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. 2018 Mar 23;4(3):eaap9096. doi: 10.1126/sciadv.aap9096

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 4 — (A) Atomic structural model and band alignment for a WSe₂/WS₂ superlattice calculated with the HSE06 functional. Valence band maximum (VBM) and conduction band minimum (CBM) are plotted by black and red lines, respectively. Yellow, S; purple, Se; gray, W. (B) Low-magnification STEM-ADF image showing the formation of parallel MoS₂ quantum wells of a few hundred nanometers long in a MoSe₂ monolayer toward the formation of quantum-well superlattice.