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Título: | Bottom-up synthesis of multifunctional nanoporous graphene |
Autor: | Moreno, César CSIC ORCID; Vilas-Varela, Manuel; Kretz, Bernhard; Garcia-Lekue, Aran CSIC ORCID; Costache, Marius V. CSIC ORCID; Paradinas, Markos CSIC ORCID; Panighel, Mirko CSIC ORCID; Ceballos, Gustavo CSIC ORCID; Valenzuela, Sergio O. CSIC ORCID; Peña, Diego; Mugarza, Aitor CSIC ORCID | Fecha de publicación: | 2018 | Editor: | American Association for the Advancement of Science | Citación: | Science 360(6385): 199-203 (2018) | Resumen: | Nanosize pores can turn semimetallic graphene into a semiconductor and, from being impermeable, into the most efficient molecular-sieve membrane. However, scaling the pores down to the nanometer, while fulfilling the tight structural constraints imposed by applications, represents an enormous challenge for present top-down strategies. Here we report a bottom-up method to synthesize nanoporous graphene comprising an ordered array of pores separated by ribbons, which can be tuned down to the 1-nanometer range. The size, density, morphology, and chemical composition of the pores are defined with atomic precision by the design of the molecular precursors. Our electronic characterization further reveals a highly anisotropic electronic structure, where orthogonal one-dimensional electronic bands with an energy gap of ∼1 electron volt coexist with confined pore states, making the nanoporous graphene a highly versatile semiconductor for simultaneous sieving and electrical sensing of molecular species. | Versión del editor: | https://doi.org/10.1126/science.aar2009 | URI: | http://hdl.handle.net/10261/199069 | DOI: | 10.1126/science.aar2009 | ISSN: | 0036-8075 | E-ISSN: | 1095-9203 |
Aparece en las colecciones: | (CIN2) Artículos |
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