Enhanced Thermoelectric Performance in Ca-doped AgSbTe2
DOI:
https://doi.org/10.54097/35sqr584Abstract
Thermoelectric materials play a crucial role in applications such as recovering waste heat and refrigeration. We report a thermoelectric figure of merit (zT) of 1.17 at 623 K for AgSb1-xCaxTe2, representing a 31% enhancement compared to pristine AgSbTe2. The improved thermoelectric performance arises from enhancements in both the power factor and lattice thermal conductivity. Dopant substitution of element Ca at the Sb site in AgSbTe2 suppresses the formation of Ag2Te and increases the concentration of p-type charge carriers, leading to enhanced electrical transport properties. Additionally, Ca doping introduces solid solution point defects that enhance phonon scattering, consequently reducing the lattice thermal conductivity of the sample. This work demonstrates that a doping effectively modulates the electrical and thermal transport properties of AgSbTe2, thereby realizing improvements in thermoelectric performance.
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A. Bhui, M. Dutta, M. Mukherjee, K. S. Rana, A. K. Singh, A. Soni, K. Biswas. Chemistry of Materials. 33, 8 (2021).
K. Biswas, J. He, I. D. Blum, C.-I. Wu, T. P. Hogan, D. N. Seidman, V. P. Dravid, M. G. Kanatzidis. Nature. 489, 7416 (2012).
Y.-P. Wang, B.-C. Qin, D.-Y. Wang, T. Hong, X. Gao, L.-D. Zhao. Rare Metals. 40, 10 (2021).
G. Tan, L.-D. Zhao, M. G. Kanatzidis. Chemical Reviews. 116, 19 (2016).
X. Zhou, Y. Yan, X. Lu, H. Zhu, X. Han, G. Chen, Z. Ren. Materials Today. 21, 9 (2018).
M. Li, Y. Zhang, T. Zhang, Y. Zuo, K. Xiao, J. Arbiol, J. Llorca, Y. Liu, A. Cabot. Nanomaterials. 11, 7 (2021).
Y. Pei, X. Shi, A. LaLonde, H. Wang, L. Chen, G. J. Snyder. Nature. 473, 7345 (2011).
H. Wu, C. Chang, D. Feng, Y. Xiao, X. Zhang, Y. Pei, L. Zheng, D. Wu, S. Gong, Y. Chen, J. He, M. G. Kanatzidis, L.-D. Zhao. Energy & Environmental Science. 8, 11 (2015).
L. D. Zhao, H. J. Wu, S. Q. Hao, C. I. Wu, X. Y. Zhou, K. Biswas, J. Q. He, T. P. Hogan, C. Uher, C. Wolverton, V. P. Dravid, M. G. Kanatzidis. Energy & Environmental Science. 6, 11 (2013).
M. Hong, Z.-G. Chen, L. Yang, Z.-M. Liao, Y.-C. Zou, Y.-H. Chen, S. Matsumura, J. Zou. Advanced Energy Materials. 8, 9 (2018).
Y. Xiao, H. Wu, J. Cui, D. Wang, L. Fu, Y. Zhang, Y. Chen, J. He, S. J. Pennycook, L.-D. Zhao. Energy & Environmental Science. 11, 9 (2018).
X. Qian, H. Wu, D. Wang, Y. Zhang, J. Wang, G. Wang, L. Zheng, S. J. Pennycook, L.-D. Zhao. Energy & Environmental Science. 12, 6 (2019).
Y. Zhang, Z. Li, S. Singh, A. Nozariasbmarz, W. Li, A. Genc, Y. Xia, L. Zheng, S. H. Lee, S. K. Karan, G. K. Goyal, N. Liu, S. M. F. Mohan, Z. Mao, A. Cabot, C. Wolverton, B. Poudel, S. Priya. Advanced Materials. (2023).
