报 告 人 : 吴宏（重庆大学物理学院）
时 间 :2020年11月12号（星期四）下午 14点 00 分
地 点 :物理学院 LE705
邀 请 人 :软凝聚态物理及智能材料研究重庆市重点实验室
报告摘要：
Recently, the layer-structured compounds, such as SnSe and In4Se3, exhibit excellent thermoelectric (TE) properties due to the ultralow lattice thermal conductivity (κ_L) from strong lattice anharmonicity. It is therefore significant to unceasingly explore new materials with intrinsically low κ_L and high zT values , and identify the origin of the intrinsically low κ_L from the perspective of the crystal structure, chemical bonding and lattice dynamics. In this report, the layered SnS and SnSb2Te4 compounds with intrinsically low κ_L are taken as research objects. In conjunction with first-principles calculations, the mechanisms of the intrinsically low κ_L are elucidated. Furthermore, the thermoelectric performance of these materials is optimized by electronic band and phonon engineering.
报告人介绍：
重庆大学物理学院在读博士生，师从卢旭和周小元教授，主要研究兴趣为热电材料及相关理论计算。近年来以第一作者在《Adv. Energy Mater.》、《Nano Energy》、《Mater. Today Phys.》等期刊发表SCI论文4篇，参与撰写英文书籍章节并在Springer 上出版。
