TY - JOUR
T1 - Production and development of ZnAlGeO semiconducting materials for thermoelectric generators in potential aerospace applications
AU - Sari, Mucahit Abdullah
AU - Kilinc, Enes
AU - Uysal, Fatih
AU - Kurt, Huseyin
AU - Celik, Erdal
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
PY - 2024/11
Y1 - 2024/11
N2 - 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.)
AB - 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.)
KW - Semiconductivity
KW - Sol-gel
KW - Thermoelectric
KW - ZnAlGeO
UR - http://www.scopus.com/inward/record.url?scp=85203341817&partnerID=8YFLogxK
U2 - 10.1007/s10971-024-06526-2
DO - 10.1007/s10971-024-06526-2
M3 - Article
AN - SCOPUS:85203341817
SN - 0928-0707
VL - 112
SP - 403
EP - 418
JO - Journal of Sol-Gel Science and Technology
JF - Journal of Sol-Gel Science and Technology
IS - 2
ER -