Nitrogenated holey two-dimensional structures

Nature Communications
Javeed MahmoodJong-Beom Baek

Abstract

Recent graphene research has triggered enormous interest in new two-dimensional ordered crystals constructed by the inclusion of elements other than carbon for bandgap opening. The design of new multifunctional two-dimensional materials with proper bandgap has become an important challenge. Here we report a layered two-dimensional network structure that possesses evenly distributed holes and nitrogen atoms and a C2N stoichiometry in its basal plane. The two-dimensional structure can be efficiently synthesized via a simple wet-chemical reaction and confirmed with various characterization techniques, including scanning tunnelling microscopy. Furthermore, a field-effect transistor device fabricated using the material exhibits an on/off ratio of 10(7), with calculated and experimental bandgaps of approximately 1.70 and 1.96 eV, respectively. In view of the simplicity of the production method and the advantages of the solution processability, the C2N-h2D crystal has potential for use in practical applications.

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Citations

Nov 3, 2015·ACS Applied Materials & Interfaces·Uday Narayan MaitiSang Ouk Kim
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Methods Mentioned

BETA
X-ray
scanning electron microscopy
transmission electron microscopy
scanning tunnelling microscopy

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