Estimate the current flowing from bipolar junction diode

Question

A bipolar junction diode contain a uniform cross-sectional region of 2x10^-3 cm² and a doping concentration of 1013 cm^-3 in p-type and n-type both materials.  Therefore diffusion properties are Dn = 5 cm²s^-1, Ln = 50 µm for (e^-) electrons and Dp = 2 cm²s^-1, Lp = 100 µm for holes.

Estimate the current flowing from the diode under the given bias conditions:

(a) V = -10V (b) V = 0.1V (c) V = 0.25V and (d) V = 0.5V.

Remember that current flow is because of diffusion of minority carriers. And following term:

V_T = kT/q = 26mV @ 300⁰k, m_n = 1.5 x 10³ cm² V^-1 s^-1 and n_i = 1.5 x 1010 cm^-3 as well as q = 1.6 x 10^-19C