Ordered sphalerite derivative Cu 5 Sn 2 S 7 : a degenerate semiconductor with high carrier mobility in the Cu–Sn–S diagram

Abstract

International audienceThe discovery of the monoclinic Cu 5 Sn 2 S 7 phase adds a high mobility member to the Cu–Sn–S diagram and demonstrates how the crystal structure can be advantageously manipulated to design novel compositions for energy-oriented applications