Please view the posters presented at the 19th Annual City Tech Faculty and Student Research Poster Session below. You can click on each poster to enlarge it and view the PDF version under the poster abstract.
We thank all presenters for sharing their innovative and informative research with the City Tech community and beyond!
39-Magnetoexcitons in phosphorene monolayers, bilayer, and van der Walls double-layer heterostructures
We study direct and indirect magnetoexcitons in Rydberg states in phosphorene monolayers, bilayer, and van der Waals heterostructure in an external magnetic field applied perpendicular to the monolayer or heterostructure within the framework of the effective mass approximation. Binding energies of magnetoexcitons are calculated by numerical integration of the Schrödinger equation using the Rytova-Keldysh potential for direct magnetoexcitons and both the Rytova-Keldysh and Coulomb potentials for the indirect one. We report exciton binding energies (EB), the energy contribution from the magnetic field to binding energies, and diamagnetic coefficients (DMCs) and show that they strongly depend on the effective masses of electron and hole. We demonstrate that phosphorene is a novel category of 2D semiconductors where EB and DMCs can be tuned by the magnetic field and the system design. View or download a PDF version of this poster.
