Origin of the phase transition in lithiated molybdenum disulfide

Yingchun Cheng, Anmin Nie, Qingyun Zhang, Liyong Gan, Reza Shahbazian-Yassar, Udo Schwingenschlögl

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

Phase transitions and phase engineering in two-dimensional MoS2 are important for applications in electronics and energy storage. By in situ transmission electron microscopy, we find that H-MoS2 transforms to T-LiMoS2 at the early stages of lithiation followed by the formation of Mo and Li2S phases. The transition from H-MoS2 to T-LiMoS2 is explained in terms of electron doping and electron - phonon coupling at the conduction band minima. Both are essential for the development of two-dimensional semiconductor-metal contacts based on MoS2 and the usage of MoS2 as anode material in Li ion batteries. (Figure Presented).
Original languageEnglish (US)
Pages (from-to)11447-11453
Number of pages7
JournalACS Nano
Volume8
Issue number11
DOIs
StatePublished - Nov 6 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Materials Science(all)
  • Engineering(all)

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