Microstructure and composition engineering Yb single-filled CoSb3 for high thermoelectric and mechanical performances
Source abstract
Abstract
A broad tunability of the thermoelectric and mechanical properties of CoSb 3 has been demonstrated by adjusting the composition with the addition of an increasing number of elements. However, such a strategy may negatively impact processing repeatability and composition control. In this work, single-element-filled skutterudite is engineered to have high thermoelectric and mechanical performances. Increased Yb filling fraction is found to increase phonon scattering, whereas cryogenic grinding contributes additional microstructural scattering. A peak zT of 1.55 and an average zT of about 1.09, which is comparable to the reported results of multiple-filled SKDs, are realized by the combination of simple composition and microstructure engineering. Furthermore, the mechanical properties of Yb single-filled CoSb 3 skutterudite are improved by manipulation of the microstructure through cryogenic grinding. These findings highlight the realistic prospect of producing high-performance thermoelectric materials with reduced compositional complexity.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Heusler alloys: electronic and magnetic properties · Thermal properties of materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Thermoelectric materials step up10.1038/nmat4643 ↗
2. Advances in thermoelectric materials research: looking back and moving forward10.1126/science.aak9997 ↗
3. Realization of high thermoelectric performance in n-type partially filled skutterudites10.1557/jmr.2011.84 ↗
4. High figure of merit in partially filled ytterbium skutterudite materials10.1063/1.1311597 ↗
5. Convergence of multi-valley bands as the electronic origin of high thermoelectric performance in CoSb3 skutterudites10.1038/nmat4430 ↗
6. High-performance n-type YbxCo4Sb12: from partially filled skutterudites towards composite thermoelectrics10.1038/am.2016.77 ↗
7. Preparation and thermoelectric properties of high-performance Sb additional Yb0.2Co4Sb12+y bulk materials with nanostructure10.1063/1.2936277 ↗
8. Anomalous barium filling fraction and n-type thermoelectric performance of BayCo4Sb1210.1063/1.1388162 ↗
9. Improving thermoelectric performance of caged compounds through light-element filling10.1063/1.3182800 ↗
10. Low thermal conductivity and high thermoelectric figure of merit in n-type BaxYbyCo4Sb12 double-filled skutterudites10.1063/1.2920210 ↗
11. Enhanced thermoelectric performance in barium and indium double-filled skutterudite bulk materials via orbital hybridization induced by indium filler10.1021/ja8089334 ↗
12. Grain boundary engineering with nano-scale InSb producing high performance InxCeyCo4Sb12+z skutterudite thermoelectrics10.1016/j.jmat.2017.07.003 ↗
13. Multiple-filled skutterudites: high thermoelectric figure of merit through separately optimizing electrical and thermal transports10.1021/ja111199y ↗
14. n-Type skutterudites (R,Ba,Yb)yCo4Sb12 (R=Sr, La, Mm, DD, SrMm, SrDD) approaching ZT≈2.010.1016/j.actamat.2013.09.039 ↗
15. Realizing high-performance thermoelectric power generation through grain boundary engineering of skutterudite-based nanocomposites10.1016/j.nanoen.2017.10.003 ↗
16. Low-cost and environmentally benign selenides as promising thermoelectric materials10.1016/j.jmat.2018.07.001 ↗
17. Microstructure engineering beyond SnSe1-xSx solid solution for high thermoelectric performance10.1016/j.jmat.2018.09.001 ↗
18. Multi-scale microstructural thermoelectric materials: transport behavior, non-equilibrium preparation, and applications10.1002/adma.201602013 ↗
19. Melt-centrifuged (Bi,Sb)2Te3: engineering microstructure toward high thermoelectric efficiency10.1002/adma.201802016 ↗
20. Lattice softening significantly reduces thermal conductivity and leads to high thermoelectric efficiency10.1002/adma.201900108 ↗
21. Skutterudite with graphene-modified grain-boundary complexion enhances zT enabling high-efficiency thermoelectric device10.1039/C6EE02467J ↗
22. Realizing a thermoelectric conversion efficiency of 12% in bismuth telluride/skutterudite segmented modules through full-parameter optimization and energy-loss minimized integration10.1039/C7EE00447H ↗
23. High thermoelectric performance of Yb0.26Co4Sb12/yGaSb nanocomposites originating from scattering electrons of low energy10.1016/j.actamat.2010.03.025 ↗
24. Thermoelectric property enhancement in Yb-doped n-type skutterudites YbxCo4Sb1210.1016/j.actamat.2014.05.019 ↗
25. Grain boundary engineering for achieving high thermoelectric performance in n-type skutterudites10.1002/aenm.201602582 ↗
26. Synthesis of YbyCo4Sb12∕Yb2O3 composites and their thermoelectric properties10.1063/1.2345249 ↗
27. Electrical and thermal transport properties of YbxCo4Sb12 filled skutterudites with ultrahigh carrier concentrations10.1063/1.4936829 ↗
28. Temperature dependent solubility of Yb in Yb-CoSb3 skutterudite and its effect on preparation, optimization and lifetime of thermoelectrics10.1016/j.jmat.2015.03.008 ↗
29. ASTM E112-13 · 2013
30. Construction of a 3D-rGO network-wrapping architecture in a YbyCo4Sb12/rGO composite for enhancing the thermoelectric performance10.1039/C5TA01594D ↗
31. Creation of Yb2O3 Nanoprecipitates through an oxidation process in bulk Yb-filled skutterudites10.1007/s11664-012-2370-5 ↗
32. Tang · 2015 · 12
33. Grain boundary dominated charge transport in Mg3Sb2-based compounds10.1039/C7EE03326E ↗
34. Minimum thermal conductivity in the context of diffuson-mediated thermal transport10.1039/C7EE03256K ↗
35. High thermoelectric figure of merit in mesostructured In0.25Co4Sb12 n-type skutterudite10.1016/j.jallcom.2017.11.195 ↗
36. High-pressure synthesis of phonon-glass electron-crystal featured thermoelectric LixCo4Sb1210.1016/j.actamat.2011.10.059 ↗
37. Solubility study of Yb inn-type skutterudites YbxCo4Sb12 and their enhanced thermoelectric properties10.1103/PhysRevB.80.115329 ↗
38. Figure of merit ZT of a thermoelectric device defined from materials properties10.1039/C7EE02007D ↗
39. Grain refinement and improvement in mechanical properties of Nb-Al-Si intermetallic alloys10.2355/isijinternational.46.875 ↗
40. Wachtman · 2009
41. Size-effects in textural strengthening of hierarchical magnesium nano-composites10.1016/j.msea.2012.07.080 ↗
42. Mechanically robust BiSbTe alloys with superior thermoelectric performance: a case study of stable hierarchical nanostructured thermoelectric materials10.1002/aenm.201401391 ↗
43. The effect of short carbon fibers on the thermoelectric and mechanical properties of p-type CeFe4Sb12 skutterudite composites10.1016/j.matdes.2014.11.050 ↗
44. Effects of nanoparticle size on the thermoelectric and mechanical properties of skutterudite nanocomposites10.1007/s11664-014-2987-7 ↗
45. Effect of TiC nanoinclusions on thermoelectric and mechanical performance of polycrystalline In4Se2.6510.1111/jace.13773 ↗