000K utf8 1100 2016$c2016-12-22 1500 eng 2050 urn:nbn:de:hbz:464-20201207-153417-8 2051 10.1039/C6DT04323B 3000 Schaumann, Julian 3010 Hagemann, Ulrich 3010 Heimann, Stefan 3010 Loor, Manuel 3010 Maculewicz, Franziska 3010 Mudring, Anja-Verena 3010 Schierning, Gabi 3010 Schulz, Stephan 3010 Ünal, Derya 4000 Improving the zT value of thermoelectrics by nanostructuring: tuning the nanoparticle morphology of Sb2Te3 by using ionic liquids$hRoyal Society of Chemistry (RSC) [Schaumann, Julian] 4030 $nRoyal Society of Chemistry (RSC) 4209 A systematic study on the microwave-assisted thermolysis of the single source precursor (Et2Sb)2Te (1) in different asymmetric 1-alkyl-3-methylimidazolium- and symmetric 1,3-dialkylimidazolium-based ionic liquids (ILs) reveals the distinctive role of both the anion and the cation in tuning the morphology and microstructure of the resulting Sb2Te3 nanoparticles as evidenced by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and X-ray photoelectron spectroscopy (XPS). A comparison of the electrical and thermal conductivities as well as the Seebeck coefficient of the Sb2Te3 nanoparticles obtained from different ILs reveals the strong influence of the specific IL, from which C4mimI was identified as the best solvent, on the thermoelectric properties of as-prepared nanosized Sb2Te3. This work provides design guidelines for ILs, which allow the synthesis of nanostructured thermoelectrics with improved performances. 4950 https://doi.org/10.1039/C6DT04323B$xR$3Volltext$534 4950 https://nbn-resolving.org/urn:nbn:de:hbz:464-20201207-153417-8$xR$3Volltext$534 4961 https://duepublico2.uni-due.de/receive/duepublico_mods_00073537 5051 540