A constant-temperature method for evaluating deep-level parameters in Schottky-barrier TSC measurements

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Abstract
From a measurement at several different temperatures of the constant-temperature current decay produced by the thermal emptying of deep centres within the depletion region of a Schottky barrier, the thermal activation energy and the thermal capture cross section of these centres can be evaluated. The method is capable of better accuracy than that displayed by conventional heating-rate methods and is also applicable in the presence of several other levels. The method also takes into account the temperature dependence of capture cross section of the centres and, in cases where this is strong, permits this dependence to be calculated.