MEASUREMENT AND ANALYSIS OF I-V-T CHARACTERISTICS OF A AUGENI/P-SI SCHOTTKY BARRIER DIODE
Résumé
ABSTRACT
In this work, we report measured forward current voltage characteristics of AuGeNi/p-Si schottky barrier diode in the
temperature range of 295-400 °K. Forward current voltage characteristics were investigated. This investigation is based on the
analysis of the dependency of extracted parameters such as ideality factor (η), barrier height ( ) and saturation current ( )
on temperature. The Richardson coefficient was examined by means of the saturation versus temperature. While η decreases,
ØB0 increases with increasing temperature. Obtained Richardson constant value of the A*=11.5 x10-7Acm-2K-2 is very low
compared to the standard value. The modified Richardson plot has given mean barrier height and Richardson constant
(A*) as 1.15 eV and 30.53 Am-2K-2, respectively. The temperature dependence of the I–V characteristics of the AuGeNi/p-Si
Schottky diode have been successfully explained on the basis of thermionic emission (TE) mechanism with Gaussian
distribution of the Schottky barrier heights (SBHs).
KEYWORDS: Schottky contacts, current-voltage-temperature characteristics, Gaussian distribution, Barrier inhomogeneity.
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