Crystal Structure and Thermoelectric Transport Properties of As-Doped Layered Pnictogen Oxyselenides NdOFSbAsSe.

We report the synthesis and thermoelectric transport properties of As-doped layered pnictogen oxyselenides NdOFSbAsSe ( ≤ 0.6), which are predicted to show high-performance thermoelectric properties based on first-principles calculation. The crystal structure of these compounds belongs to the tetragonal 4/ space group (No.