article published yes Kosuke Sato author Saurabh Singh author 12d625da-9cb3-11ed-9667-af09d37d3f0a0000-0003-2209-5269 Itsuki Yamazaki author Keisuke Hirata author Artoni Kevin R. Ang author Masaharu Matsunami author Tsunehiro Takeuchi author MaIb department The effects of the partial V-substitution for Ag on the thermoelectric (TE) properties are investigated for a flexible semiconducting compound Ag2S0.55Se0.45. Density functional theory calculations predict that such a partial V-substitution constructively modifies the electronic structure near the bottom of the conduction band to improve the TE performance. The synthesized Ag1.97V0.03S0.55Se0.45 is found to possess a TE dimensionless figure-of-merit (ZT) of 0.71 at 350 K with maintaining its flexible nature. This ZT value is relatively high in comparison with those reported for flexible TE materials below 360 K. The increase in the ZT value is caused by the enhanced absolute value of the Seebeck coefficient with less significant variation in electrical resistivity. The high ZT value with the flexible nature naturally allows us to employ the Ag1.97V0.03S0.55Se0.45 as a component of flexible TE generators. https://research-explorer.ista.ac.at/download/14777/14792/2023_AIPAdvances_Sato.pdf application/pdfno https://creativecommons.org/licenses/by/4.0/ AIP Publishing2023 eng General Physics and Astronomy 2158-3226 00111491720000510.1063/5.0171888 1312 Sato K, Singh S, Yamazaki I, et al. Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. <i>AIP Advances</i>. 2023;13(12). doi:<a href="https://doi.org/10.1063/5.0171888">10.1063/5.0171888</a> K. Sato <i>et al.</i>, “Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag,” <i>AIP Advances</i>, vol. 13, no. 12. AIP Publishing, 2023. K. Sato, S. Singh, I. Yamazaki, K. Hirata, A.K.R. Ang, M. Matsunami, T. Takeuchi, AIP Advances 13 (2023). Sato K, Singh S, Yamazaki I, Hirata K, Ang AKR, Matsunami M, Takeuchi T. 2023. Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. AIP Advances. 13(12), 125206. Sato, K., Singh, S., Yamazaki, I., Hirata, K., Ang, A. K. R., Matsunami, M., &#38; Takeuchi, T. (2023). Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. <i>AIP Advances</i>. AIP Publishing. <a href="https://doi.org/10.1063/5.0171888">https://doi.org/10.1063/5.0171888</a> Sato, Kosuke, et al. “Improvement of Thermoelectric Performance of Flexible Compound Ag2S0.55Se0.45 by Means of Partial V-Substitution for Ag.” <i>AIP Advances</i>, vol. 13, no. 12, 125206, AIP Publishing, 2023, doi:<a href="https://doi.org/10.1063/5.0171888">10.1063/5.0171888</a>. Sato, Kosuke, Saurabh Singh, Itsuki Yamazaki, Keisuke Hirata, Artoni Kevin R. Ang, Masaharu Matsunami, and Tsunehiro Takeuchi. “Improvement of Thermoelectric Performance of Flexible Compound Ag2S0.55Se0.45 by Means of Partial V-Substitution for Ag.” <i>AIP Advances</i>. AIP Publishing, 2023. <a href="https://doi.org/10.1063/5.0171888">https://doi.org/10.1063/5.0171888</a>. 147772024-01-10T09:26:08Z2024-10-09T21:07:49Z