Thermoelectric properties of silicon oxide

The article describes the results obtained from the study of the thermal conductivity of granulated silicon particles covered with a layer of silicon oxide. The results of the study show that the thermal conductivity of granulated silicon increases from λ ~1,12 W/mK to λ ~2,74 W/mK at T~300÷600 K, w...

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Main Authors: Olimov Lutfiddin, Khojimatov Islombek
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/95/e3sconf_emmft2023_01022.pdf
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author Olimov Lutfiddin
Khojimatov Islombek
author_facet Olimov Lutfiddin
Khojimatov Islombek
author_sort Olimov Lutfiddin
collection DOAJ
description The article describes the results obtained from the study of the thermal conductivity of granulated silicon particles covered with a layer of silicon oxide. The results of the study show that the thermal conductivity of granulated silicon increases from λ ~1,12 W/mK to λ ~2,74 W/mK at T~300÷600 K, which is consistent with the results of silicon oxide (λSiO2~1 W/mK). It was also observed that the electrical conductivity changes in the range of σ~0,0038÷0,017 (Ohm·sm)-1. The results of the study were explained based on the formation of a layer of silicon oxide on the surface of granulated silicon particles obtained by powder technology. Temperature-induced thermal voltaic effects are observed in the silicon oxide layer. This process depends on the formation of electron-hole pairs in cases with localized access, which leads to an increase in parameters λ and σ.
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spelling doaj.art-a4c84d125d0442d2b73702ceb4515fa62024-01-26T10:35:54ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014580102210.1051/e3sconf/202345801022e3sconf_emmft2023_01022Thermoelectric properties of silicon oxideOlimov Lutfiddin0Khojimatov Islombek1Andijan Machine Building instituteAndijan Machine Building instituteThe article describes the results obtained from the study of the thermal conductivity of granulated silicon particles covered with a layer of silicon oxide. The results of the study show that the thermal conductivity of granulated silicon increases from λ ~1,12 W/mK to λ ~2,74 W/mK at T~300÷600 K, which is consistent with the results of silicon oxide (λSiO2~1 W/mK). It was also observed that the electrical conductivity changes in the range of σ~0,0038÷0,017 (Ohm·sm)-1. The results of the study were explained based on the formation of a layer of silicon oxide on the surface of granulated silicon particles obtained by powder technology. Temperature-induced thermal voltaic effects are observed in the silicon oxide layer. This process depends on the formation of electron-hole pairs in cases with localized access, which leads to an increase in parameters λ and σ.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/95/e3sconf_emmft2023_01022.pdf
spellingShingle Olimov Lutfiddin
Khojimatov Islombek
Thermoelectric properties of silicon oxide
E3S Web of Conferences
title Thermoelectric properties of silicon oxide
title_full Thermoelectric properties of silicon oxide
title_fullStr Thermoelectric properties of silicon oxide
title_full_unstemmed Thermoelectric properties of silicon oxide
title_short Thermoelectric properties of silicon oxide
title_sort thermoelectric properties of silicon oxide
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/95/e3sconf_emmft2023_01022.pdf
work_keys_str_mv AT olimovlutfiddin thermoelectricpropertiesofsiliconoxide
AT khojimatovislombek thermoelectricpropertiesofsiliconoxide