Nitrogenated holey two-dimensional structures

Javeed Mahmood, Eun Kwang Lee, Minbok Jung, Dongbin Shin, In-Yup Jeon, Sun-Min Jung, Hyun-Jung Choi, Jeong-Min Seo, Seo-Yoon Bae, So-Dam Sohn, Noejung Park, Joon Hak Oh (), Hyung-Joon Shin () and Jong-Beom Baek ()
Additional contact information
Javeed Mahmood: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Eun Kwang Lee: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Minbok Jung: School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center/KIST-UNIST Ulsan Center for Convergent Materials, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Dongbin Shin: Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
In-Yup Jeon: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Sun-Min Jung: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Hyun-Jung Choi: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Jeong-Min Seo: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Seo-Yoon Bae: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
So-Dam Sohn: School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center/KIST-UNIST Ulsan Center for Convergent Materials, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Noejung Park: Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Joon Hak Oh: Pohang University of Science and Technology (POSTECH), 77 Cheongam
Hyung-Joon Shin: School of Materials Science and Engineering/Low-Dimensional Carbon Materials Center/KIST-UNIST Ulsan Center for Convergent Materials, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon
Jong-Beom Baek: School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 100 Banyeon

Nature Communications, 2015, vol. 6, issue 1, 1-7

Abstract: 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 107, 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.

Date: 2015
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DOI: 10.1038/ncomms7486

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