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02-11-2023

Band gap tuning and variable quantum barrier of armchair graphene nanoribbons by inducing antidote topologies

Authors: Tanvir Hossain, Md. Istiaque Rahaman

Published in: Journal of Computational Electronics | Issue 1/2024

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Abstract

Graphene nanoribbons (GNRs) are gaining traction as potential semiconductor materials for the post-silicon era. One method to manipulate the band gap of armchair graphene nanoribbons (AGNRs) is through the incorporation of antidote topologies, which consist of nanoholes. In this study, we propose eight distinct antidote topologies that can either increase or decrease the band gap of AGNRs. We investigate their application in AGNRs with various widths, demonstrating their versatility. We present 24 equations for calculating the band gap of AGNRs with 3P, 3P+1, and 3P+2 configurations. Additionally, we employ antidote topologies to create barriers within the AGNR channel, paving the way for the design of resonant tunneling diodes (RTDs) with varying barrier heights. This flexibility in barrier height allows for the development of AGNR-based devices tailored to specific design requirements. Utilizing a numerical tight-binding model with nearest-neighbor approximations, we construct device and antidote-induced Hamiltonians. We apply the time-independent Schrodinger equation to determine nanoribbon band gaps, validating alterations through the non-equilibrium Green’s function formalism. This methodology facilitates electron transmission and tunneling observation in RTDs, enabling the creation of quantum barriers with varying heights, yielding unique peak transmission and peak-to-valley ratios. Our research exhibits AGNR electronic property tunability via antidote topologies, promoting advanced AGNR-based device designs.

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Literature
5.
go back to reference Denk, R., Hohage, M., Zeppenfeld, P., Cai, J., Pignedoli, C.A., Söde, Hajo, Fasel, Roman, Feng, Xinliang, Müllen, Klaus, Wang, Shudong, et al.: Exciton-dominated optical response of ultra-narrow graphene nanoribbons. Nat. Commun. 5(1), 1–7 (2014). https://doi.org/10.1038/ncomms5253CrossRef Denk, R., Hohage, M., Zeppenfeld, P., Cai, J., Pignedoli, C.A., Söde, Hajo, Fasel, Roman, Feng, Xinliang, Müllen, Klaus, Wang, Shudong, et al.: Exciton-dominated optical response of ultra-narrow graphene nanoribbons. Nat. Commun. 5(1), 1–7 (2014). https://​doi.​org/​10.​1038/​ncomms5253CrossRef
30.
go back to reference Dhinakaran, V., Lavanya, M., Vigneswari, K., Ravichandran, M., Vijayakumar, M.D.: Review on exploration of graphene in diverse applications and its future horizon. In: Materials Today: Proceedings, 27:824 – 828, Jan. 2020. ISSN 2214-7853. In: First International conference on Advanced Lightweight Materials and Structures https://doi.org/10.1016/j.matpr.2019.12.369 Dhinakaran, V., Lavanya, M., Vigneswari, K., Ravichandran, M., Vijayakumar, M.D.: Review on exploration of graphene in diverse applications and its future horizon. In: Materials Today: Proceedings, 27:824 – 828, Jan. 2020. ISSN 2214-7853. In: First International conference on Advanced Lightweight Materials and Structures https://​doi.​org/​10.​1016/​j.​matpr.​2019.​12.​369
33.
go back to reference Wang, H., Kurata, K., Fukunaga, T., Takamatsu, H., Zhang, X., Ikuta, T., Takahashi, K., Nishiyama, T., Ago, H., Takata, Y.: In-situ measurement of the heat transport in defect-engineered free-standing single-layer graphene. Sci. Rep. 6(1), 1–7 (2016). https://doi.org/10.1038/srep21823CrossRef Wang, H., Kurata, K., Fukunaga, T., Takamatsu, H., Zhang, X., Ikuta, T., Takahashi, K., Nishiyama, T., Ago, H., Takata, Y.: In-situ measurement of the heat transport in defect-engineered free-standing single-layer graphene. Sci. Rep. 6(1), 1–7 (2016). https://​doi.​org/​10.​1038/​srep21823CrossRef
47.
Metadata
Title
Band gap tuning and variable quantum barrier of armchair graphene nanoribbons by inducing antidote topologies
Authors
Tanvir Hossain
Md. Istiaque Rahaman
Publication date
02-11-2023
Publisher
Springer US
Published in
Journal of Computational Electronics / Issue 1/2024
Print ISSN: 1569-8025
Electronic ISSN: 1572-8137
DOI
https://doi.org/10.1007/s10825-023-02108-7