  II-VI and III-V tetrahedral semiconductors have significant potential for
novel optoelectronic applications. In the present work, some of the optical and
electronic properties of these groups of semiconductors have been studied using
a recently proposed empirical relationship for refractive index from energy
gap. The calculated values of these properties are also compared with those
calculated from some well known relationships. From an analysis of the
calculated electronic polarisability of these tetrahedral binary semiconductors
from different formulations, we have proposed an empirical relation for its
calculation. The predicted values of electronic polarisability of these
semiconductors agree fairly well with the known values over a wide range of
energy gap.
