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Título:
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Nanoelectrical analysis of single molecules and atomic-scale materials at the solid/liquid interface
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Autores:
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Nirmalraj, Peter ;
Thompson, Damien ;
Molina Ontoria, Agustín ;
Sousa, Marilyne ;
Martín, Nazario ;
Gotsmann, Bernd ;
Riel, Heike
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Tipo de documento:
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texto impreso
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Editorial:
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Nature Publishing Group, 2014-08
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Química: Química orgánica
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Tipo = Artículo
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Resumen:
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Evaluating the built-in functionality of nanomaterials under practical conditions is central for their proposed integration as active components in next-generation electronics. Low-dimensional materials from single atoms to molecules have been consistently resolved and manipulated under ultrahigh vacuum at low temperatures. At room temperature, atomic-scale imaging has also been performed by probing materials at the solid/liquid interface. We exploit this electrical interface to develop a robust electronic decoupling platform that provides precise information on molecular energy levels recorded using in situ scanning tunnelling microscopy/spectroscopy with high spatial and energy resolution in a high-density liquid environment. Our experimental findings, supported by ab initio electronic structure calculations and atomic-scale molecular dynamics simulations, reveal direct mapping of single-molecule structure and resonance states at the solid/liquid interface.We further extend this approach to resolve the electronic structure of graphene monolayers at atomic length scales under standard room-temperature operating conditions.
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En línea:
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https://eprints.ucm.es/id/eprint/36418/1/Nature%20Materials%2C%202014%2C%2013%2C%20947-953.pdf
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