Comparison of tunneling currents in graphene nanoribbon tunnel field effect transistors calculated using Dirac-like equation and Schrodinger’s equation  

作　　者：Endi Suhendi Lilik Hasanah Dadi Rusdiana Fatimah A. Noor Neny Kurniasih Khairurrijal 

机构地区：[1]Physics of Electronic Material Research Division, Universitas Pendidikan Indonesia, Bandung 40154, Indonesia [2]Physics of Electronic Material Research Division, Institut Teknologi Bandung, Bandung 40132, Indonesia [3]Earth Physics and Physics of Complex Systems Research Division, Institut Teknologi Bandung, Bandung 40132, Indonesia

出　　处：《Journal of Semiconductors》2019年第6期43-47,共5页半导体学报（英文版）

基　　金：supported by Hibah Penelitian Berbasi Kompetensi 2018 RISTEKDIKTI Republic of Indonesia

摘　　要：The tunneling current in a graphene nanoribbon tunnel field effect transistor(GNR-TFET) has been quantum mechanically modeled. The tunneling current in the GNR-TFET was compared based on calculations of the Dirac-like equation and Schrodinger’s equation. To calculate the electron transmittance, a numerical approach-namely the transfer matrix method(TMM)-was employed and the Launder formula was used to compute the tunneling current. The results suggest that the tunneling currents that were calculated using both equations have similar characteristics for the same parameters, even though they have different values. The tunneling currents that were calculated by applying the Dirac-like equation were lower than those calculated using Schrodinger’s equation.The tunneling current in a graphene nanoribbon tunnel field effect transistor(GNR-TFET) has been quantum mechanically modeled. The tunneling current in the GNR-TFET was compared based on calculations of the Dirac-like equation and Schr?dinger’s equation. To calculate the electron transmittance, a numerical approach-namely the transfer matrix method(TMM)-was employed and the Launder formula was used to compute the tunneling current. The results suggest that the tunneling currents that were calculated using both equations have similar characteristics for the same parameters, even though they have different values. The tunneling currents that were calculated by applying the Dirac-like equation were lower than those calculated using Schr?dinger’s equation.

关 键 词：graphene nanoribbon tunnel field effect transistor tunneling current Schrodinger equation Dirac-like equation 

分 类 号：TN386[电子电信—物理电子学]