A previous Monte Carlo simulation for hopping injection into a random organ
ic dielectric has been extended to include the effect of tunneling through
a thin inorganic insulator. The effect of the interface has been explained
upon the fact that the attenuation length of an electron is much larger in
a strongly bonded inorganic solid as compared to a van-der-Waals bonded org
anic. Depending upon the system parameters, significant improvement of inje
ction is predicted. (C) 1999 American Institute of Physics. [S0003-6951(99)
02125-7].