Production and development of ZnAlGeO semiconducting materials for thermoelectric generators in potential aerospace applications

Mucahit Abdullah Sari, Enes Kilinc*, Fatih Uysal, Huseyin Kurt, Erdal Celik

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

Özet

This research aims to produce and develop semiconducting thermoelectric materials for thermoelectric generators in aerospace applications. In this context, ZnAlGeO powders were synthesized via the sol-gel method using precursor materials and a 20% toluene solution in ethanol as the solvent. Glacial acetic acid was added to accelerate gel formation. The pH and turbidity values of prepared solutions were measured using a pH meter and turbidimeter. After gelation, the obtained xerogel was dried at 200 °C for 9 h to remove moisture and undesired gases. Dried powders were calcined at 600 °C for 4 h in air, resulting in final ZnAlGeO materials. The pellets underwent thermal processing for 36 h at a temperature of 1350 °C, targeting the production of bulk samples within the n-type semiconductor category. Extensive characterization, including thermal, structural, microstructural, and thermoelectric properties, was conducted using various techniques such as DTA-TG, FTIR, XRD, XPS, SEM, and thermoelectric measurement devices. The study concludes that the produced semiconducting ceramic materials exhibit efficiency for thermoelectric generator production. Graphical Abstract: (Figure presented.)

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)403-418
Sayfa sayısı16
DergiJournal of Sol-Gel Science and Technology
Hacim112
Basın numarası2
DOI'lar
Yayın durumuYayınlandı - Kas 2024

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Publisher Copyright:
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.

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