Guilin Sun
Ansys Employee

You will first need to create any single material you want, and then binary, and then ternary.

When the material database does not have the material, you will have to create it by your own with sufficient material properties. https://optics.ansys.com/hc/en-us/articles/360034919133-Tips-for-creating-a-new-semiconductor-material

This is the only solution.