Origin of the phase transition in lithiated molybdenum disulfide

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

doi:10.1021/nn505668c

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 journal › Article › peer-review

113 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 language	English (US)
Pages (from-to)	11447-11453
Number of pages	7
Journal	ACS Nano
Volume	8
Issue number	11
DOIs	https://doi.org/10.1021/nn505668c
State	Published - Nov 6 2014

ASJC Scopus subject areas

General Physics and Astronomy
General Materials Science
General Engineering

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title = "Origin of the phase transition in lithiated molybdenum disulfide",

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).",

author = "Yingchun Cheng and Anmin Nie and Qingyun Zhang and Liyong Gan and Reza Shahbazian-Yassar and Udo Schwingenschl{\"o}gl",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST).",

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T1 - Origin of the phase transition in lithiated molybdenum disulfide

AU - Cheng, Yingchun

AU - Nie, Anmin

AU - Zhang, Qingyun

AU - Gan, Liyong

AU - Shahbazian-Yassar, Reza

AU - Schwingenschlögl, Udo

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST).

PY - 2014/11/6

Y1 - 2014/11/6

N2 - 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).

AB - 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).

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Origin of the phase transition in lithiated molybdenum disulfide

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