High thermoelectric performance in the new cubic semiconductor AgSnSbSe3 by high-entropy engineering

• Main Authors: Luo, Yubo, Hao, Shiqiang, Cai, Songting, Slade, Tyler J., Luo, Zhong Zhen, Dravid, Vinayak P., Wolverton, Chris, Yan, Qingyu, Kanatzidis, Mercouri G.
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials::Energy materials; SnSe; AgSbSe2
• Online Access: https://hdl.handle.net/10356/144638
• Institution: Nanyang Technological University

We investigate the structural and physical properties of the AgSnmSbSem+2 system with m=1-20 (i.e. SnSe matrix and ~5-50 % AgSbSe2) from length scales ranging from atomic, nano and macro. We find the 50:50 composition, with m=1 (i.e. AgSnSbSe3), forms a stable cation disordered cubic rock-salt p-typ...