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organic electronic device simulator

Project description

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This is work in progress. See doc/ for documentation, and examples/ for examples of use.


pip install oedes

It is recommended to run test suite after installing

python -c "import oedes; oedes.test()"

Example simulation

This builds and solves a model of abrupt PN junction:

import oedes
from oedes import models

# Define doping profile
def doping_profile(mesh, ctx, eq):
    Nd = ctx.param(eq, 'Nd')
    Na = ctx.param(eq,'Na')

# Define device model
poisson = models.PoissonEquation()
temperature = models.ConstTemperature()
electron = models.BandTransport(poisson=poisson, name='electron', z=-1, thermal=temperature)
hole = models.BandTransport(poisson=poisson, name='hole', z=1, thermal=temperature)
doping = models.FixedCharge(poisson, density=doping_profile)
semiconductor = models.Electroneutrality([electron, hole, doping],name='semiconductor')
recombination = models.DirectRecombination(semiconductor)
anode = models.OhmicContact(poisson, semiconductor, 'electrode0')
cathode = models.OhmicContact(poisson, semiconductor, 'electrode1')
equations=[ poisson, temperature, electron, hole,
            doping, semiconductor, anode, cathode,
            recombination ]

# Define device parameters

# Discretize and solve discrete model
mesh = oedes.fvm.mesh1d(100e-9)
model = oedes.fvm.discretize(equations, mesh)

# Plot bands and quasi Fermi potentials
import matplotlib.pylab as plt
p=c.mpl(plt.gcf(), plt.gca())

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