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Characteristic parameters of a device with p-n junction, namely the ideality factor n, the saturation current I s , and the Shunt resistance R sh . These parameters give a first idea of the conduction phenomena. They also inform about the performances of the device and the possibilities of optimization of its operation. In this paper, a new method for numerical extraction of the diode parameters (these parameters are the usually the saturation current, the ideality factor and the shunt resistance), has been investigated. The method is based on calculating the differentiation of the current-voltage function. The validity of this method has been confirmed by the way of current-voltage measurements of a commercial silicon sample. Results from a numerical extraction of these parameters are presented, and these results were considered in good agreement keywords-I-V characteristics; Diode; Ideality factor; Saturation current and the shunt resistance

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