Optical properties of Cd3As2 polycrystalline thin films

Annealing Effects on the Structural and Optical Parameters of Cu3In17Se80 Thin Films

“…Values of Eg opt and the constant A for the as-deposited and annealed Cu3In17Se80 films are tabulated also in Table(3). The obtained value of Eg opt for the as-deposited Cu3In17Se80 films is less than the value of energy gap for In20Se80 films determined by [ 1,4 ]. This means that the 3 at % Cu decreases the optical energy gap.…”

“…In-Se and Se-Te alloys have recently gained much importance as these alloys are found to be more photosensitive, harder, have a higher glass transition and crystallization temperatures and a smaller ageing effect than amorphous Se [1]. The structure of In-Se films with different Se percentage was studied by different authors [2][3][4][5].…”

“…The structure of In-Se films with different Se percentage was studied by different authors [2][3][4][5]. The structure and physical properties of In20Se80 films were studied [1,6]. It was found that In20Se80 films have amorphous structure with optical indirect energy gap of 1.76 eV [1].…”

“…The structure and physical properties of In20Se80 films were studied [1,6]. It was found that In20Se80 films have amorphous structure with optical indirect energy gap of 1.76 eV [1]. The direct current conductivity in this material exhibited a transition from ohmic to square law behavior at high voltages.…”