A modified forward I-V plot for Schottky diodes with high series resistance

It is shown that by plotting the function F (V) =V/2−(kT/q) ln(I/AA**T2) a reliable value of the barrier height can be obtained even if there is a series resistance which would hamper the evaluation of the standard lnI-vs-V plot. A theoretical examination of F (V) is followed by experimental plots for some common Schottky-barrier diodes.