Work-Function Difference: Difference between revisions
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(New page: This procedure takes a contact name (Contact, eg. Top), and the material the contact is made out of (Mat, e.g. Aluminum). It sets a contact equation in the pdb. ==== model ==== proc Meta...) |
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MetalContact Top Aluminum | MetalContact Top Aluminum | ||
==== | |||
==== model ==== | |||
proc MetalContact {Contact} { | |||
set WF "0.0" | |||
pdbSetBoolean $Contact DevPsi Flux 1 | |||
pdbSetBoolean $Contact DevPsi Fixed 1 | |||
pdbSetString $Contact DevPsi Equation "DevPsi - $Contact + $WF" | |||
} | |||
==== Notes ==== | |||
You need to define a work-function for the material that your contact is made of, e.g.: | You need to define a work-function for the material that your contact is made of, e.g.: | ||
pdbSetDouble Aluminum 4.1 | pdbSetDouble Aluminum 4.1 | ||
Latest revision as of 21:49, 15 November 2010
This procedure takes a contact name (Contact, eg. Top), and the material the contact is made out of (Mat, e.g. Aluminum). It sets a contact equation in the pdb.
model
proc MetalContact {Contact Mat} {
set WFN [pdbGetDouble $Mat WFN]
pdbSetBoolean $Contact DevPsi Flux 1
pdbSetBoolean $Contact DevPsi Fixed 1
pdbSetString $Contact DevPsi Equation "DevPsi + $WFN - $Contact";# Efm+WFN=El=-DevPsi, Efm=-$Contact
}
#Example:
MetalContact Top Aluminum
model
proc MetalContact {Contact} {
set WF "0.0"
pdbSetBoolean $Contact DevPsi Flux 1
pdbSetBoolean $Contact DevPsi Fixed 1
pdbSetString $Contact DevPsi Equation "DevPsi - $Contact + $WF"
}
Notes
You need to define a work-function for the material that your contact is made of, e.g.:
pdbSetDouble Aluminum 4.1