Journal
NANO LETTERS
Volume 15, Issue 2, Pages 883-890Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl503563g
Keywords
Two-dimensional; MoS2; plasmonics; doping; electrochemical intercalation; biosensor
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Funding
- Australian Research Council (ARC) [DP140100170]
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The exhibition of plasmon resonances in two-dimensional (2D) semiconductor compounds is desirable for many applications. Here, by electrochemically intercalating lithium into 2D molybdenum disulfide (MoS2) nanoflakes, plasmon resonances in the visible and near UV wavelength ranges are achieved. These plasmon resonances are controlled by the high doping level of the nanoflakes after the intercalation, producing two distinct resonance peak areas based on the crystal arrangements. The system is also benchmarked for biosensing using bovine serum albumin. This work provides a foundation for developing future 2D MoS2 based biological and optical units.
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