Data for numericals

Some formulas

1. Einstein’s Relationship: Dp/ µp =Dn/ µn = constant= VT

2. VT = kT/q,= ǩT where k= Boltzmann constant in J/°K= 1.38 * 10-23 J/°K

Or ǩ= 8.625* 10-5eV/°K

3. NA+ n = ND + p

4. n*p = ni2

5. conductivity σ= σn+ σp = nqµn + pqµp where, q = charge = 1.6 * 10-19