Spectral Characteristics of Noble Metal Nanoparticle–Molybdenum Disulfide Heterostructures
Source abstract
Abstract
Energy and damping of resonances which occur in spectra of monolayer molybdenum disulfide (MoS2) decorated by noble metal nanospheres and prisms are examined by comparing discrete dipole approximation (DDA) simulations and transmission UV–vis measurements. Localized surface plasmon resonance (LSPR) as well as A and B exciton transitions of the semiconductor are characterized individually and in tandem on a silica substrate. Extinction energies for LSPR and direct bandgap transition of MoS2 estimated by DDA are within 2% of measured values for gold nanospheres and silver nanoprisms. Resonant near‐fields mapped at nanoparticle–MoS2 interfaces show plasmon damping via energy dissipation to the MoS2 and direct bandgap excitation. Linewidth analysis of resonant far‐field damping estimates energy transfer efficiencies for putative hot electron transfer, corroborated by experiment. Use of DDA simulations to characterize and inform induction and damping of electric resonance modes in nanoparticle–MoS2 heterostructures is illustrated.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: 2D Materials and Applications · Quantum Dots Synthesis And Properties · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
MicroElectronics‐Photonics Program University of Arkansas Fayetteville AR 72701 USA
Ralph E. Martin Department of Chemical Engineering University of Arkansas Fayetteville AR 72701 USA
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