DOI: 10.1039/d6ta03873e ISSN: 2050-7488
High-performance Bi-based 14-1-11 thermoelectrics via defect-mediated carrier tuning in Ca 14 AlBi 11−
Saba Sepahban Shahgoli, Pouriya Naziri, Duncan Zavanelli, G. Jeffrey Snyder, Umut AydemirIsovalent Sb substitution in valence-balanced Ca 14 AlBi 11− x Sb x modulates native acceptor-type defects, reduces hole concentration, and boosts p-type thermoelectric performance to zT ≈ 1.35 at 973 K for x = 3.