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Title: Compliant substrate epitaxy: Au on MoS 2

Journal Article · · Physical Review B
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

A theory for the epitaxial growth of Au on MoS2 is developed and analyzed. The theory combines continuum linear elasticity theory with density functional theory to analyze epitaxial growth in this system. It is demonstrated that if one accounts for interfacial energies and strains, the presence of misfit dislocations, and the compliance of the MoS2 substrate, the experimentally observed growth orientation is favored despite the fact that it represents a larger elastic mismatch than two competing structures. The stability of the experimentally preferred orientation is attributed to the formation of a large number of strong Au-S bonds, and it is noted that this strong bond may serve as a means to exfoliate and transfer large single layers sheets of MoS2, as well as to engineer strain within single layers of MoS2. The potential for using a van der Waals-bonded layered material as a compliant substrate for applications in 2D electronic devices and epitaxial thin film growth is discussed.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1633219
Alternate ID(s):
OSTI ID: 1237112
Journal Information:
Physical Review B, Vol. 93, Issue 5; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (22)

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Cited By (4)

Phase transition and electronic structure investigation of MoS 2 -reduced graphene oxide nanocomposite decorated with Au nanoparticles journal September 2019
Gold-Mediated Exfoliation of Ultralarge Optoelectronically-Perfect Monolayers journal March 2016
2D materials advances: from large scale synthesis and controlled heterostructures to improved characterization techniques, defects and applications journal December 2016
Tunable phase stability and contact resistance of monolayer transition metal dichalcogenides contacts with metal journal May 2018

Figures / Tables (9)


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