ChemInform Abstract: Synthesis, Structure, Thermoelectric Properties, and Band Gaps of Alkali Metal Containing Type I Clathrates: A₈Ga₈Si₃₈ (A: K, Rb, Cs) and K₈Al₈Si₃₈.

Abstract

A series of M8Ga8Si38 (M: K, Rb, Cs) compounds with type I clathrate structure and K8Al8Si38 are prepared by heating 9:8:38 molar mixtures of the alkali metal, Ga or Al, and Si.