%0 Journal Article
%T Thermoelectric properties and stability of glasses in the Cu-As-Te system
%+ Institut Jean Lamour (IJL)
%+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM)
%+ Science des Procédés Céramiques et de Traitements de Surface (SPCTS)
%+ Institut de Chimie et des Matériaux Paris-Est (ICMPE)
%+ Laboratoire Charles Coulomb (L2C)
%+ Instituto Superior Técnico
%A Vaney, Jean-Baptiste
%A Carreaud, Julie
%A Morin, Cédric
%A Delaizir, Gaëlle
%A Piarristeguy, Andrea
%A Colas, Maggy
%A Cornette, Julie
%A Le Parc, Rozenn
%A Alleno, Eric
%A Monnier, Judith
%A Ribes, Michel
%A Escalier, Raphael
%A Pradel, Annie
%A Goncalves, Antonio P.
%A Lopes, Elsa B.
%A Candolfi, Christophe
%A Lenoir, Bertrand
%< avec comité de lecture
%@ 0002-7820
%J Journal of the American Ceramic Society
%I Wiley
%V 100
%P 2840-2851
%8 2017-07-01
%D 2017
%R 10.1111/jace.14811
%K Chalcogenides
%K Glass
%K Thermoelectric properties
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
%Z Chemical Sciences/Material chemistryJournal articles
%X Chalcogenide glasses and more importantly their glass-ceramics counterparts have been an interesting but very peculiar class of thermoelectric materials, with inherently low thermal conductivity (< 0.3 W/m.K). In this study, we report on the fabrication of glasses in the ternary system Cu-As-Te (Cu<sub>x</sub>As<sub>55-x</sub>Te<sub>45</sub> [5 ≤ x ≤ 20], Cu<sub>15</sub>As<sub>85-y</sub>Te<sub>y</sub> [45 ≤ y ≤ 70], and Cu<sub>20</sub>As<sub>80-y</sub>Te<sub>y</sub> [45 ≤ y ≤ 65]) by melt-quenching and subsequent spark plasma sintering treatment. Their thermal and structural properties have been studied by differential scanning calorimetry and Raman spectroscopy, leading to give insights into the structural evolution of the glassy matrix. Coupling this information with the analysis of their electrical transport properties allowed us to deepen further our understanding of the compositional effect on their thermoelectric properties, and indirectly how the evolution of their electronic band structure is at play. Despite exhibiting low ZT values by themselves, Cu-As-Te glasses may still be interesting candidates for thermoelectricity through partial crystallization for which knowing the relationship between composition and properties remains essential.
%G English
%L hal-01556323
%U https://hal.science/hal-01556323
%~ UNILIM
%~ CNRS
%~ ENSC-MONTPELLIER
%~ ICG
%~ SPCTS
%~ L2C
%~ IPAM
%~ UPEC
%~ ICMPE
%~ UNIV-LORRAINE
%~ INC-CNRS
%~ IJL-UL
%~ MIPS
%~ CHIMIE
%~ UNIV-MONTPELLIER
%~ IRCER
%~ TEST-HALCNRS
%~ ANR
%~ IMPEO
%~ UM-2015-2021
%~ IJL-204