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Remote Passivation in Two-Dimensional Materials: The Case of the Monolayer-Bilayer Lateral Junction of MoSe2.
Han, Nannan; Xie, Weiyu; Zhang, Junfeng; Liu, Lizhao; Zhao, Jijun; West, Damien; Zhang, Shengbai.
Afiliación
  • Han N; Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
  • Xie W; Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, China.
  • Zhang J; Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy 12180, United States.
  • Liu L; China Academy of Engineering Physics Institute of Chemical Materials, Mianyang 621999, China.
  • Zhao J; School of Physics and Information Engineering, Shanxi Normal University, Linfen 041004, China.
  • West D; Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, China.
  • Zhang S; Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, China.
J Phys Chem Lett ; 12(33): 8046-8052, 2021 Aug 26.
Article en En | MEDLINE | ID: mdl-34433273
Two-dimensional (2D) monolayer-bilayer (ML-BL) lateral junctions (LJs) have recently attracted attention due to their straightforward synthesis and resulting clean interface. Such systems consist of an extended ML with a secondary layer present only over half of the system, leading to an interface that is associated with the terminating edge of the secondary half layer. Our first-principles calculations reveal that the edges of the half layer completely lack reconstruction in the presence of unintentional dopants, in this case, Re. This observation is in startling contrast to the known physics of three-dimensional (3D) semiconductor surfaces where reconstruction has been widely observed. Herein, the electrostatics of the reduced dimensionality allows for greater separation between compensating defects, enabling dopants to remotely passivate edge states without needing to directly participate in the chemistry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem Lett Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Phys Chem Lett Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos