کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
748814 | 894790 | 2012 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A physics-based, small-signal model for graphene field effect transistors A physics-based, small-signal model for graphene field effect transistors](/preview/png/748814.png)
In this letter, a small-signal model for the graphene-based field effect transistor based on a physical description of the device’s operation is presented. The small-signal model contains circuit elements similar to classical small-signal models for field effect transistors but these elements differ vastly in their behavior with bias, owing to the different physical behavior of these devices. Intrinsic and extrinsic small-signal models are presented. The high-frequency performance of the models in terms of short-circuit current gain and Mason’s unilateral gain, and associated frequency figures-of-merit, are examined.
► Small-signal model development for graphene FETs.
► Based on quasi-static admittance parameters derived from theoretical operation of the device.
► Unique properties of graphene result in unconventional behavior of elements (gm, CG, gd, CGD).
► Intrinsic and extrinsic frequency performance: high gd limits the operation of the device.
► Effect of varied gate length (L); RG, RS, RD; and μn, μp examined.
Journal: Solid-State Electronics - Volume 67, Issue 1, January 2012, Pages 53–62