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BP: Fachverband Biologische Physik

BP 14: Poster Session II

BP 14.66: Poster

Dienstag, 10. März 2026, 18:00–21:00, P2

Electronic and structural properties of (doped) bilayer systems of graphene and molybdenene — •Sabrina Smid — RWTH Aachen, Worringer Weg 3, 52074 Aachen

Two-dimensional (2D) materials have attracted intense interest since the discovery of semi-metallic graphene in 2004. Owing to its exceptional electronic, thermal, and mechanical properties, graphene has become a key platform for exploring van der Waals (vdW) heterostructures. Stacking different 2D crystals enables emergent phenomena absent in the isolated layers, as exemplified by graphene encapsulated in hexagonal boron nitride, where interfacial screening enhances carrier mobility. The introduction of twist angles in such heterostructures has further unlocked new electronic behavior, including flat-band correlated states in twisted bilayer graphene.

Recently, the emergence of metallic molybdenene, synthesized via microwave-assisted exfoliation of MoS₂, has further expanded the 2D materials landscape. Its intrinsic metallic character and tunable properties in vdW architectures suggest promising opportunities for heterostructure engineering. Motivated by this, we additionally perform density-functional theory calculations on a vdW bilayer composed of semi-metallic graphene and metallic molybdenene, examining how twist angle and carrier doping modify its structural and electronic properties.

Keywords: bilayer graphene; bilayer molybdenene; DFT; structural properties; electronic properties