期刊
SCIENCE
卷 360, 期 6385, 页码 199-203出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aar2009
关键词
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资金
- Centres de Recerca de Catalunya Programme-Generalitat de Catalunya
- Xunta de Galicia (Centro singular de investigacion de Galicia accreditation) [ED431G/09]
- European Regional Development Fund
- Spanish Ministry of Economy and Competitiveness [MAT2016-78293-C6-2-R, MAT2016-78293-C6-3-R, MAT2016-78293-C6-4-R, MAT2016-75952-R]
- Secretariat for Universities and Research, Knowledge Department of the Generalitat de Catalunya [2014 SGR 715, 2014 SGR 56, 2017 SGR 827]
- Basque Department of Education [PI-2016-1-0027]
- European Union [696656]
- Agency for Management of University and Research grants (AGAUR) of the Catalan government through European Commission under Marie Curie COFUND action [600385]
- Spanish Ministry of Economy and Competitiveness (Severo Ochoa) [SEV-2013-0295]
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 similar to 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.
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