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How to Define Graphene in COMSOL in Semiconductor Module

Posted 7 mars 2016, 17:53 UTC−5 2 Replies

Rishad Arfin
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Hello, I am almost new to comsol. I was trying to simulate a MOSFET device which has Graphene as its channel. As there is no built in material called Graphene in COMSOL 5.1, I have to define it. While defining Graphene in COMSOL, I am facing some difficulties defining the parameters for Graphene such as-

1. Bandgap
2. Effective Density of States, Valence band
3. Effective Density of States, Conduction band
4. Electron and Hole mobility
5. Permittivty
6. Electron affinity

Moreover, I also would like know, if I am adding doping profile in the semiconductor MOSFET, should I also include doping profile in Graphene channel? My objective is to just observe the current( I) curve against gate voltage (Vg) , if I define graphene as the channel.

Please let me know. Your help is much more appreciable.

Thanks,
Rishad
2 Replies Last Post 18 sept. 2016, 13:12 UTC−4
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Hello Rishad Arfin

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海 吕
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Posted: 8 years ago 17 sept. 2016, 17:38 UTC−4
i also have a same problem.Can anyone answer it？Thank you.
i also have a same problem.Can anyone answer it？Thank you.
Rishad Arfin
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Posted: 8 years ago 18 sept. 2016, 13:12 UTC−4
Hey. let me know if you can solve the problem. Did you post something on this previously ?

Thanks,
RA
Hey. let me know if you can solve the problem. Did you post something on this previously ? Thanks, RA

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