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Properties of Individual Dopant Atoms in Single‐Layer MoS<sub>2</sub>: 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 mobility under the electron beam. These behaviors …