Title :
AC Small-Signal Response of Graphene Nanoribbons
Author :
Chen, Zhidong ; Zhang, Jinyu ; Yu, Zhiping
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing
Abstract :
The ac small-signal conductance of graphene nanoribbons (GNRs) was investigated using non-equilibrium Green´s function. Simulation results of ac conductance of GNRs with and without the edge effect are presented. The edge effect and the influence of a slight change in width have great impacts on the ac conductance of GNRs. The ac conductance of GNRs presents oscillatory response with frequency. At low frequencies, a metallic GNR displays an inductive behavior, whereas a semi-conductive GNR displays a capacitive behavior.
Keywords :
Green´s function methods; electrical conductivity transitions; graphene; nanostructured materials; C; ac small-signal conductance; capacitive behavior; edge effect; graphene nanoribbons; inductive behavior; nonequilibrium Green´s function; Displays; Electrodes; Frequency; Green´s function methods; Hydrogen; Microelectronics; Nanoscale devices; Photonic band gap; Steady-state; Voltage;
Conference_Titel :
Computational Electronics, 2009. IWCE '09. 13th International Workshop on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3925-6
Electronic_ISBN :
978-1-4244-3927-0
DOI :
10.1109/IWCE.2009.5091084
