Current–voltage–temperature and capacitance–voltage–temperature characteristics of TiW alloy/p-InP Schottky barrier diode

作者: Jun Chen , Qingsong Wang , Jiabing Lv , Hengjing Tang , Xue Li

DOI: 10.1016/J.JALLCOM.2015.07.239

关键词:

摘要: Abstract We systematically characterize TiW alloy/p-InP Schottky barrier diode using current–voltage (I–V) and capacitance–voltage (C–V) measurements for different temperatures from 300 K to 400 K. The electrical parameters such as height (Φb0) ideality factor (n) have been obtained the thermal emission (TE) theory. Φb0 increases n decreases with increasing of temperature. temperature dependency characteristics is interpreted by TE theory assuming a Gaussian distribution heights according inhomogeneous model. mean Φ ¯ b 0 ( T = K ) 1.09 V standard deviation σ0 = 135 mV are plotting versus 1/2kT, indicating heights. value extracted Richardson constant A* 56.2504 Acm−2 K−2, which in good agreement theoretical value. All these results show that carrier transport process can be modeled In addition, C–V analyzed taking into account series resistance (Rs). interface states shows increase state density midgap towards top valence band.

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