C. M. Jaworski, V. Kulbachinskii, J. P. Heremans. Physical Review B. 80, 23 (2009).
T. Zhu, L. Hu, X. Zhao, J. He. Advanced Science. 3, 7 (2016).
K. Li, Z. Li, L. Yang, C. Xiao, Y. Xie. Inorganic Chemistry. 58, 14 (2019).
B.-K. Min, B.-S. Kim, M.-W. Oh, B.-K. Ryu, J.-E. Lee, S.-J. Joo, S.-D. Park, H.-W. Lee, H.-s. Lee. Journal of the Korean Physical Society. 68, 1 (2016).
R. Mohanraman, R. Sankar, F. C. Chou, C. H. Lee, Y.-Y. Chen. Journal of Applied Physics. 114, 16 (2013).
J. Zhang, D. Wu, D. He, D. Feng, M. Yin, X. Qin, J. He. Advanced Materials. 29, 39 (2017).
R. Mohanraman, R. Sankar, F.-C. Chou, C.-H. Lee, Y. Iizuka, I. P. Muthuselvam, Y.-Y. Chen. Apl Materials. 2, 9 (2014).
B. Cai, J. Pei, J. Dong, H.-L. Zhuang, J. Gu, Q. Cao, H. Hu, Z. Lin, J.-F. Li. Science China-Materials. 64, 10 (2021).
W. Lu, X. Lai, Q. Liu, Z. He, H. Zhao, J. Jian. Ceramics International. 47, 18 (2021).
B. Du, H. Li, J. Xu, X. Tang, C. Uher. Journal of Solid State Chemistry. 184, 1 (2011).
H. Wang, J.-F. Li, M. Zou, T. Sui. Applied Physics Letters. 93, 20 (2008).
Y. Wu, Q. Liang, X. Zhao, H. Wu, P. Zi, Q. Tao, L. Yu, X. Su, J. Wu, Z. Chen, Q. Zhang, X. Tang. Acs Applied Materials & Interfaces. 14, 2 (2022).
M. Samanta, K. Biswas. Chemistry of Materials. 32, 20 (2020).
M. Samanta, K. Pal, P. Pal, U. V. Waghmare, K. Biswas. Journal of the American Chemical Society. 140, 17 (2018).
J. Ma, O. Delaire, A. F. May, C. E. Carlton, M. A. McGuire, L. H. VanBebber, D. L. Abernathy, G. Ehlers, T. Hong, A. Huq, W. Tian, V. M. Keppens, Y. Shao-Horn, B. C. Sales. Nature Nanotechnology. 8, 6 (2013).
D. T. Morelli, V. Jovovic, J. P. Heremans. Physical Review Letters. 101, 3 (2008).
M. D. Nielsen, V. Ozolins, J. P. Heremans. Energy & Environmental Science. 6, 2 (2013).
S. Roychowdhury, T. Ghosh, R. Arora, M. Samanta, L. Xie, N. K. Singh, A. Soni, J. He, U. V. Waghmare, K. Biswas. Science. 371, 6530 (2021).
T. Ghosh, S. Roychowdhury, M. Dutta, K. Biswas. Acs Energy Letters. 6, 8 (2021).
S. Roychowdhury, R. Panigrahi, S. Perumal, K. Biswas. Acs Energy Letters. 2, 2 (2017).
R. Du, G. Zhang, M. Hao, X. Xuan, P. Peng, P. Fan, H. Si, G. Yang, C. Wang. Acs Applied Materials & Interfaces. 15, 7 (2023).
H. J. Wu, T. W. Lan, S. W. Chen, Y. Y. Chen, T. Day, G. J. Snyder. Acta Materialia. 93, (2015).
H.-S. Kim, Z. M. Gibbs, Y. Tang, H. Wang, G. J. Snyder. Apl Materials. 3, 4 (2015).
R. W. Armstrong, J. W. Faust, Jr., W. A. Tiller. Journal of Applied Physics. 31, 11 (2004).
S. N. Zhang, T. J. Zhu, S. H. Yang, C. Yu, X. B. Zhao. Journal of Alloys and Compounds. 499, 2 (2010).
R. Pathak, L. Xie, S. Das, T. Ghosh, A. Bhui, K. Dolui, D. Sanyal, J. He, K. Biswas. Energy & Environmental Science. 16, 7 (2023).
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