The effect of extended vacancies on the thermal properties of armchair garaphene nanoribbons

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Farghadan r.; Masoodi nia f.

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Journal: Iranian Journal of Physics Research Year:2018 | Volume:18 | Issue:2 Page(s): 322-329

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Information Journal Paper

Title

The effect of extended vacancies on the thermal properties of armchair garaphene nanoribbons

Author(s)

Farghadan r. | Masoodi nia f. | Issue Writer Certificate

Keywords

Extended VacanciesQ1

Armchair Graphene NanoribbonsQ1

Specific HeatQ2

Thermal ConductivityQ3

Abstract

This paper shows a theoretical study of the thermal properties of armchair grapehen nanoribbons in the presence of Extended Vacancies. Each graphene nanoribbons formed by superlattices with a periodic geometric structure, different size and symmetry of vacancies. The phonon dispersion, Specific Heat and Thermal Conductivity properties are described by a force-constant model and also by Landauer theory calculations. Our results show that the geometric structure of the vacancies and their positions have a significant roles in controlling the thermal properties, especially at low temperatures. Moreover, the out-of-plane and in-plane phonon modes exhibit a different role in the heat capacity and thermal phonon transport properties. Moreover, the out-of-plane phonon modes have more contribution in low temperature regime rather than in-plane phonon modes even in the presence of Extended Vacancies. The result may be useful for the design and improvement of thermal or thermoelectric nanodevices.

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APA: Copy

Farghadan, r., & Masoodi nia, f.. (2018). The effect of extended vacancies on the thermal properties of armchair garaphene nanoribbons. IRANIAN JOURNAL OF PHYSICS RESEARCH, 18(2 ), 322-329. SID. https://sid.ir/paper/1719/en

Vancouver: Copy

Farghadan r., Masoodi nia f.. The effect of extended vacancies on the thermal properties of armchair garaphene nanoribbons. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2018;18(2 ):322-329. Available from: https://sid.ir/paper/1719/en

IEEE: Copy

r. Farghadan, and f. Masoodi nia, “The effect of extended vacancies on the thermal properties of armchair garaphene nanoribbons,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 18, no. 2 , pp. 322–329, 2018, [Online]. Available: https://sid.ir/paper/1719/en

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