In case of Multiferroic Perovskite materials, the Current-voltage curves sometimes don't pass through origin and show diode type characteristics due to polarization. But in illumination condition, i have observed that with the interaction of photons some materials show lower current value than dark condition. What would be the physical significance of giving low current value?
Dear Subhasri,
would you please display a typical I-V curve of your solar cells in dark and illumination. The ferroelectric behavior shifts the I-V curves from their original position because of polarization hysteresis. To discuss the shape of the curves one has to observe them.
Best wishes
Dear Abdelhalim abdelnaby Zekry ,
I understand the polarization concept as well as the shifting of curve from origin but my doubt is in illumination condition i am getting less current values than dark condition.
Regards
Dear Subharsi,
welcome!
I believe you. One normally observes that when displaying the illuminated I-V curve inn the first quadrant that the reverse scan of the I-V curve will be under the forward scan. This means that polarization voltage lower the terminal voltage for the same current in the reverse direction of the scan.
In order to share in the discussion of the results one has to examine your I-V curves.
Have a nice day!
Best wishes
Article Hysteresis and transient behavior in current-voltage measure...
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