Why Phonon Behaviors in Transition Metal Dichalcogenides Matter

Chenzhang Zhou, Kofi Adu

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Phonons are critical in understanding the electronic, optical and optoelectronic properties of transition metal dichalcogenides (TMDs). The interpretation of lineshapes is important for understanding the effect of specific physical processes on the electronic, optical and optoelectronic properties of TMDs. We employ an analytical approach to investigate the influence of the layered effect, the quantum size effect, the Breit-Wigner-Fano effect, and the inhomogeneous heating effect on the phonon lineshape of TMDs, using WS2 and MoS2 as prototypes. We demonstrate the similarities and differences in how individual processes affect the lineshapes and also the effect of combining processes. Such an approach is useful in guiding the interpretation of the phonon lineshapes of TMDs in particular, and nanostructures in general.

Original languageEnglish (US)
Pages (from-to)629-634
Number of pages6
JournalMRS Advances
Volume4
Issue number10
DOIs
StatePublished - 2019

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Why Phonon Behaviors in Transition Metal Dichalcogenides Matter'. Together they form a unique fingerprint.

  • Cite this