015067/1, EP/N017188/1]
- RAEng Research Fellowship
- Engineering and Physical Sciences Research Council [EP/J015067/1, EP/H001972/1, EP/N017188/1, 1655852] Funding Source: researchfish
- EPSRC [EP/J015067/1, EP/N017188/1, EP/H001972/1] Funding Source: UKRI
Graphene provides a two-dimensional platform for contacting individual molecules, which enables transport spectroscopy of molecular orbital, spin, and vibrational states. Here we report single-electron tunneling through a molecule that has been anchored to two graphene leads. Quantum interference within the graphene leads gives rise to an energy-dependent transmission and fluctuations in the sequential tunnel-rates. The lead states are electrostatically tuned by a global back-gate, resulting in a distinct pattern of varying intensity in the measured conductance maps. This pattern could potentially obscure transport features that are intrinsic to the molecule under investigation. Using ensemble averaged magneto-conductance measurements, lead and molecule states are disentangled, enabling spectroscopic investigation of the single molecule.
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