Due to the intrinsic nature of the band gap of GaAs, it can be used in numerous optoelectronic devices (LEDs, laser, solar cells). Freiberger produces both N-type and P-type wafers in diameters from 3” to 8". Most segments of the optoelectronic market are very cost conscious, so we have worked with our customers to move to larger diameter wafers as a means to reduce cost.