Dipolar Coupling at Interfaces of Ultrathin Semiconductors, Semimetals, Plasmonic Nanoparticles, and Molecules

Abstract

Recent progress in growth techniques has enabled the fabrication of stacks of transition metal dichalcogenide monolayers combined with different nanostructures ranging from other 2D layers over dye molecules to even plasmonic nanoparticles. Such structures promise to combine the optoelectric properties of the constituents allowing to design structures with desired properties. For all of these examples, a detailed knowledge of the coupling among different constituents is crucial. In this article, a unified description is presented based on Maxwell Bloch equations to describe dipolar interactions among different types of heterostructures. Exemplary, Förster‐type energy transfer from dye molecules to MoS2 monolayers, strong coupling at MoSe2–metal nanoparticle interfaces, Meitner–Auger‐like interlayer coupling in WSe2–graphene stacks, and relaxation processes of hot interlayer excitons in MoSe2–WSe2 heterobilayers are discussed.

Temperature dependent temporal coherence of metallic-nanoparticle-induced single-photon emitters in a WSe2 monolayer

“…The latter stands for a Förster process [37], where the emitter's excitation is non-radiatively passed on to the silver substrate, mediated by the electric nearfield [35,38,39]. The corresponding energy transfer process is sketched in figure 4(c).…”

Syzygium aromaticum Bud Extracted Core–Shell Ag–Fe Bimetallic Nanoparticles: Phytotoxic, Antioxidant, Insecticidal, and Antibacterial Properties

“…Many different types of materials can be used to construct nanoparticles, including ceramics [5], metals [6], polymers [7,8], hydrogels [8,9], and semiconductors [10,11]. These materials have great potential in various domains including photocatalysis [12,13], energy storage [14], gas sensing [15], etc. Nanomaterials, which are so small that they are measured on the nanoscale, often have distinct physical, chemical, and biological characteristics that are distinct from those of their bulk counterparts.…”