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Typical curve of an device. The inset shows EDX depth profiling data.
characteristics in a double-logarithmic plot at negative voltage sweep. Arrows indicate the direction of the voltage sweep. The values of different slopes are listed in the plots. For comparison, Poole–Frenkel emission (dotted line) and thermionic emission (dashed line) are also included.
(a) Schematic of the derivation of the analytic expression of . (b) Extracted using the differential method.
Measured and calculated characteristics at a negative voltage sweep with different types of trap distributions
Measured and calculated characteristics in a double-logarithmic plot at a positive voltage sweep.
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