Thermoelectric Properties of Ductile Doped Ag2S for Low Power Factor Application

Author:

Hricková Gabriela1,Mihok František2,Lukács Peter1,Džunda Róbert3

Affiliation:

1. Department of Technologies in Electronics, Faculty of Electrical Engineering and Informatics , Technical University of Košice , Park Komenského 2 , Košice , Slovak Republic , Tel. +421 55 602 3199

2. Faculty of Materials, Metallurgy and Recycling , Technical University of Košice , Letná 9 , Košice , Slovak Republic

3. Institute of Materials Research, Slovak Academy of Science Košice , Watsonova 47 , Košice , Slovak Republic

Abstract

Abstract Wearable technologies encompass a diverse range of devices integral to our daily routines. Thermoelectric materials, known for their ability to convert heat differentials into electrical energy, are driving advancements in the automotive, aerospace, consumer electronics, and healthcare sectors. In automotive and aerospace, thermoelectric generators (TEGs) are utilized to enhance fuel efficiency and power onboard systems. In consumer electronics, thermoelectric coolers regulate temperature in devices like laptops and smartphones while also powering wearable technologies and sensors. Healthcare applications include wearable health monitors and drug delivery systems, utilizing thermoelectric devices for thermal management and diagnostics. Smartwatches, intelligent bracelets, sunglasses, and blood pressure sensors exemplify this trend, harnessing the potential of thermoelectric materials to generate power from temperature differentials. Ag2S is a ductile thermoelectric material with a potential use in thermoelectric devices. The aim of the article was to characterize the thermoelectric Ag2S -based material and describe the impact of chosen dopants on material properties. The Seebeck coefficient of pure Ag2S is -1051 μV.K−1, the Seebeck coefficient of Sb-doped material is −2.54 μV.K−1, and that of Ge-doped material is more positive at −87 μV.K−1. Material doped with Ge shows better thermoelectric properties.

Publisher

Walter de Gruyter GmbH

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