In this sense, the chemical versatility of PSs gives a design handle that is not available in most other material classes. To see how, we recall our conclusion (Sec. 3.3, Sec. 4.1, Sec. 4.2) that some semiconductors with high α and high μ are likely to be found among PSs with different P/S ratios and oxidation states. This implies that the phosphorus states can be "moved around" between the valence and the conduction band by changing the material, while still keeping a high α and high μ. (mp-1216056), Ca4P2S and Zr2P3S (mp-1215423) are represented as a ball and stick model and visualized with VESTA Phosphorus is always displayed in purple, sulfur in yellow and the respective metal in the third colour. This figure is intended to complement Fig.