bandgap has an importance role for conduction.if bandgap is max,the conduction of electron is min. and vice-versa.hence we can say that the bandgap desides the conductivity of any material(may be...
Direct band gap means in E-K diagram valance bands are exactly below covalance band,in this band electon fall's c.b to v.b direct without going to metastable state
direct band gap means in e-k diagram valance bands are exactly below covalance band,in this band electron falls from the conduction band to valance band directly without going to metastable state and...