article published yes Christine Fiedler author bd3fceba-dc74-11ea-a0a7-c17f71817366 Mariano Calcabrini author 45D7531A-F248-11E8-B48F-1D18A9856A870000-0003-4566-5877 Yu Liu author 2A70014E-F248-11E8-B48F-1D18A9856A870000-0001-7313-6740 Maria Ibáñez author 43C61214-F248-11E8-B48F-1D18A9856A870000-0001-5013-2843 MaIb department ISTplus - Postdoctoral Fellowships project International IST Doctoral Program project HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of Semiconductors for Waste Heat Recovery project Production of thermoelectric materials from solution-processed particles involves the synthesis of particles, their purification and densification into pelletized material. Chemical changes that occur during each one of these steps render them performance determining. Particularly the purification steps, bypassed in conventional solid-state synthesis, are the cause for large discrepancies among similar solution-processed materials. In present work, the investigation focuses on a water-based surfactant free solution synthesis of SnSe, a highly relevant thermoelectric material. We show and rationalize that the number of leaching steps, purification solvent, annealing, and annealing atmosphere have significant influence on the Sn : Se ratio and impurity content in the powder. Such compositional changes that are undetectable by conventional characterization techniques lead to distinct consolidated materials with different types and concentration of defects. Additionally, the profound effect on their transport properties is demonstrated. We emphasize that understanding the chemistry and identifying key chemical species and their role throughout the process is paramount for optimizing material performance. Furthermore, we aim to demonstrate the necessity of comprehensive reporting of these steps as a standard practice to ensure material reproducibility. https://research-explorer.ista.ac.at/download/17052/18797/2024_AngewChemieIntern_Fiedler.pdf application/pdfno Wiley2024 eng 1433-7851 1521-3773 38623865 00122376840000110.1002/anie.202402628 6325 https://research-explorer.ista.ac.at/record/22626 Fiedler, C., Calcabrini, M., Liu, Y., &#38; Ibáñez, M. (2024). Unveiling crucial chemical processing parameters influencing the performance of solution-processed inorganic thermoelectric materials. <i>Angewandte Chemie International Edition</i>. Wiley. <a href="https://doi.org/10.1002/anie.202402628">https://doi.org/10.1002/anie.202402628</a> Fiedler C, Calcabrini M, Liu Y, Ibáñez M. 2024. Unveiling crucial chemical processing parameters influencing the performance of solution-processed inorganic thermoelectric materials. Angewandte Chemie International Edition. 63(25), e202402628. C. Fiedler, M. Calcabrini, Y. Liu, M. Ibáñez, Angewandte Chemie International Edition 63 (2024). Fiedler C, Calcabrini M, Liu Y, Ibáñez M. Unveiling crucial chemical processing parameters influencing the performance of solution-processed inorganic thermoelectric materials. <i>Angewandte Chemie International Edition</i>. 2024;63(25). doi:<a href="https://doi.org/10.1002/anie.202402628">10.1002/anie.202402628</a> C. Fiedler, M. Calcabrini, Y. Liu, and M. Ibáñez, “Unveiling crucial chemical processing parameters influencing the performance of solution-processed inorganic thermoelectric materials,” <i>Angewandte Chemie International Edition</i>, vol. 63, no. 25. Wiley, 2024. Fiedler, Christine, Mariano Calcabrini, Yu Liu, and Maria Ibáñez. “Unveiling Crucial Chemical Processing Parameters Influencing the Performance of Solution-Processed Inorganic Thermoelectric Materials.” <i>Angewandte Chemie International Edition</i>. Wiley, 2024. <a href="https://doi.org/10.1002/anie.202402628">https://doi.org/10.1002/anie.202402628</a>. Fiedler, Christine, et al. “Unveiling Crucial Chemical Processing Parameters Influencing the Performance of Solution-Processed Inorganic Thermoelectric Materials.” <i>Angewandte Chemie International Edition</i>, vol. 63, no. 25, e202402628, Wiley, 2024, doi:<a href="https://doi.org/10.1002/anie.202402628">10.1002/anie.202402628</a>. 170522024-05-26T22:00:58Z2026-08-07T10:54:20Z