Nanomaterials almost don't exhibit linear plot in mott schottky. Sometimes, positive-negative slopes appeared.!( is this P-n junction?! ) Moreover, linear or straight line followd by saturation!
Mott-Schottky curve become saturated at a certain potential because the film is fully depleted at this potential. Any further change of the potential will not change the capacitance in the space charge region. it always happens for thin semiconductor film.
the pn junction may be the reason of both positive and negative slope but it is better to have a rigorous model to prove it.
Mott-Schottky curve become saturated at a certain potential because the film is fully depleted at this potential. Any further change of the potential will not change the capacitance in the space charge region. it always happens for thin semiconductor film.
the pn junction may be the reason of both positive and negative slope but it is better to have a rigorous model to prove it.
Thanks Dr Gao. Have you a source saying the film is fully depleted at this potential !!
Give me an example about the rigorous model !
Dr Shankar, i used simple mott shottky equation
Nd = 2/ (e ε εo) [d (1/C2)/dV]-1 for calculating the donor density and to know type of doping p or n
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