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Tuning of electronic and optical properties of AlP nanosheet under electric field

•The AlP nanosheet is an indirect band gap semiconductor.•The electric field can modify the nanosheets' electronic and optical properties.•The semiconductors change to the metallic state under an electric field effect.•The electric field can induce the redshift of the nanosheets' absorptio...

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Bibliographic Details
Published in:Chinese journal of physics (Taipei) 2024-06, Vol.89, p.187-194
Main Authors: Abdul-Hussein, W.A., Hanoon, Falah H., Al-Badry, Lafy F.
Format: Article
Language:English
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Summary:•The AlP nanosheet is an indirect band gap semiconductor.•The electric field can modify the nanosheets' electronic and optical properties.•The semiconductors change to the metallic state under an electric field effect.•The electric field can induce the redshift of the nanosheets' absorption peaks.•The ability to control the SHG increases with increasing electric field strength. Using ab initio simulations, we investigate the electronic and optical properties of aluminum phosphorus (AlP) nanosheet under the electric field according to perpendicular direction. It is shown that an electric field can be used to tune the electronic and optical properties of an AlP nanosheet, such as the energy gap, total density of states, absorption coefficient, refractive index, dielectric function, and the nonlinear optical response. As a result, the system will exhibit a transition from semiconductor to metal by the applied electric field. Moreover, the electric field induced a broadening, the increased intensity at
ISSN:0577-9073
DOI:10.1016/j.cjph.2023.09.003