[14p-512-1~15] 3.7 Laser processing

[14p-512-14] Nanoparticle formation of bismuth telluride by laser ablation in liquid

〇Ryo Kozuru¹, Mitsuhiro Higashihata¹, Daisuke Nakamura¹, Kunihisa Kato², Takeshi Kondo² (1.Kyushu University, 2.LINTEC Corporation)

Keywords:laser ablation

Thermoelectric conversion devices are attracting attention as one of techniques for solving environmental and energy problems.Bismuth telluride (Bi₂Te₃) is attracting attention because it shows high thermoelectric performance in the temperature range from room temperature to 200 ° C, and its nanostructure can be enhanced the thermoelectric performance. In this study, liquid phase laser ablation is introduced to make Bi₂Te₃ nanoparticles. The nanoparticles and spherical microparticles were obtained after laser ablation of Bi₂Te₃ dispersed in ethanol.