Dear all!
I am currently looking for code (preferably Matlab) to solve the time-dependent drift-diffusion equations for a mixed ionic-electronic conductor with a single ionic and single electronic species, e.g. the material is a hole-conducting semiconductor and has a single, single negatively charged, mobile ion. Contacts can be considered ion blocking and no chemical reaction should occur.
I have found several paper outlining the solution for a steady state condition (e.g. Y. Gil et al., Solid State Ionics 179 (2008)); but I was unable to find something similar for the transient solution.
Unfortunately my programming skills have steadily degraded ever since I left college and I am looking for a more detailed outline to avoid the usual pitfalls ;)
If someone has recently come across something similar I am very grateful for any help!
Yours,
Chris
Hope the following MATLAB link may be useful to you.
http://www.mathworks.com/matlabcentral/fileexchange/41174-numericale-solution-of-1d-drift-diffusion-problem--mol-+-fv-+-weno5-lf--/content/Drift_diffusion_WENO5.m
This is a rather late response, but we have recently developed a time dependent drift diffusion code (solves for free electrons, free holes and mobile ionic defects - we've been using it to describe hybrid perovskite solar cells) in Matlab with the pdepe solver. It might be useful for you.
https://github.com/barnesgroupICL/Driftfusion
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