First principle study of graphene-carbon nanotubes hybrid (GCH) structure for advanced nanoelectronics devices

Lee Li Theng, Iskandar Yahya, Mohd Ambri Mohamed, Mahamad Fariz Mohamad Taib

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Although graphene and carbon nanotubes (CNT) exhibit remarkable electronic and mechanical properties, these two carbon allotropes face limitations due to their nanoscale size. The combination of graphene and CNT are suggested to overcome the problem of bundling and stacking in CNT and graphene which limit their performance. First principle study is carried out on the electronic properties of graphene-carbon nanotubes hybrid (GCH) structure using BIOVIA Material Studio software. Density Functional Theory (DFT) is used to calculate its band structure and density of states. The results show that when semiconducting CNT combine with graphene, its band gap is reduced compare to the pristine CNT. However, when metallic CNT is combine with graphene, the changes in band gap is depend on CNT's chirality. Chiral CNT will decrease the band gap of GCH, zigzag CNT causes not much changes in its GCH, while armchair CNT will increase the band gap of its GCH. Therefore, the result shows that it is possible to tune the band gap of GCH by combining graphene sheet with different type of CNT depending on our needs.

Original languageEnglish
Title of host publication2018 IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages250-253
Number of pages4
Volume2018-August
ISBN (Electronic)9781538652831
DOIs
Publication statusPublished - 3 Oct 2018
Event13th IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Kuala Lumpur, Malaysia
Duration: 15 Aug 201817 Aug 2018

Other

Other13th IEEE International Conference on Semiconductor Electronics, ICSE 2018
CountryMalaysia
CityKuala Lumpur
Period15/8/1817/8/18

Fingerprint

Carbon Nanotubes
Nanoelectronics
Graphite
Graphene
Carbon nanotubes
Energy gap
Electronic properties
Chirality
Studios
Band structure

Keywords

  • carbon nanotubes (CNT)
  • density functional theory (DFT)
  • first principle study
  • graphene
  • hybrid

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Theng, L. L., Yahya, I., Mohamed, M. A., & Mohamad Taib, M. F. (2018). First principle study of graphene-carbon nanotubes hybrid (GCH) structure for advanced nanoelectronics devices. In 2018 IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Proceedings (Vol. 2018-August, pp. 250-253). [8481215] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SMELEC.2018.8481215

First principle study of graphene-carbon nanotubes hybrid (GCH) structure for advanced nanoelectronics devices. / Theng, Lee Li; Yahya, Iskandar; Mohamed, Mohd Ambri; Mohamad Taib, Mahamad Fariz.

2018 IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Proceedings. Vol. 2018-August Institute of Electrical and Electronics Engineers Inc., 2018. p. 250-253 8481215.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Theng, LL, Yahya, I, Mohamed, MA & Mohamad Taib, MF 2018, First principle study of graphene-carbon nanotubes hybrid (GCH) structure for advanced nanoelectronics devices. in 2018 IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Proceedings. vol. 2018-August, 8481215, Institute of Electrical and Electronics Engineers Inc., pp. 250-253, 13th IEEE International Conference on Semiconductor Electronics, ICSE 2018, Kuala Lumpur, Malaysia, 15/8/18. https://doi.org/10.1109/SMELEC.2018.8481215
Theng LL, Yahya I, Mohamed MA, Mohamad Taib MF. First principle study of graphene-carbon nanotubes hybrid (GCH) structure for advanced nanoelectronics devices. In 2018 IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Proceedings. Vol. 2018-August. Institute of Electrical and Electronics Engineers Inc. 2018. p. 250-253. 8481215 https://doi.org/10.1109/SMELEC.2018.8481215
Theng, Lee Li ; Yahya, Iskandar ; Mohamed, Mohd Ambri ; Mohamad Taib, Mahamad Fariz. / First principle study of graphene-carbon nanotubes hybrid (GCH) structure for advanced nanoelectronics devices. 2018 IEEE International Conference on Semiconductor Electronics, ICSE 2018 - Proceedings. Vol. 2018-August Institute of Electrical and Electronics Engineers Inc., 2018. pp. 250-253
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