Article ID Journal Published Year Pages File Type
1815805 Physica B: Condensed Matter 2007 6 Pages PDF
Abstract

Measurements of optical properties have been made on alloyed samples of Se and Ge with In prepared under vacuum by quenching the melt into water. The optical transmission spectra of film Se90Ge10−xInx (x=2, 4 and 6) were measured in the wavelength range 400–2000 nm by spectrophotometer. It is observed from optical transmission measurements that optical energy gap (Eg) decreases with In content. It is also found that refractive index (n), real dielectric constant (ε′) decreases with wavelength (λ) while extinction coefficient (k  ), imaginary dielectric constant (ε″ε″) increases with wavelength (λ). The absorption coefficient (α) increases with photon energy (hν).

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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