<abstract xmlns="http://www.w3.org/1999/xhtml">Optical properties of Si single crystals with different orientations (1 0 0) and (1 1 1) were investigated using spectrophotometric measurements in a spectral range of 200 nm to 2500 nm. The data of optical absorption revealed an indirect allowed transition with energy gap of 1.1 ± 0.025 eV. An anomalous dispersion in refractive index. The normal dispersion of the refractive index was discussed according to Wemple-DiDomenico single oscillator model. The oscillator energy Eo, dispersion energy Ed, high frequency dielectric constant ∈∞, lattice dielectric constant ∈<italic>L</italic> and electronic polarizability <italic>α</italic>e were estimated. The real ∈1 and imaginary ∈2 parts of dielectric constant were also determined.</abstract>

Optical properties of Si single crystals with different orientations (1 0 0) and (1 1 1) were investigated using spectrophotometric measurements in a spectral range of 200 nm to 2500 nm. The data of optical absorption revealed an indirect allowed transition with energy gap of 1.1 ± 0.025 eV. An anomalous dispersion in refractive index. The normal dispersion of the refractive index was discussed according to Wemple-DiDomenico single oscillator model. The oscillator energy Eo, dispersion energy Ed, high frequency dielectric constant ∈∞, lattice dielectric constant ∈L and electronic polarizability αe were estimated. The real ∈1 and imaginary ∈2 parts of dielectric constant were also determined.

Estimation of optical parameters of silicon single crystals with different orientations

Department of Physics, Faculty of Education

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Optical properties of Si single crystals with different orientations (1 0 0) and (1 1 1) were investigated using spectrophotometric measurements in a spectral...

Estimation of optical parameters of silicon single crystals with different orientations

Published Online: Mar 06, 2019

Page range: 65 - 70

Received: Aug 06, 2017

Accepted: Dec 21, 2018

DOI: https://doi.org/10.2478/msp-2019-0003

Keywords
single crystals, different orientations, optical parameters

© 2019 M.M. El-Nahass et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Estimation of optical parameters of silicon single crystals with different orientations

Published Online: Mar 06, 2019

Page range: 65 - 70

Received: Aug 06, 2017

Accepted: Dec 21, 2018

DOI: https://doi.org/10.2478/msp-2019-0003

Keywordssingle crystals, different orientations, optical parameters

© 2019 M.M. El-Nahass et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
single crystals, different orientations, optical parameters