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Measurements of conductivity in graphene

Posted 11 lug 2012, 07:36 GMT-4 Low-Frequency Electromagnetics, MEMS & Nanotechnology, MEMS & Piezoelectric Devices 2 Replies

Julien Paparone
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Hi all,
I'm studying the conductivity of a graphene-based device depending on the gate voltage applied on it. The thing is, to perform the simulation, Comsol requires a value for the conductivity, which is precisely the thing I want it to calculate.
Any suggestions ?
Thanks by advance.
2 Replies Last Post 23 giu 2016, 01:48 GMT-4
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Hello Julien Paparone

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Mohammad Farzaneh
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Posted: 8 years ago 22 giu 2016, 01:17 GMT-4
As far as I know, material library of COMSOL does not provide graphene physical model. You need to calculate it numerically using either simple Drude model or more sophisticated Kubo formulation.
As far as I know, material library of COMSOL does not provide graphene physical model. You need to calculate it numerically using either simple Drude model or more sophisticated Kubo formulation.
Daniel Connelly
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Posted: 8 years ago 23 giu 2016, 01:48 GMT-4
If you treat it as a semiconductor you'd need a carrier mobility, not a conductivity. You should be able to model it as a semiconductor.
If you treat it as a semiconductor you'd need a carrier mobility, not a conductivity. You should be able to model it as a semiconductor.

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