Abstract
The temperature dependence of the current–voltage and room temperature capacitance–voltage measurements of Co/aniline blue/n-Si sandwich-type rectifying device was investigated.Furthermore, the effects of the illumination on the current–voltage measurements were tested with 100 mW/cm2 light intensity, and it was seen that Co/aniline blue/n-Si sandwich-type device showed a clear response to illumination, and it may be a candidate for solar cells or photodiode applications. The rectifying device parameters, such as the barrier height (Ф), the ideality factor (n), the rectification ratio, and the series resistance (Rs), were obtained as a function of temperature using thermionic emission, Cheung function, and Norde function. The interface state densities versus energy were obtained. The Richardson constant (A*) obtained from the In(Io/T2) versus 1000/T plot was much less than the theoretical value for n-Si. The mean Schottky barrier height
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