Noise energy harvesting in buckled BN nanoribbons from molecular dynamics

Miquel López-Suárez, Gabriel Abadal, Luca Gammaitoni, Riccardo Rurali

Research output: Contribution to journalArticleResearchpeer-review

17 Citations (Scopus)

Abstract

© 2015 Elsevier Ltd. We present molecular dynamics calculations of a h-BN nanoribbon designed for vibrational energy harvesting. We calculate the piezoelectric voltage generated at the ends of the device as a function of time and for different levels of an external compressive strain. Through the full atomistic description of the nanoribbon dynamics we demonstrate that driving the system into a non-linear dynamical regime greatly increases its harvesting efficiency. A comparative analysis of the piezo-voltage dependence on the compressive strain, obtained from a previously reported description of the nanoribbon dynamics and from the more accurate molecular dynamics, reveals that the method here presented gives a more precise description of the effect of in-plane vibration of the atoms on the harvesting performance of the device.
Original languageEnglish
Pages (from-to)329-334
JournalNano Energy
Volume15
DOIs
Publication statusPublished - 1 Jul 2015

Keywords

  • Boron nitride
  • Energy harvesting
  • Molecular dynamics
  • Non-linear oscillators

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