18 Oct 2023
Characterization of black phosphorus as Microstructured Anisotropic 2D Material by Imaging Mueller Matrix Ellipsometry
Thin-film layers of black phosphorus - the most stable allocate of the element
phosphorus - is a promising material for future semiconductor electronics based on
novel 2D-materials. Ultra-thin films or even monolayers of black phosphorus (b-P)
may be fabricated by mechanical exfoliation from bulk material (similar to graphene).
2D-b-P is of particular interest for semiconductor electronics as it features a widely
tunable bandgap via the layer thickness (from ~2 eV for monolayers down to 0.3 eV
for bulk material). Thus, it closes the energy gap between the other known 2D-
materials graphene (zero bandgap) and transition-metal dichalcogenides (bandgap
typically 1-2 eV) such as MoS 2