# What are the databases of semiconductor properties?

Is there any database listing the experimentally-determined properties of semiconductor materials - things like Band Gap and Electron Mobility. These are easily found for common materials like Germanium or Gallium Arsenide. But what databases have systematic lists properties for materials which are currently being researched (preferably by type, such as $$\ce{ABX2}$$).

These might prove very useful for computational studies (particularly Machine Learning approaches), as well as excellent references for characterization of synthesized materials.

• It would be good for someone to ping Matt Horton since materials project serves some of these purposes. I will avoid giving an answer until he can or its been a while, mainly since he can speak about it much better. – Tristan Maxson May 16 at 16:23
• @TristanMaxson Its been quite a while and no one seems to have reached Matt (I for one have no idea how to). You could consider doing so your self or write an answer yourself? – Devashish Jun 6 at 17:15