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Communication dans un congrès
Composites of zinc phosphate glass/metal: New materials for thermoelectricity and solar cell devices
Abstract : This work reports a study on thermoelectricity in new composites zinc-phosphate glasses/cobalt. The obtained Seebeck coefficient (S) changes a sign from a high positive to negative values below and above the percolation threshold, respectively, showing p-n type conducting phase transition. Thus, the Seebeck coefficient measurements above the percolation threshold as function of temperature showed respectively an original conducting to insulating phase transition at T=420K, linked with a high negative value of S≤−8000µV/K, giving rise to the highest power factor PF=σS2≈8×10−3W.m−1.K−2. The thermal measurements confirm this transition and indicate a dilation of matrix around this temperature. Such materials with high Seebeck coefficient could be used as new materials for thermoelectricity applications. In addition, the p-n transition in these materials my fined useful application in p-n junction devices.
https://hal-unilim.archives-ouvertes.fr/hal-01281894
Contributeur : Bruno Lucas Connectez-vous pour contacter le contributeur
Soumis le : mercredi 2 mars 2016 - 23:40:26
Dernière modification le : mercredi 22 décembre 2021 - 11:58:04
Contributeur : Bruno Lucas Connectez-vous pour contacter le contributeur
Soumis le : mercredi 2 mars 2016 - 23:40:26
Dernière modification le : mercredi 22 décembre 2021 - 11:58:04
