Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores

Md Sharafat Hossain; Feras Al-Dirinil; Faruque M. Hossain; Efstratios Skafidas

doi:10.1109/NANO.2014.6968010

Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores

Md Sharafat Hossain
, Feras Al-Dirinil
, Faruque M. Hossain
, Efstratios Skafidas

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

In this paper we study the thermoelectric (TE) properties of graphene nano-ribbons (GNRs) with incorporated nanopores (NPs), and present a nanopore-engineering approach for enhancing their TE properties. The nearest neighbor tight binding (TB) model and Non equilibrium Green's function (NEGF) method were employed to obtain the electron transmission spectra. For phonon calculations, Tersoff potential along with Landaur formalism were used. We found a direct relationship between pore width and phononic thermal conductivity. The dependence of other parameters like Seebeck coefficient and electrical conductance on pore width was not so straight forward, and showed a clear dependence on the number of atoms in the side channel (NS). By optimizing NS we achieved a significant improvement in the thermoelectric figure of merit of GNRs-NPs. This research can be a route towards enhancing the TE properties of GNRs, making them potential candidates for future thermoelectronics.

Original language	English
Title of host publication	Proceedings of the IEEE Conference on Nanotechnology
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	598-601
Number of pages	4
ISBN (Electronic)	9781479956227
DOIs	https://doi.org/10.1109/NANO.2014.6968010
State	Published - 26 Nov 2014
Externally published	Yes

Publication series

Name	Proceedings of the IEEE Conference on Nanotechnology
ISSN (Electronic)	1944-9399

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

Keywords

Graphene nano-ribbon
Nanopores
Seebeck coefficient
Thermoelectronics

ASJC Scopus subject areas

Electrical and Electronic Engineering
Computer Science Applications
Modeling and Simulation
Instrumentation

Access to Document

10.1109/NANO.2014.6968010

Cite this

Hossain, M. S., Al-Dirinil, F., Hossain, F. M., & Skafidas, E. (2014). Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores. In Proceedings of the IEEE Conference on Nanotechnology (pp. 598-601). Article 6968010 (Proceedings of the IEEE Conference on Nanotechnology). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NANO.2014.6968010

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title = "Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores",

abstract = "In this paper we study the thermoelectric (TE) properties of graphene nano-ribbons (GNRs) with incorporated nanopores (NPs), and present a nanopore-engineering approach for enhancing their TE properties. The nearest neighbor tight binding (TB) model and Non equilibrium Green's function (NEGF) method were employed to obtain the electron transmission spectra. For phonon calculations, Tersoff potential along with Landaur formalism were used. We found a direct relationship between pore width and phononic thermal conductivity. The dependence of other parameters like Seebeck coefficient and electrical conductance on pore width was not so straight forward, and showed a clear dependence on the number of atoms in the side channel (NS). By optimizing NS we achieved a significant improvement in the thermoelectric figure of merit of GNRs-NPs. This research can be a route towards enhancing the TE properties of GNRs, making them potential candidates for future thermoelectronics.",

keywords = "Graphene nano-ribbon, Nanopores, Seebeck coefficient, Thermoelectronics",

author = "Hossain, \{Md Sharafat\} and Feras Al-Dirinil and Hossain, \{Faruque M.\} and Efstratios Skafidas",

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year = "2014",

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doi = "10.1109/NANO.2014.6968010",

language = "English",

series = "Proceedings of the IEEE Conference on Nanotechnology",

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Hossain, MS, Al-Dirinil, F, Hossain, FM & Skafidas, E 2014, Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores. in Proceedings of the IEEE Conference on Nanotechnology., 6968010, Proceedings of the IEEE Conference on Nanotechnology, Institute of Electrical and Electronics Engineers Inc., pp. 598-601. https://doi.org/10.1109/NANO.2014.6968010

Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores. / Hossain, Md Sharafat; Al-Dirinil, Feras; Hossain, Faruque M. et al.
Proceedings of the IEEE Conference on Nanotechnology. Institute of Electrical and Electronics Engineers Inc., 2014. p. 598-601 6968010 (Proceedings of the IEEE Conference on Nanotechnology).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - In this paper we study the thermoelectric (TE) properties of graphene nano-ribbons (GNRs) with incorporated nanopores (NPs), and present a nanopore-engineering approach for enhancing their TE properties. The nearest neighbor tight binding (TB) model and Non equilibrium Green's function (NEGF) method were employed to obtain the electron transmission spectra. For phonon calculations, Tersoff potential along with Landaur formalism were used. We found a direct relationship between pore width and phononic thermal conductivity. The dependence of other parameters like Seebeck coefficient and electrical conductance on pore width was not so straight forward, and showed a clear dependence on the number of atoms in the side channel (NS). By optimizing NS we achieved a significant improvement in the thermoelectric figure of merit of GNRs-NPs. This research can be a route towards enhancing the TE properties of GNRs, making them potential candidates for future thermoelectronics.

AB - In this paper we study the thermoelectric (TE) properties of graphene nano-ribbons (GNRs) with incorporated nanopores (NPs), and present a nanopore-engineering approach for enhancing their TE properties. The nearest neighbor tight binding (TB) model and Non equilibrium Green's function (NEGF) method were employed to obtain the electron transmission spectra. For phonon calculations, Tersoff potential along with Landaur formalism were used. We found a direct relationship between pore width and phononic thermal conductivity. The dependence of other parameters like Seebeck coefficient and electrical conductance on pore width was not so straight forward, and showed a clear dependence on the number of atoms in the side channel (NS). By optimizing NS we achieved a significant improvement in the thermoelectric figure of merit of GNRs-NPs. This research can be a route towards enhancing the TE properties of GNRs, making them potential candidates for future thermoelectronics.

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Enhanced thermoelectric properties of engineered graphene nano-ribbons with nano-pores

Abstract

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Bibliographical note

Keywords

ASJC Scopus subject areas

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