Strain-Induced Armchair Graphene Nanoribbon Resonant-Tunneling Diodes

2017 ◽  
Vol 64 (10) ◽  
pp. 4322-4326 ◽  
Author(s):  
Milad Zoghi ◽  
Arash Yazdanpanah Goharrizi
Keyword(s):  
Resonant Tunneling ◽  
Graphene Nanoribbon ◽  
Resonant Tunneling Diodes ◽  
Tunneling Diodes ◽  
Armchair Graphene Nanoribbon ◽  
Armchair Graphene

Performance enhancement of armchair graphene nanoribbon resonant tunneling diode using V-shaped potential well

2021 ◽  
Author(s):  
Madhusudan Mishra ◽  
N R Das ◽  
Narayan Sahoo ◽  
Trinath Sahu
Keyword(s):  
Resonant Tunneling ◽  
Resonant Tunneling Diode ◽  
Graphene Nanoribbon ◽  
Potential Well ◽  
High Frequency Signal ◽  
Peak Voltage ◽  
Voltage Range ◽  
Tunneling Diode ◽  
Armchair Graphene Nanoribbon ◽  
Armchair Graphene

Abstract We study the electron transport in armchair graphene nanoribbon (AGNR) resonant tunneling diode (RTD) using square and V-shaped potential well profiles. We use non-equilibrium Green’s function formalism to analyze the transmission and I-V characteristics. Results show that an enhancement in the peak current (Ip ) can be obtained by reducing the well width (Ww ) or barrier width (Wb ). As Ww decreases, Ip shifts to a higher peak voltage (Vp ), while there is almost no change in Vp with decreasing Wb . It is gratifying to note that there is an enhancement in Ip by about 1.6 times for a V-shaped well over a square well. Furthermore, in the case of a V-shaped well, the negative differential resistance occurs in a shorter voltage range, which may beneficial for ultra-fast switching and high-frequency signal generation. Our work anticipates the suitability of graphene, having better design flexibility, to develop ideally 2D RTDs for use in ultra-dense nano-electronic circuits and systems.

Graphene Nanoribbon Transistors and Resonant Tunneling Diodes

2008 ◽  
Author(s):  
G. Liang ◽  
H. Teong ◽  
K. Lam ◽  
N. Neophytou ◽  
D. E. Nikonov
Keyword(s):  
Resonant Tunneling ◽  
Graphene Nanoribbon ◽  
Resonant Tunneling Diodes ◽  
Tunneling Diodes

Shape effects in graphene nanoribbon resonant tunneling diodes: A computational study

2009 ◽  
Vol 105 (8) ◽  
pp. 084317 ◽  
Author(s):  
Hansen Teong ◽  
Kai-Tak Lam ◽  
Sharjeel Bin Khalid ◽  
Gengchiau Liang
Keyword(s):  
Resonant Tunneling ◽  
Computational Study ◽  
Graphene Nanoribbon ◽  
Resonant Tunneling Diodes ◽  
Tunneling Diodes ◽  
Shape Effects
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