Silicon

Data from [1]. Tabulated data available at PV Education.

Optical Absorption

\[I(d) = I_0 e^{-\alpha d}\]

../_images/silicon_optical_properties_plot_silicon_absorption.png — Optical absorption coefficient as a function of wavelength (left) and the optical absorption depth (right) in silicon at 300K.

Refractive Index

\[n^* = n + i \kappa\]

../_images/silicon_optical_properties_plot_refractive_index.png

Reflectivity

\[R_{0}=\left\|{\frac{n_1-n_2}{n_1+n_2}}\right\|^{2}\]

../_images/silicon_optical_properties_plot_reflectivity.png — Reflectivity of silicon at an interface with air, \(n_1=1\).