Field-Induced P-N Transition in Yttria-Stabilized Zirconia
29 Pages Posted: 15 Aug 2019 First Look: Under Review
Oxide ion conducting yttria-stabilised zirconia ceramics show the onset of electronic conduction under a small bias voltage. Compositions with a high yttria content undergo a transition from p-type to n-type behavior at voltages in the range 2.4 to 10 V, which also depends on oxygen partial pressure. This shows that surface reactions have a direct influence on bulk conductivities, with possible implications for voltage-induced flash phenomena and resistive switching.
Keywords: yttria-stabilized zirconia (YSZ), flash sintering, pn juction, dc bias, resistive switching, impedance spectroscopy
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