DocumentCode
2149682
Title
DC and small-signal numerical simulation of graphene base transistor for terahertz operation
Author
Di Lecce, Valerio ; Grassi, Roberto ; Gnudi, A. ; Gnani, Elena ; Reggiani, S. ; Baccarani, G.
Author_Institution
E. De Castro Adv. Res. Center on Electron. Syst. (ARCES), Univ. of Bologna, Bologna, Italy
fYear
2013
fDate
16-20 Sept. 2013
Firstpage
314
Lastpage
317
Abstract
The working principles of the hot-electron graphene base transistor (GBT) for analog terahertz operation have been investigated by means of a self-consistent Schrodinger-Polsson solver code. Its regions of operation are defined and discussed. With the help of a small-signal model, it is shown that the cutoff frequency does not depend on the quantum capacitance of the graphene layer, which on the contrary severely affects the intrinsic voltage gain, and that terahertz operation is possible.
Keywords
Poisson equation; Schrodinger equation; graphene; numerical analysis; transistors; DC-signal numerical simulation; GBT; Schrodinger-Poisson solver code; analog terahertz operation; hot-electron graphene base transistor; intrinsic voltage gain; quantum capacitance; small-signal numerical simulation; Cutoff frequency; Electric potential; Graphene; Numerical models; Quantum capacitance; Transistors;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Device Research Conference (ESSDERC), 2013 Proceedings of the European
Conference_Location
Bucharest
Type
conf
DOI
10.1109/ESSDERC.2013.6818881
Filename
6818881
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