title: Plasmon resonances of highly doped two-dimensional MoS₂.
abstract: 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.
authors.affiliation: School of Electrical and Computer Engineering, RMIT University , Melbourne, Victoria 3000, Australia.
authors.forename: Yichao
authors.initials: Y
authors.lastname: Wang
authors.forename: Jian Zhen
authors.initials: JZ
authors.lastname: Ou
authors.forename: Adam F
authors.initials: AF
authors.lastname: Chrimes
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Carey
authors.forename: Torben
authors.initials: T
authors.lastname: Daeneke
authors.forename: Manal M Y A
authors.initials: MM
authors.lastname: Alsaif
authors.forename: Majid
authors.initials: M
authors.lastname: Mortazavi
authors.forename: Serge
authors.initials: S
authors.lastname: Zhuiykov
authors.forename: Nikhil
authors.initials: N
authors.lastname: Medhekar
authors.forename: Madhu
authors.initials: M
authors.lastname: Bhaskaran
authors.forename: James R
authors.initials: JR
authors.lastname: Friend
authors.forename: Michael S
authors.initials: MS
authors.lastname: Strano
authors.forename: Kourosh
authors.initials: K
authors.lastname: Kalantar-Zadeh
mesh_terms: D004220:Disulfides / Q000737:chemistry*; D008982:Molybdenum / Q000737:chemistry*; D020349:Surface Plasmon Resonance
chemical_list: D004220:Disulfides; D008982:Molybdenum; C082964:molybdenum disulfide
keywords: MoS2; Two-dimensional; biosensor; doping; electrochemical intercalation; plasmonics