# Stacked Dielectric/Electret

• I
Hiya,

Essentially, I would like to

1) model a stack of 2 (or more) dielectrics or electrets such as to show the surface voltage as a result of a known applied AC or DC voltage and charge time.

and

2) Id also like to be able to model the charge accumulation at the material boundary interfaces in the stack over time, given material parameters such as k, resistivity, ect.

For [1], I assume that either a series capacitance model (such as: http://www.phys.uri.edu/gerhard/PHY204/tsl129.pdf ) or a parallel resistor/capacitor model such as in the attached image is best. If anyone could explain which is best or why theyre both bad Id appreciate it.

For [2], Im a bit at a loss and would appreciate if anyone could point me in the correct direction.

Thanks!

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## Answers and Replies

Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?