Conference Paper
http://hdl.handle.net/10361/6990
2024-03-29T00:28:58Z
2024-03-29T00:28:58Z
Vapor adsorption limitation of graphene nanoribbons in quasi conductance increment: a NEGF approach
Shakil, Shifur Rahman
Zohra, Fatema Tuz
Pramanik, Parna
Tushar, Raihanul Islam
Saha, Atanu Kumar
Bhuian, Md Belal Hossain
http://hdl.handle.net/10361/6986
2016-11-27T10:12:55Z
2015-01-01T00:00:00Z
Vapor adsorption limitation of graphene nanoribbons in quasi conductance increment: a NEGF approach
Shakil, Shifur Rahman; Zohra, Fatema Tuz; Pramanik, Parna; Tushar, Raihanul Islam; Saha, Atanu Kumar; Bhuian, Md Belal Hossain
The adsorption of H2O molecules on Armchair Graphene Nanoribbons (A-GNR) was theoretically studied using Non Equilibrium Green Function (NEGF) formalism to determine Device Density of States (DDOS), Electrostatic Effective Potential (EDP), Conductivity (G) and Current-Voltage (I-V) characteristics. This paper analyzed the performance of semiconducting graphene nanoribbon (N=10), metallic graphene nanoribbon (N=11) and cascade hetero-graphene nanoribbon to consider the effect of H2O adsorption on GNR and conclude that for low voltage application semiconducting A-GNR will be a better choice over metallic A-GNR and cascade A-GNR. The optimum area for adsorbing maximum number of H2O molecules on A-GNR has been studied. It has been observed that the increment of quasi conductance resulting sensing performance for limited number of H2O adsorption. To overcome this problem, a new device model has been proposed.
This conference paper was presented in the 10th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015; Xi'an; China; 7 April 2015 through 11 April 2015 [© 2015 Institute of Electrical and Electronics Engineers Inc.] The conference paper's definite version is available at: http://10.1109/NEMS.2015.7147445
2015-01-01T00:00:00Z