A conceptional approach to materials for resistivity switching and thermoelectrics

作者：Osters Oliver; Bawohl Melanie; Bobet Jean Louis; Chevalier Bernard; Decourt Rodolphe; Nilges Tom^*

来源：Solid State Sciences, 2011, 13(5): 944-947.

DOI：10.1016/j.solidstatesciences.2011.02.012

• Resistivity switch
• Thermoelectric properties
• Silver-(poly)chalcogenidehalides

Recently silver(I)-(poly)chalcogenides have received special interest in energy conversion materials because of their thermoelectric and resistivity switching properties. In order to understand these features, a new topological principle has been developed, which is an useful tool to plan new synthesis strategies and to vary functional properties. It has been shown that anion substitution is powerful tool to tune the physical properties in terms of a thermoelectric performance optimization. Herein we report on the recently introduced substance class of silver(I)-(poly)chalcogenidehalides and the well-established class of silver(I)-chalcogenidehalides. We focus our report on the electrochemical behaviour of all known silver-(poly)telluridehalides Ag(10)Te(4)Br(3), Ag(23)Te(12)Br. Ag(20)Te(10)BrI,Ag(5)Te(2)Cl and selected substituted phases.

• 出版日期2011-5