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IJPAP Vol.49(06) [June 2011] >

Title: Space charge limited current in Schottky diode with single level traps
Authors: Kumar, Pankaj
Jain, Anubha
Shukla, Manju
Chand, Suresh
Keywords: Space charge limited current
Single level traps
Trap filled limit
Charge carrier transport
Schottky diode
Issue Date: Jun-2011
Publisher: NISCAIR-CSIR, India
Abstract: The space charge limited current (SCLC) in a Schottky diode with a finite injection barrier at the injecting contact and single level traps in the energy space has been investigated by mathematical modelling. Solution of coupled Poisson’s and continuity equations with non-zero Schottky barrier () leaded us to calculate the electric field [F(x)] and the charge carrier p(x) distribution in the sample. Considering the boundary conditions, the current density-voltage (J-V) characteristics have been calculated numerically. It is reported here that when Schottky barrier is not zero, J-V characteristics become Ohmic at infinitely large voltages. The expression of trap filled limit voltage (VTFL) has also been derived. The effect of Schottky barrier on the SCLC current in semiconducting devices has been studied in the present paper.
Page(s): 406-409
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(06) [June 2011]

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