MoS                         2                          Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS                         2                          Transfer

Jiwoong Yang; Moon Kee Choi; Yuewen Sheng; Jaebong Jung; Karen Bustillo; Tongxin Chen; Seung Wuk Lee; Peter Ercius; Ji Hoon Kim; Jamie H. Warner; Emory M. Chan; Haimei Zheng

doi:10.1021/acs.nanolett.8b04821

MoS ₂ Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS ₂ Transfer

Jiwoong Yang, Moon Kee Choi, Yuewen Sheng, Jaebong Jung, Karen Bustillo, Tongxin Chen, Seung Wuk Lee, Peter Ercius, Ji Hoon Kim, Jamie H. Warner, Emory M. Chan, Haimei Zheng

Department of Energy and Science and Engineering

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

Two dimensional (2D) materials have found various applications because of their unique physical properties. For example, graphene has been used as the electron transparent membrane for liquid cell transmission electron microscopy (TEM) due to its high mechanical strength and flexibility, single-atom thickness, chemical inertness, etc. Here, we report using 2D MoS ₂ as a functional substrate as well as the membrane window for liquid cell TEM, which is enabled by our facile and polymer-free MoS ₂ transfer process. This provides the opportunity to investigate the growth of Pt nanocrystals on MoS ₂ substrates, which elucidates the formation mechanisms of such heterostructured 2D materials. We find that Pt nanocrystals formed in MoS ₂ liquid cells have a strong tendency to align their crystal lattice with that of MoS ₂ , suggesting a van der Waals epitaxial relationship. Importantly, we can study its impact on the kinetics of the nanocrystal formation. The development of MoS ₂ liquid cells will allow further study of various liquid phenomena on MoS ₂ , and the polymer-free MoS ₂ transfer process will be implemented in a wide range of applications.

Original language	English
Pages (from-to)	1788-1795
Number of pages	8
Journal	Nano Letters
Volume	19
Issue number	3
DOIs	https://doi.org/10.1021/acs.nanolett.8b04821
State	Published - 13 Mar 2019

Bibliographical note

Publisher Copyright:
© Copyright 2019 American Chemical Society.

Keywords

Liquid cell electron microscopy
MoS
heterostructures
nanocrystal formation
polymer-free transfer

Access to Document

10.1021/acs.nanolett.8b04821

Cite this

Yang, J., Choi, M. K., Sheng, Y., Jung, J., Bustillo, K., Chen, T., Lee, S. W., Ercius, P., Kim, J. H., Warner, J. H., Chan, E. M., & Zheng, H. (2019). MoS ₂ Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS ₂ Transfer Nano Letters, 19(3), 1788-1795. https://doi.org/10.1021/acs.nanolett.8b04821

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title = " MoS 2 Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS 2 Transfer ",

abstract = " Two dimensional (2D) materials have found various applications because of their unique physical properties. For example, graphene has been used as the electron transparent membrane for liquid cell transmission electron microscopy (TEM) due to its high mechanical strength and flexibility, single-atom thickness, chemical inertness, etc. Here, we report using 2D MoS 2 as a functional substrate as well as the membrane window for liquid cell TEM, which is enabled by our facile and polymer-free MoS 2 transfer process. This provides the opportunity to investigate the growth of Pt nanocrystals on MoS 2 substrates, which elucidates the formation mechanisms of such heterostructured 2D materials. We find that Pt nanocrystals formed in MoS 2 liquid cells have a strong tendency to align their crystal lattice with that of MoS 2 , suggesting a van der Waals epitaxial relationship. Importantly, we can study its impact on the kinetics of the nanocrystal formation. The development of MoS 2 liquid cells will allow further study of various liquid phenomena on MoS 2 , and the polymer-free MoS 2 transfer process will be implemented in a wide range of applications.",

keywords = "Liquid cell electron microscopy, MoS, heterostructures, nanocrystal formation, polymer-free transfer",

author = "Jiwoong Yang and Choi, {Moon Kee} and Yuewen Sheng and Jaebong Jung and Karen Bustillo and Tongxin Chen and Lee, {Seung Wuk} and Peter Ercius and Kim, {Ji Hoon} and Warner, {Jamie H.} and Chan, {Emory M.} and Haimei Zheng",

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Yang, J, Choi, MK, Sheng, Y, Jung, J, Bustillo, K, Chen, T, Lee, SW, Ercius, P, Kim, JH, Warner, JH, Chan, EM & Zheng, H 2019, ' MoS ₂ Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS ₂ Transfer ', Nano Letters, vol. 19, no. 3, pp. 1788-1795. https://doi.org/10.1021/acs.nanolett.8b04821

MoS ₂ Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS ₂ Transfer . / Yang, Jiwoong; Choi, Moon Kee; Sheng, Yuewen et al.
In: Nano Letters, Vol. 19, No. 3, 13.03.2019, p. 1788-1795.

Research output: Contribution to journal › Article › peer-review

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T1 - MoS 2 Liquid Cell Electron Microscopy Through Clean and Fast Polymer-Free MoS 2 Transfer

AU - Yang, Jiwoong

AU - Choi, Moon Kee

AU - Sheng, Yuewen

AU - Jung, Jaebong

AU - Bustillo, Karen

AU - Chen, Tongxin

AU - Lee, Seung Wuk

AU - Ercius, Peter

AU - Kim, Ji Hoon

AU - Warner, Jamie H.

AU - Chan, Emory M.

AU - Zheng, Haimei

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N2 - Two dimensional (2D) materials have found various applications because of their unique physical properties. For example, graphene has been used as the electron transparent membrane for liquid cell transmission electron microscopy (TEM) due to its high mechanical strength and flexibility, single-atom thickness, chemical inertness, etc. Here, we report using 2D MoS 2 as a functional substrate as well as the membrane window for liquid cell TEM, which is enabled by our facile and polymer-free MoS 2 transfer process. This provides the opportunity to investigate the growth of Pt nanocrystals on MoS 2 substrates, which elucidates the formation mechanisms of such heterostructured 2D materials. We find that Pt nanocrystals formed in MoS 2 liquid cells have a strong tendency to align their crystal lattice with that of MoS 2 , suggesting a van der Waals epitaxial relationship. Importantly, we can study its impact on the kinetics of the nanocrystal formation. The development of MoS 2 liquid cells will allow further study of various liquid phenomena on MoS 2 , and the polymer-free MoS 2 transfer process will be implemented in a wide range of applications.

AB - Two dimensional (2D) materials have found various applications because of their unique physical properties. For example, graphene has been used as the electron transparent membrane for liquid cell transmission electron microscopy (TEM) due to its high mechanical strength and flexibility, single-atom thickness, chemical inertness, etc. Here, we report using 2D MoS 2 as a functional substrate as well as the membrane window for liquid cell TEM, which is enabled by our facile and polymer-free MoS 2 transfer process. This provides the opportunity to investigate the growth of Pt nanocrystals on MoS 2 substrates, which elucidates the formation mechanisms of such heterostructured 2D materials. We find that Pt nanocrystals formed in MoS 2 liquid cells have a strong tendency to align their crystal lattice with that of MoS 2 , suggesting a van der Waals epitaxial relationship. Importantly, we can study its impact on the kinetics of the nanocrystal formation. The development of MoS 2 liquid cells will allow further study of various liquid phenomena on MoS 2 , and the polymer-free MoS 2 transfer process will be implemented in a wide range of applications.

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