Electronic structure and optical properties of zinc-blende GaN

A first principles investigation of the effect of aluminum, gallium and indium impurities on optical properties of β-Si3N4 structure

“…(1) [21,22]. Further optical properties can be determined after obtaining real and imaginary parts of the complex dielectric function.…”

“…Here, E i and E f are binding energies in the first and the last configurations, and P if is the momentum matrix element [23]. Also, n and k are associated with expressions 1 (ω) and 2 (ω) the relationship between them is given as [22];…”

Estructura cristalina del compuesto Cu2ZnSnSe4 depositado por co-evaporación: análisis comparativo estannita-kesterita

“…Se puede observar que la estructura cristalina de la kesterita de CZTSe (Figura 2) es similar a la estructura calcopirita de los compuestos CIGS donde el indio y el galio se sustituye por zinc y estaño (Mise & Nakada 2009, Liao et al 2012. De igual forma, a la estructura del ZnO (Wei et al 2009, Lemlikchi et al 2010 o ZnS (Muthukumaran & Ashok 2013, Sookhakian et al 2014, los aniones y cationes del cristal CZTSe de kesterita que se encuentran situados en un entorno de unión tetraédrica con un modelo de apilamiento que es análogo a la blenda de zinc (Du et al 2012, Jiang et al 2013.…”

Electronic and optical properties of black phosphorus doped with Au, Sn and I atoms

“…For a crystal dielectric function (ε i,j (ω)) is given by Equation (4): between 0 and 5 eV photon energy values. To analyse the optical properties of the pure BP and BP doped with Au, Sn and I structures, well-known Kramers-Kronig equations (Equations (5) and (6)) were used [32]: Figure 6 shows real part of dielectric function depending on photon energy for pure and doped BPs. Due to the different edges, it is expected that the different optical properties are exhibited.…”