Author Topic: how to calculate the FET carrier mobility of WSe2  (Read 3111 times)

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Offline njuxyh

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how to calculate the FET carrier mobility of WSe2
« on: October 21, 2015, 12:11 »
Hi all:
i have a FET system similar to figure 1. so i want to calculate the carrier mobility, i have seen a formular(see figure 2) in a eperiments in nano letter 2013 13 1983-1990.

but i am wondering how to define the channel width, because in our theortical work, the sheet of WSe2 is periodic in the x-y plane, so there is infinite wide,

therefore, dear ATK develper, would you help me to how to calculate the FET carrier mobility, because it is rather key parameters in device character.



Offline Jess Wellendorff

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Re: how to calculate the FET carrier mobility of WSe2
« Reply #1 on: October 21, 2015, 14:30 »
Perhaps you can use the new Mobility analysis object available in ATK 2015:
http://docs.quantumwise.com/tutorials/mobility.html

Offline njuxyh

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Re: how to calculate the FET carrier mobility of WSe2
« Reply #2 on: October 21, 2015, 14:57 »
sorry, the model shown in figure 2 is my real model, , because my model is a short channel with two Au(111) electode, 
 the electode contact  dominats the transport properties.
so i think it is not practical to use the mobility analysis tool in atk 2015,