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Electrochemical Doping of Two-Dimensional Superatomic Materials.
He, Shoushou; Yu, Jessica; Stinson, William D H; Looney, Claire A; Okuno, Saya; Crowther, Andrew C; Esposito, Daniel V; Steigerwald, Michael L; Roy, Xavier; Nuckolls, Colin.
Afiliación
  • He S; Department of Chemistry, Columbia University, New York, New York 10027, United States.
  • Yu J; Department of Chemistry, Columbia University, New York, New York 10027, United States.
  • Stinson WDH; Department of Chemical Engineering, Columbia University, New York, New York 10027, United States.
  • Looney CA; Department of Chemistry, Barnard College, New York, New York 10027, United States.
  • Okuno S; Department of Chemistry, Columbia University, New York, New York 10027, United States.
  • Crowther AC; Department of Chemistry, Barnard College, New York, New York 10027, United States.
  • Esposito DV; Department of Chemical Engineering, Columbia University, New York, New York 10027, United States.
  • Steigerwald ML; Department of Chemistry, Columbia University, New York, New York 10027, United States.
  • Roy X; Department of Chemistry, Columbia University, New York, New York 10027, United States.
  • Nuckolls C; Department of Chemistry, Columbia University, New York, New York 10027, United States.
J Am Chem Soc ; 146(28): 18861-18865, 2024 Jul 17.
Article en En | MEDLINE | ID: mdl-38959425
ABSTRACT
We report an electrochemical method for doping two-dimensional (2D) superatomic semiconductor Re6Se8Cl2 that significantly improves the material's electrical transport while retaining the in-plane and stacking structures. The electrochemical reduction induces the complete dissociation of chloride anions from the surface of each superatomic nanosheet. After the material is dehalogenated, we observe the electrical conductivity (σ) increases by two orders of magnitude while the 3D electron carrier density (n3D) increases by three orders of magnitude. In addition, the thermal activation energy (Ea) and electron mobility (µe) decrease. We conclude that we have achieved effective electron-doping in 2D superatomic Re6Se8Cl2, which significantly improves the electrical transport properties. Our work sets the foundation for electrochemically doping and tuning the transport properties of other 2D superatomic materials.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos