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Title: The Atomic Drill Bit: Precision Controlled Atomic Fabrication of 2D Materials

Abstract

Abstract The ability to deterministically fabricate nanoscale architectures with atomic precision is the central goal of nanotechnology, whereby highly localized changes in the atomic structure can be exploited to control device properties at their fundamental physical limit. Here, an automated, feedback‐controlled atomic fabrication method is reported and the formation of 1D–2D heterostructures in MoS 2 is demonstrated through selective transformations along specific crystallographic orientations. The atomic‐scale probe of an aberration‐corrected scanning transmission electron microscope (STEM) is used, and the shape and symmetry of the scan pathway relative to the sample orientation are controlled. The focused and shaped electron beam is used to reliably create Mo 6 S 6 nanowire (MoS‐NW) terminated metallic‐semiconductor 1D–2D edge structures within a pristine MoS 2 monolayer with atomic precision. From these results, it is found that a triangular beam path aligned along the zig‐zag sulfur terminated (ZZS) direction forms stable MoS‐NW edge structures with the highest degree of fidelity without resulting in disordering of the surrounding MoS 2 monolayer. Density functional theory (DFT) calculations and ab initio molecular dynamic simulations (AIMD) are used to calculate the energetic barriers for the most stable atomic edge structures and atomic transformation pathways. These discoveries provide an automated method tomore » improve understanding of atomic‐scale transformations while opening a pathway toward more precise atomic‐scale engineering of materials.« less

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [1];  [4]; ORCiD logo [5]; ORCiD logo [1]; ORCiD logo [6];  [7]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
  2. City Univ. of New York (CUNY), NY (United States). Queens College
  3. Shaanxi University of Science and Technology, Xi'an, Shaanxi (China)
  4. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  5. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Wuhan Univ. (China)
  6. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  7. Institute of Basic Science, Ulsan (Korea, Republic of); Ulsan National Institute of Science and Technology (UNIST), Ulsan (Korea, Republic of)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1996719
Alternate Identifier(s):
OSTI ID: 1958680
Grant/Contract Number:  
AC05-00OR22725; BES-ERCAP0020403
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Materials
Additional Journal Information:
Journal Volume: 35; Journal Issue: 14; Journal ID: ISSN 0935-9648
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Scanning transmission electron microscopy; automated experimentation; electron beam fabrication; nanostructure fabrication; 2D materials

Citation Formats

Boebinger, Matthew G., Brea, Courtney, Ding, Li‐Ping, Misra, Sudhajit, Olunloyo, Olugbenga, Yu, Yiling, Xiao, Kai, Lupini, Andrew R., Ding, Feng, Hu, Guoxiang, Ganesh, Panchapakesan, Jesse, Stephen, and Unocic, Raymond R. The Atomic Drill Bit: Precision Controlled Atomic Fabrication of 2D Materials. United States: N. p., 2023. Web. doi:10.1002/adma.202210116.
Boebinger, Matthew G., Brea, Courtney, Ding, Li‐Ping, Misra, Sudhajit, Olunloyo, Olugbenga, Yu, Yiling, Xiao, Kai, Lupini, Andrew R., Ding, Feng, Hu, Guoxiang, Ganesh, Panchapakesan, Jesse, Stephen, & Unocic, Raymond R. The Atomic Drill Bit: Precision Controlled Atomic Fabrication of 2D Materials. United States. https://doi.org/10.1002/adma.202210116
Boebinger, Matthew G., Brea, Courtney, Ding, Li‐Ping, Misra, Sudhajit, Olunloyo, Olugbenga, Yu, Yiling, Xiao, Kai, Lupini, Andrew R., Ding, Feng, Hu, Guoxiang, Ganesh, Panchapakesan, Jesse, Stephen, and Unocic, Raymond R. Sat . "The Atomic Drill Bit: Precision Controlled Atomic Fabrication of 2D Materials". United States. https://doi.org/10.1002/adma.202210116. https://www.osti.gov/servlets/purl/1996719.
@article{osti_1996719,
title = {The Atomic Drill Bit: Precision Controlled Atomic Fabrication of 2D Materials},
author = {Boebinger, Matthew G. and Brea, Courtney and Ding, Li‐Ping and Misra, Sudhajit and Olunloyo, Olugbenga and Yu, Yiling and Xiao, Kai and Lupini, Andrew R. and Ding, Feng and Hu, Guoxiang and Ganesh, Panchapakesan and Jesse, Stephen and Unocic, Raymond R.},
abstractNote = {Abstract The ability to deterministically fabricate nanoscale architectures with atomic precision is the central goal of nanotechnology, whereby highly localized changes in the atomic structure can be exploited to control device properties at their fundamental physical limit. Here, an automated, feedback‐controlled atomic fabrication method is reported and the formation of 1D–2D heterostructures in MoS 2 is demonstrated through selective transformations along specific crystallographic orientations. The atomic‐scale probe of an aberration‐corrected scanning transmission electron microscope (STEM) is used, and the shape and symmetry of the scan pathway relative to the sample orientation are controlled. The focused and shaped electron beam is used to reliably create Mo 6 S 6 nanowire (MoS‐NW) terminated metallic‐semiconductor 1D–2D edge structures within a pristine MoS 2 monolayer with atomic precision. From these results, it is found that a triangular beam path aligned along the zig‐zag sulfur terminated (ZZS) direction forms stable MoS‐NW edge structures with the highest degree of fidelity without resulting in disordering of the surrounding MoS 2 monolayer. Density functional theory (DFT) calculations and ab initio molecular dynamic simulations (AIMD) are used to calculate the energetic barriers for the most stable atomic edge structures and atomic transformation pathways. These discoveries provide an automated method to improve understanding of atomic‐scale transformations while opening a pathway toward more precise atomic‐scale engineering of materials.},
doi = {10.1002/adma.202210116},
journal = {Advanced Materials},
number = 14,
volume = 35,
place = {United States},
year = {Sat Feb 25 00:00:00 EST 2023},
month = {Sat Feb 25 00:00:00 EST 2023}
}

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