Hierarchical Architecturing for Layered Thermoelectric Sulfides and Chalcogenides
AbstractSulfides are promising candidates for environment-friendly and cost-effective thermoelectric materials. In this article, we review the recent progress in all-length-scale hierarchical architecturing for sulfides and chalcogenides, highlighting the key strategies used to enhance their thermoelectric performance. We primarily focus on TiS2-based layered sulfides, misfit layered sulfides, homologous chalcogenides, accordion-like layered Sn chalcogenides, and thermoelectric minerals. CS2 sulfurization is an appropriate method for preparing sulfide thermoelectric materials. At the atomic scale, the intercalation of guest atoms/layers into host crystal layers, crystal-structural evolution enabled by the homologous series, and low-energy atomic vibration effectively scatter phonons, resulting in a reduced lattice thermal conductivity. At the nanoscale, stacking faults further reduce the lattice thermal conductivity. At the microscale, the highly oriented microtexture allows high carrier mobility in the in-plane direction, leading to a high thermoelectric power factor. View Full-Text
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Jood, P.; Ohta, M. Hierarchical Architecturing for Layered Thermoelectric Sulfides and Chalcogenides. Materials 2015, 8, 1124-1149.
Jood P, Ohta M. Hierarchical Architecturing for Layered Thermoelectric Sulfides and Chalcogenides. Materials. 2015; 8(3):1124-1149.Chicago/Turabian Style
Jood, Priyanka; Ohta, Michihiro. 2015. "Hierarchical Architecturing for Layered Thermoelectric Sulfides and Chalcogenides." Materials 8, no. 3: 1124-1149.