?SearchQ: (a) Sketch the covalent bonding of Si atoms in a intrinsic Si crystal Illustrate with sketches the..(a) Sketch the covalent bonding of Si atoms in a intrinsic Si crystalIllustrate with sketches the formation of bonding in presence of donor and acceptoratoms. Sketch the energy band diagram, indicating the position of donor and acceptorlevels at 0 K. Explain how the semiconductor behaves as n-type (in case of donor) andp-type (in case of acceptor) at a finite room temperature (T>0 K)