The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5, 2023 - Oct 31, 2023
Nagoya Congress Center

5:15 PM - 5:30 PM

[M-2-05] Synthesis of Mg 2Si Nanosheet Bundle Powdersusing CaSi 2 Crystal Powders and Mg-MgCl 2 Sources

○Shalika Parakatawella1, Keigo Sasaki2, Tomoya Koga2, Yosuke Shimura2,3,5, Naohisa Takahashi4, Hirokazu Tatsuoka2 (1. Graduate School of Sci. and Tech., Shizuoka Univ. (Japan), 2. Graduate School of Integrated Sci. & Tech., Department. of Eng., Shizuoka Univ.University (Japan), 3. Res. Inst. of Electronics, Shizuoka Univ. (Japan), 4. YAMAHA MOTOR Corp. Ltd. (Japan), 5. imec (Belgium))

https://doi.org/10.7567/SSDM.2023.M-2-05

Mg2Si nanosheet bundle (NSB) powders were synthesized by thermal annealing of CaSi2 crystal powders using Mg melt, molten MgCl2 and related salt mixture, as well as Mg-MgCl2 vapor phase synthesis. The compositional, structural, and thermoelectrical characteristics of the NSB powders were examined. The results suggest that the Mg2Si NSB powders synthesized using Mg melt and molten MgCl2-CaCl2 mixture yield a more uniform distribution of NSBs with higher electrical conductivity due to suppression of Mg deficiency.