期刊
MATERIALS RESEARCH EXPRESS
卷 1, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/1/2/025603
关键词
layered borocarbonitrides; photoluminescence; electronic structure; resistivity
资金
- Council of Scientific and Industrial Research, India
Layered borocarbonitrides BCN and BC5N with a wide difference in composition have been prepared by the urea route. These 2D materials show a significant difference in the photoluminescence spectra, with BCN and BC5N showing maxima at 340 and 410 nm (3.61 and 3.0 eV), besides exhibiting different electrical resistivities. First-principles calculations show that BCN and BC5N are associated with different band gaps, the gap of the carbon-rich composition being lower. The change in the electronic structure and properties is related to the composition of BCXN i.e. the ordering of the graphene and BN domains.
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