Electronic Properties of Phosphorene Nanostructures

Phosphorene nanostructures exhibit a rich array of electronic behaviours arising from their puckered honeycomb lattice and quantum-confined geometries. The direct band gap of phosphorene can be tuned by layer thickness, ribbon width and edge orientation, while its intrinsic anisotropy yields markedly different carrier mobilities along armchair and zigzag directions. Edge engineering and chemical functionalisation introduce localized states that can drive transitions between semiconducting, metallic, magnetic and half-metallic phases. External stimuli such as strain, electric field and controlled doping further modulate the band structure, enabling negative differential resistance, phase-controlled magnetism and spin-polarised transport. These combined features underpin the promise of phosphorene nanostructures for next-generation field-effect transistors, nanoscale spintronic elements and chemical sensors.

Research from Nature Portfolio

Recent studies have revealed the emergence of half-metallic behaviour in zigzag phosphorene nanoribbons upon selective edge functionalisation and oxidation, with phase control achieved via transverse in-plane electric fields and functional group ratios. Investigations into doped armchair nanoribbons demonstrate that group IV element substitution and edge passivation can induce semiconductor-to-metal transitions and robust negative differential resistance phenomena, offering pathways to low-power electronic switches. In tilted nanoribbons, external electric fields and oxygen passivation have been shown to switch the magnetic ground state from antiferromagnetic to ferromagnetic, while achieving half-metallicity at accessible field strengths, signalling potential for nanoscale spintronic integration.

Electronic Properties of Phosphorene Nanostructures publication trend

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

Technical terms

Band gap: Energy difference between the valence band and conduction band determining a material’s electronic phase.

Half-metallicity: A state in which electrons of one spin orientation conduct while the opposite spin remains insulating.

Edge states: Electronic states localised at the boundaries of a nanostructure arising from termination of the crystal lattice.

Anisotropy: Variation of physical properties, such as conductivity or effective mass, with crystallographic direction.

References

1. Highly anisotropic physics in phosphorene. Journal of Physics Conference Series (2015).
2. Chemical modifications and stability of phosphorene with impurities: a first principles study. Physical Chemistry Chemical Physics (2015).
3. Modulation of electronic transport properties in armchair phosphorene nanoribbons by doping and edge passivation. Scientific Reports (2017).
4. Half metal phase in the zigzag phosphorene nanoribbon. Scientific Reports (2018).
5. Ferromagnetism controlled by electric field in tilted phosphorene nanoribbon. Scientific Reports (2016).
6. Tailoring Two-Dimensional Matter Using Strong Light–Matter Interactions. Nano Letters (2023).
7. Electronic and Transport Properties of Bilayer Phosphorene Nanojunction: Effect of Paired Substitution Doping. ACS Applied Electronic Materials (2021).
8. Adsorption of Transition Metals on Black Phosphorene: a First-Principles Study. Discover Nano (2018).
9. Nitrogen-based gas molecule adsorption of monolayer phosphorene under metal functionalization. Scientific Reports (2019).