Please suggest the formula of coefficient of absorption?

Soumyaranjan Mohapatra @Soumyaranjan_Mohapatra

02 February 2014 0 5K Report

And can it be used to find out the band gap of a semiconductor and an insulator as well?

http://www.ecse.rpi.edu/~schubert/Course-Teaching-modules/A054-Absorption-coefficient-of-various-semiconducting-materials.pdf

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