Research Article

Range Determination of the Influence of Carrier Concentration on Lattice Thermal Conductivity for Bulk Si and Nanowires

Volume: 4 Number: 1 June 30, 2020
EN

Range Determination of the Influence of Carrier Concentration on Lattice Thermal Conductivity for Bulk Si and Nanowires

Abstract

Mathematical modeling has been extended to simulate some physical systems to calculate some parameters that may need a sophisticated cost or may have some obstacles to be measured directly with an experimental method. In this study, the Modified Callaway Model has been used to calculate size dependence lattice thermal conductivity (LTC), and the influence of carrier concentration for bulk Si and its nanowires (NWs) with diameters of 22, 37, 56, and 115 nm has been investigated. Calculations were performed from 3K to 1600K for all cases. The effects of carrier concentration on LTC has found to begin from (1016 cm-1) for the bulk state and that increased to (1024 cm-1) for the NW with a diameter of 22 nm. The temperature that the maximum effect of carrier concentration can occur, has found to be at (10 K) for the bulk, and that increased to (340 K) for the (22 nm) Si NW.

Keywords

Supporting Institution

Salahaddin-Erbil University

Project Number

7/29/2359-2472017

References

  1. [1] M. Omar, Structural and Thermal Properties of Elementary and Binary Tetrahedral Semiconductor Nanoparticles, Int J Thermophys 37(1) (2016) 11. doi:10.1007/s10765-015-2026-9.
  2. [2] I. N. Qader, M. Omar, Carrier concentration effect and other structure-related parameters on lattice thermal conductivity of Si nanowires, Bull Mater Sci 40(3) (2017) 599-607. doi:10.1007/s12034-017-1393-1.
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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Publication Date

June 30, 2020

Submission Date

December 10, 2019

Acceptance Date

May 5, 2020

Published in Issue

Year 1970 Volume: 4 Number: 1

APA
Qader, I. N., Abdullah, B., & Omar, M. (2020). Range Determination of the Influence of Carrier Concentration on Lattice Thermal Conductivity for Bulk Si and Nanowires. Aksaray University Journal of Science and Engineering, 4(1), 30-42. https://doi.org/10.29002/asujse.657837

Cited By

Aksaray J. Sci. Eng. | e-ISSN: 2587-1277 | Period: Biannually | Founded: 2017 | Publisher: Aksaray University | https://asujse.aksaray.edu.tr




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