Electronic structure and optical properties of HgSe
Journal Title: Semiconductor Physics, Quantum Electronics and Optoelectronics - Year 2018, Vol 21, Issue 3
Abstract
We have performed the density functional theory calculations of mercury selenide compound using the plane-wave pseudo-potential (PWPP) method within the generalized gradient approximation to investigate the electronic structure and dielectric response of this compound in its zinc blende phase. The calculated lattice and volume parameters are in consonance with other experimental and theoretical works. The electronic structure of the compound showed that mercury selenide exhibited a semi-metallic property with a negligible direct band gap of about 0 eV at high symmetry gamma-point. Real and imaginary parts of dielectric function as a function of photon energy have been also obtained.
Authors and Affiliations
J. O. Akinlami
Keywords
Related Articles
- EP ID EP416055
- DOI 10.15407/spqeo21.03.288
- Views 99
- Downloads 0
London forces in highly oriented pyrolytic graphite
Surface of highly oriented pyrolytic graphite with terrace steps was studied using scanning tunneling microscopy with high spatial resolution. Spots with positive and negative charges were found in the vicinity of the st...
Detection of IR and sub/THz radiation using MCT thin layer structures: design of the chip, optical elements and antenna pattern
Two-color un-cooled narrow-gap MCT (mercury-cadmium-telluride) semiconductor thin layers, grown by liquid phase epitaxy or molecular beam epitaxy methods on high resistivity CdZnTe or GaAs substrates, with bow-type anten...
Spectral control of powerful diode lasers with enhanced output by external cavity based on volume holographic grating
To achieve the maximum efficiency in single-frequency lasing mode of laser diode with external cavity, it is necessary to minimize losses in the optical system for the output beam and to provide the optimal frequency-sel...
Determination of fundamental optical constants of Zn2SnO4 films
Examined in this paper have been optical properties of polycrystalline films Zn2SnO4 deposited using the spray pyrolysis method within the range of substrate temperatures 250 °C to 450 °C in increments of 50 °C. The spec...
Dynamics of transfer of electron excitation in a donor-acceptor system with a carbon chain and ways of its relaxation
The optical properties and dynamics of transport of electron excitation and the ways of its relaxation in the supramolecular D–π–A complex on the basis of merocyanines have been investigated. There have been found two co...