Properties of Individual Dopant Atoms in Single-Layer MoS2: Atomic Structure, Migration, and Enhanced Reactivity

Single‐layered MoS2 doped with Re (n‐type) and Au (p‐type) are investigated by in situ scanning transmission electron microscopy. Re atoms substituting Mo sites enhance the local chemical affinity, evidenced by agglomeration of other dopant/impurity atoms. Au atoms exist as adatoms and show larger m...

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Published inAdvanced materials (Weinheim) Vol. 26; no. 18; pp. 2857 - 2861
Main Authors Lin, Yung-Chang, Dumcenco, Dumitru O., Komsa, Hannu-Pekka, Niimi, Yoshiko, Krasheninnikov, Arkady V., Huang, Ying-Sheng, Suenaga, Kazu
Format Journal Article
LanguageEnglish
Published Germany Blackwell Publishing Ltd 01.05.2014
Subjects
adatoms
dopants
MoS2
STEM
two-dimensional materials
dopants
adatoms
two-dimensional materials
MoS2
STEM
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ISSN0935-9648
1521-4095
1521-4095
DOI10.1002/adma.201304985

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Summary:Single‐layered MoS2 doped with Re (n‐type) and Au (p‐type) are investigated by in situ scanning transmission electron microscopy. Re atoms substituting Mo sites enhance the local chemical affinity, evidenced by agglomeration of other dopant/impurity atoms. Au atoms exist as adatoms and show larger mobility under the electron beam. These behaviors are consistent with density functional theory calculations.
Bibliography:ark:/67375/WNG-CXD7TLWL-P
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ArticleID:ADMA201304985
CSC Finland
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:0935-9648
1521-4095
1521-4095
DOI:10.1002/adma.201304985