Universiti Teknologi Malaysia Institutional Repository

Warping armchair graphene nanoribbon curvature effect on sensing properties: A computational study

S. H., Sakina and Johari, Zaharah and Auzar, Zuriana and Alias, Nurul Ezaila and Mohamad, Azam and Zakaria, Nor Aini (2018) Warping armchair graphene nanoribbon curvature effect on sensing properties: A computational study. Journal of Electronic Materials, 47 (5). pp. 2768-2775. ISSN 0361-5235

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1007/s11664-018-6127-7

Abstract

The aim of this paper is to investigate the interaction between gas molecules and warped armchair graphene nanoribbons (AGNRs) using Extended-Huckel Theory. There are two types of warping known as inward and upward. The sensing properties including binding energy, charge transfer and sensitivity were examined for both warped AGNR cases for 3m+1 configuration and were compared with previous work. Through simulation, it was found that a substantial increase in binding energy by more than 50% was achieved when warped at a higher angle. It is also showed that there was a significant difference in sensitivity for both warping cases when reacting with O2 and NH3 molecules. Interestingly, the ability of the inward warped in sensing O2 and NH3 considerably increases upon warping angle. By applying back gate bias, this shows that current conductivity of the inward warped is twice as high as the upward warped AGNR.

Item Type:Article
Uncontrolled Keywords:AGNR, binding energy
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:85613
Deposited By: Widya Wahid
Deposited On:30 Jun 2020 16:54
Last Modified:30 Jun 2020 16:54

Repository Staff Only: item control page