The development of thermoelectric (TE) materials to replace Bi2Te3 alloys is emerging as a hot issue with the potential for wider practical applications. In particular, layered Zintl-phase materials, which can appropriately control carrier and phonon transport behaviors, are being considered as promising candidates. However, limited data have been reported on the thermoelectric properties of metal-Sb materials that can be transformed into layered materials through the insertion of cations. In this study, we synthesized FeSb and MnSb, which are used as base materials for advanced thermoelectric materials. They were confirmed as single-phase materials by analyzing X-ray diffraction patterns. Based on electrical conductivity, the Seebeck coefficient, and thermal conductivity of both materials characterized as a function of temperature, the zT values of MnSb and FeSb were calculated to be 0.00119 and 0.00026, respectively. These properties provide a fundamental data for developing layered Zintl-phase materials with alkali/alkaline earth metal insertions.

1. Introduction
2. Experimental
    2.1.Fabrication of Fe-Sb and Mn-Sb Materials
    2.2. Characterization
3. Results and Discussion
4. Conclusion
Conflict of Interest Declaration
Author Information and Contribution
Acknowledgments
References

• Kyung Tae Kim(Department of 3D Printing Materials, Korea Institute of Materials Science, Changwon, Gyeongnam 51508, Republic of Korea) Corresponding author
• Kwi-Il Park(Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea)
• Linh Ba Vu(Department of 3D Printing Materials, Korea Institute of Materials Science, Changwon, Gyeongnam 51508, Republic of Korea, Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea)
• Jinhee Bae(Department of 3D Printing Materials, Korea Institute of Materials Science, Changwon, Gyeongnam 51508, Republic of Korea)
• Sooho Jung(Department of 3D Printing Materials, Korea Institute of Materials Science, Changwon, Gyeongnam 51508, Republic of Korea)
• Seungki Jo(Department of 3D Printing Materials, Korea Institute of Materials Science, Changwon, Gyeongnam 51508, Republic of Korea)
• Jong Min Park(Department of 3D Printing Materials, Korea Institute of Materials Science, Changwon, Gyeongnam 51508, Republic of Korea, Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea)