CHY8428: Which semiconductor properties can be obtained from measurements of the absorption coefficient: Energy and Materials Assignment, NU, UK
(i) Which semiconductor properties can be obtained from measurements of the absorption coefficient? (ii) Estimate the bandgap of Si and GaAs using Figure 1. Compare the obtained values with values estimated in figure 2. What is the smallest value for the energy of a direct optical transition for Si (Figure 1). (iii) Neglecting any reflection … Read more