Volume 19, Issue 6 2370036
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Spatial Control of Substitutional Dopants in Hexagonal Monolayer WS2: The Effect of Edge Termination (Small 6/2023)

Tianyi Zhang

Tianyi Zhang

Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

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Mingzu Liu

Mingzu Liu

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

Department of Physics, The Pennsylvania State University, University Park, PA, 16802 USA

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Kazunori Fujisawa

Kazunori Fujisawa

Research Initiative for Supra-Materials, Shinshu University, Nagano, 380–8553 Japan

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Michael Lucking

Michael Lucking

Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, 12180 USA

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Kory Beach

Kory Beach

Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, 12180 USA

Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA, 94550 USA

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Fu Zhang

Fu Zhang

Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

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Maruda Shanmugasundaram

Maruda Shanmugasundaram

HORIBA Instruments Inc, Piscataway, NJ, 08854 USA

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Andrey Krayev

Andrey Krayev

HORIBA Instruments Inc, Novato, CA, 94949 USA

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William Murray

William Murray

Department of Electrical Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

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Yu Lei

Yu Lei

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

Department of Physics, The Pennsylvania State University, University Park, PA, 16802 USA

Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Shenzhen, 518055 China

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Zhuohang Yu

Zhuohang Yu

Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

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David Sanchez

David Sanchez

Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

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Zhiwen Liu

Zhiwen Liu

Department of Electrical Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

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Humberto Terrones

Humberto Terrones

Department of Physics, Applied Physics and Astronomy, Rensselaer Polytechnic Institute, Troy, NY, 12180 USA

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Ana Laura Elías

Ana Laura Elías

Department of Physics, Binghamton University, Binghamton, NY, 13902 USA

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Mauricio Terrones

Mauricio Terrones

Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, 16802 USA

Center for 2-Dimensional and Layered Materials, The Pennsylvania State University, University Park, PA, 16802 USA

Department of Physics, The Pennsylvania State University, University Park, PA, 16802 USA

Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802 USA

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First published: 08 February 2023

Graphical Abstract

The Effect of Edge Termination

In article number 2205800, Humberto Terrones, Ana Laura Elías, Mauricio Terrones, and co-workers demonstrate the importance of atomic edge termination in determining the spatial distribution of substitutional dopants in 2D transition metal dichalcogenide (TMD) hexagonal monolayers. Preferential iron and vanadium doping occurs on the sulfur-terminated edges of the hexagonal monolayers, causing a decrease in photoluminescence intensity and forming binary optical/electrical domains.

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