Abstract
Nearly ideal Schottky contacts were realized on n-InP by oxide-free surface cleaning techniques. Current-voltage (I-V) and capacitance-voltage (C-V) characteristics of the metal-semiconductor (MS) diodes are presented for the temperature range of 100 to 300 K. The current transport mechanism is found to be dominated by thermionic emission (TE) rather than thermionic field emission (TFE) theory. The ideality factor, n, is nearly constant in the temperature range of 150 to 300 K. The superior behavior of the diodes, such as ideal electrical characteristics, n values of around 1.01, and linear 1/C/sup 2/-V plots, is attributed to the preservation of the surface integrity and the reduction of the interface states. >
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