Space-Charge-Limited Transient Currents in Nonmetallic Crystals

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Abstract
It is shown that the theory for space-charge-limited transient currents in idealized nonmetallic crystals with Mott-Gurney initial and boundary conditions (based on a constant thermal-equilibrium charge-carrier reservoir density close to the injecting contact) predicts a current-density response qualitatively similar to the current-density response for field-free initial and boundary conditions. Detailed analysis reported here reconfirms the prediction of a very large diffusion-dominated short-duration current density during the initial stage of the transient for suitable magnitudes of the physical parameters.