New Phosphorene Allotropes Containing Ridges with 2- and 4-Coordination

Jie Liu, Yaguang Guo, Shunhong Zhang, Qian Wang, Yoshiyuki Kawazoe, Puru Jena

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In all of the phosphorus monolayers reported to date, phosphorus is 3-fold coordinated. However, flexible chemistry of phosphorus allows it to have varying coordination number up to 6. Here, we report three new phosphorus monolayers (labeled α-P6, β-P6, and 558-P6) having 2-, 3-, and 4-fold coordination, which can be observed in epitaxial growth where flakes merge forming ridges at the boundaries. On the basis of state-of-the-art theoretical simulations, we show that these three new monolayer allotropes are thermally and dynamically stable, and they have comparable energetic stability with some reported monolayers such as δ-P, γ-P, and ε-P. Because of their special atomic configurations, they exhibit exceptional properties, including extremely high electron mobility, anisotropic Young's moduli, and optical absorbance in visible and ultraviolet regions. These findings can extend the family of phosphorenes with novel properties and potential for applications.

Original languageEnglish
Pages (from-to)24674-24680
Number of pages7
JournalJournal of Physical Chemistry C
Volume119
Issue number43
DOIs
Publication statusPublished - 2015 Oct 7

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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    Liu, J., Guo, Y., Zhang, S., Wang, Q., Kawazoe, Y., & Jena, P. (2015). New Phosphorene Allotropes Containing Ridges with 2- and 4-Coordination. Journal of Physical Chemistry C, 119(43), 24674-24680. https://doi.org/10.1021/acs.jpcc.5b08593