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Preparation and Use of Carbonyl-decorated Carbenes in the Activation of White Phosphorus

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Phosphorene under electron beam: from monolayer to one-dimensional chains.

Ville Vierimaa¹, Arkady V Krasheninnikov², Hannu-Pekka Komsa¹

¹COMP, Department of Applied Physics, Aalto University, P.O. Box 1100, 00076 Aalto, Finland. hannu-pekka.komsa@aalto.fi.

|March 24, 2016

Summary

This study investigates electron irradiation effects on phosphorene, a 2D material. Energetic electrons can create defects, but P atomic chains remain stable, showing potential for nanostructure engineering.

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Low-energy Cathodoluminescence for OxyNitride Phosphors

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Published on: November 15, 2016

Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Phosphorene, a single sheet of black phosphorus, is a 2D material with unique electronic properties.
Understanding its response to electron irradiation is crucial for nanostructure fabrication.

Purpose of the Study:

To investigate defect production in phosphorene under electron irradiation.
To assess the stability of phosphorene nanostructures under electron beams.

Main Methods:

First-principles simulations were used to model defect formation.
The McKinley-Feshbach formalism and atomic thermal motion were incorporated.
Atom displacement cross-sections were calculated as a function of electron energy.

Main Results:

Energetic electrons can induce point defects in phosphorene.
Phosphorene ribbons and edges exhibit stability under electron irradiation.
Phosphorus atomic chains are surprisingly stable and non-linear, lacking an electronic band gap.

Conclusions:

Electron irradiation can engineer phosphorene nanostructures by creating controlled defects.
The inherent stability of phosphorene atomic chains offers new avenues for electronic applications.