Optical properties of GaAs

The optical absorption coefficient and complex dielectric response function of pure GaAs is measured at ambient temperature in the range of 100–20000cm^–1 using two different techniques. The results reported here are in agreement with results reported in other published work. In order to improve the efficiency of the GaAs to be used as a solar cell, we propose, on the basis of emperical formula and data available in the literature, the amount of dopping, appropriate to increasing the efficiency of GaAs as a solar cell.