Reversible Pressure-Induced Partial Phase Transition in Few-Layer Black Phosphorus

Anirban Kundu, Damien Tristant, Natalya Sheremetyeva, Anthony Yoshimura, Abraao Torres Dias, Kiran Shankar Hazra, Vincent Meunier, Pascal Puech

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The experimental identification of structural transitions in layered black phosphorus (BP) under mechanical stress is essential to extend its application in microelectromechanical (MEMS) devices under harsh conditions. High-pressure Raman spectroscopic analysis of BP flakes suggests a transition pressure at ∼4.2 GPa, where the BP's crystal structure progressively transforms from an orthorhombic to a rhombohedral symmetry (blue phosphorus, bP). The phase transition has been identified by observing a transition from blueshift to redshift of the in-plane characteristic Raman modes (B2g and Ag2) with increasing pressure. Recovery of the vibrational frequencies for all three characteristic Raman modes confirms the reversibility of the structural phase transition. First-principles calculations provide insight into the behavior of the Raman modes of BP under high pressure and reveal the mechanism responsible for the partial phase transition from BP to bP, corresponding to a metastable equilibrium state where both phases coexist.

Original languageEnglish (US)
Pages (from-to)5929-5935
Number of pages7
JournalNano letters
Issue number8
StatePublished - Aug 12 2020

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


Dive into the research topics of 'Reversible Pressure-Induced Partial Phase Transition in Few-Layer Black Phosphorus'. Together they form a unique fingerprint.

Cite this