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Nitrogenated holey two-dimensional structures
( Javeed Mahmood ),이은광,정민복,심동빈,전인엽,배서윤,손소담,정선민,최현정,서정민,박노정,오준학,신현준,백종범 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
Recent graphene research has triggered enormous interest in new twodimensional ordered crystals constructed by the inclusion of elements other than carbon for band-gap 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 tunneling 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.