Substrate effects on the exciton fine structure of black phosphorus quantum dots
Substrate effects on the exciton fine structure of black phosphorus quantum dots
We study the size-dependent exciton fine structure in monolayer black phosphorus quantum dots (BPQDs) deposited on different substrates (isolated, Si, and ${\mathrm{SiO}}_{2}$) using a combination of the tight-binding method to calculate single-particle states and the configuration interaction formalism to determine the excitonic spectrum. We demonstrate that the substrate plays a …