

The electronic and optical properties of bulk-, supercell- and nanocluster-C3N4 are studied by the first- principles calculations within the framework of the density functional theory (DFT). The results show that C3N4 is indirect band gap semiconductors, from total densities of states and partial densities of states of carbonitride, it was found that valence band occupied by N 2p states, conduction band occupied by C 2p states. The optical properties of C3N4 show that there are two absorption peaks for light absorption in the ultraviolet region, the light permeability spectrum displays the wide photoconductive response interval and a high peak of C3N4. These results demonstrate that the materials C3N4 with good optical conductivity is prospective in the field of photoelectric equipment. © 2019 Author(s).
| Funding sponsor | Funding number | Acronym |
|---|---|---|
| Ministry of Education and Science of the Russian Federation | 3.1485.2017/4.6 | Minobrnauka |
| Government Council on Grants, Russian Federation |
The work was supported by the Ministry of Education and Science of the Russian Federation (Government Task No. 3.1485.2017/4.6) and Act 211 Government of the Russian Federation (contract № 02.A03.21.0006).
Lei, X.; Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russian Federation;
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