Dear Colleagues
I have a question regarding gradual I-V curve in ReRAM. Actually the Top and bottom electrodes are Au and ITO, respectively. The insulator is polymer but I got gradual curve, what should be the inferred switching mechanism considering that Au is not an active electrode? In log-log plot it shows ohmic contact with slope of 1.2, but I think it shouldn't be filamentary because the change is not abrupt.
Would you please give me a comment?
Regards
Niloufar (Neli)
the I-V curves you have mentioned is seems to be analog switching, in case of consecutive sweeps of I-V current level increases for one polarity and for the other polarity current level decreases which is also called potentiation and depression. The question will be more clear If you add the I-V of your device.
If you are getting some characteristics like the characteristics of device I have attached here then I may help you.because the I-V you mention in the 3rd graph is current density Vs voltage. I possible kindly let me know the I-V with current vs voltage
You can fit with other models also like SCLC, TAT ets. But the slope clearly reflects the filamentary conduction mechanism. The sharpness of the switching also depends on the thickness of the active material. If it is too thick then the changes may not be abrupt. What is the thickness of the insulating polymer?
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