Home > Articles > Published articles > Bottom-up synthesis of multifunctional nanoporous graphene |
Date: | 2018 |
Abstract: | 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. |
Grants: | Ministerio de Economía y Competitividad MAT2016-78293-C6-2-R Ministerio de Economía y Competitividad MAT2016-78293-C6-3-R Ministerio de Economía y Competitividad MAT2016-78293-C6-4-R Ministerio de Economía y Competitividad MAT2016-75952-R Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-715 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-56 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-827 European Commission 696656 European Commission 600385 |
Rights: | Tots els drets reservats. |
Language: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Published in: | Science, Vol. 360, Issue 6385 (April 2018) , p. 199-203, ISSN 1095-9203 |
Postprint 11 p, 967.1 KB |