Graphene Interfaces and Electronic Properties

Graphene’s exceptional electronic characteristics arise from its two-dimensional carbon lattice and the linear dispersion of its π-bands, which converge at the Dirac point. At interfaces, interactions with substrates, intercalated species or adjacent layers can modify band structure, induce energy gaps and generate novel quasiparticles. Control of adsorption height, moiré superlattice geometry and interfacial hybridisation enables tuning of charge transfer, spin properties and transport behaviour. These effects underpin applications in high-speed transistors, spin filters and sensor platforms. Recent advances have explored the interplay between structural registry and electronic modulations, offering tailored pathways to exploit graphene’s unique conductivity, magnetism and catalytic potential at engineered interfaces.

Research from Nature Portfolio

Universal frameworks for classifying twisted, strained and sheared graphene moiré superlattices have provided an analytic description of commensurate phases across any hexagonal support surface. By combining high-resolution scanning tunnelling microscopy with symmetry-based modelling, researchers have resolved supercells containing thousands of atoms and mapped out the exact conditions for first, second and higher-order coincidence lattices. This formalism unifies moiré geometries observed on diverse substrates and informs the rational design of interface-induced electronic reconstructions, such as replica Dirac cones and miniband formation, with implications for tunable bandgaps and correlated electron phases.

Graphene Interfaces and Electronic Properties publication trend

The graph below shows the total number of articles in graphene interfaces and electronic properties across all publications each year (not limited to Nature Index journals).

Technical terms

Moiré superlattice: A large-scale interference pattern formed when two periodic lattices are overlaid with a rotational or lattice mismatch, leading to new periodicities.

Dirac point: The location in momentum space where graphene’s conduction and valence π-bands meet, characterised by massless charge carriers and linear dispersion.

Flat band: An electronic band with minimal dispersion, producing a high density of states that can favour correlated electron phenomena.

Spin polarisation: The imbalance in population of spin-up and spin-down electrons, which can be induced at interfaces for spintronic applications.

Angle-resolved photoemission spectroscopy (ARPES): An experimental technique that maps the energy and momentum of electrons emitted from a material, revealing its band structure.

Density functional theory (DFT): A quantum mechanical modelling method employed to calculate electronic structure by treating electron density as the central variable.

References

1. Universal classification of twisted, strained and sheared graphene moiré superlattices. Scientific Reports (2016).
2. Inducing Single Spin‐Polarized Flat Bands in Monolayer Graphene. Advanced Materials (2023).
3. Structure of Graphene Grown on Cu(111): X-Ray Standing Wave Measurement and Density Functional Theory Prediction. Physical Review Letters (2024).
4. Exploring 2D materials at surfaces through synchrotron-based core-level photoelectron spectroscopy. Surface Science Reports (2023).