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Título: | Band formation from coupled quantum dots formed by a nanoporous network on a copper surface |
Autor: | Lobo-Checa, Jorge CSIC ORCID ; Matena, Manfred; Müller, Kathrin; Dil, J. Hugo; Meier, Fabian; Gade, Lutz H.; Jung, Thomas A.; Stöhr, Meike | Palabras clave: | Coupled quantum systems Quantum dots Quantum confinement Crystalline solids Surfaces Organic nanoporous network Electronic band structure Pore states |
Fecha de publicación: | 17-jul-2009 | Editor: | American Association for the Advancement of Science | Citación: | Science 325(5938): 300-303 (2009) | Resumen: | The properties of crystalline solids can to a large extent be derived from the scale and dimensionality of periodic arrays of coupled quantum systems such as atoms and molecules. Periodic quantum confinement in two dimensions has been elusive on surfaces, mainly because of the challenge to produce regular nanopatterned structures that can trap electronic states. We report that the two-dimensional free electron gas of the Cu(111) surface state can be trapped within the pores of an organic nanoporous network, which can be regarded as a regular array of quantum dots. Moreover, a shallow dispersive electronic band structure is formed, which is indicative of electronic coupling between neighboring pore states. | Descripción: | 4 pages, 3 figures.-- Supporting information (Materials and Methods, SOM Text, Suppl. figs. S1-S7, Suppl Refs, 15 pages) available at: http://science-mag.aaas.org/cgi/data/325/5938/300/DC1/1 | Versión del editor: | http://dx.doi.org/10.1126/science.1175141 | URI: | http://hdl.handle.net/10261/15042 | DOI: | 10.1126/science.1175141 | ISSN: | 0036-8075 | E-ISSN: | 1095-9203 |
Aparece en las colecciones: | (CIN2) Artículos |
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