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Voltage-Driven Conformational Switching with Distinct Raman Signature in a Single-Molecule Junction.
Bi, Hai; Palma, Carlos-Andres; Gong, Yuxiang; Hasch, Peter; Elbing, Mark; Mayor, Marcel; Reichert, Joachim; Barth, Johannes V.
Afiliación
  • Bi H; Physics Department E20 , Technical University of Munich , James-Franck-Str. 1 , 85748 Garching , Germany.
  • Palma CA; Physics Department E20 , Technical University of Munich , James-Franck-Str. 1 , 85748 Garching , Germany.
  • Gong Y; Institute of Physics , Chinese Academy of Sciences , 100190 Beijing , P.R. China.
  • Hasch P; Physics Department E20 , Technical University of Munich , James-Franck-Str. 1 , 85748 Garching , Germany.
  • Elbing M; Physics Department E20 , Technical University of Munich , James-Franck-Str. 1 , 85748 Garching , Germany.
  • Mayor M; Department of Applied Natural Sciences , Lübeck University of Applied Sciences , Mönkhofer Weg 239 , 23562 Lübeck , Germany.
  • Reichert J; Institute of Nanotechnology (INT) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Karlsruhe , Germany.
  • Barth JV; Department of Chemistry , University of Basel , St Johannsring 19 , CH-4056 Basel , Switzerland.
J Am Chem Soc ; 140(14): 4835-4840, 2018 04 11.
Article en En | MEDLINE | ID: mdl-29565575
Precisely controlling well-defined, stable single-molecule junctions represents a pillar of single-molecule electronics. Early attempts to establish computing with molecular switching arrays were partly challenged by limitations in the direct chemical characterization of metal-molecule-metal junctions. While cryogenic scanning probe studies have advanced the mechanistic understanding of current- and voltage-induced conformational switching, metal-molecule-metal conformations are still largely inferred from indirect evidence. Hence, the development of robust, chemically sensitive techniques is instrumental for advancement in the field. Here we probe the conformation of a two-state molecular switch with vibrational spectroscopy, while simultaneously operating it by means of the applied voltage. Our study emphasizes measurements of single-molecule Raman spectra in a room-temperature stable single-molecule switch presenting a signal modulation of nearly 2 orders of magnitude.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Am Chem Soc Año: 2018 Tipo del documento: Article País de afiliación: Alemania 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 Am Chem Soc Año: 2018 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos