Popular search engines like google scholar and web of science only have search fields like "keywords" and "topic" .. i am looking for something like a search engine that filters papers by the "chemicals and materials used in the study". If there is no such thing, can someone suggest the workflow they use when they want to filter and find in a particular topic based on the materials used in the paper. For example, to find all papers that fabricate solar cells with the specific material "P3HT" used in it.
Any workflow suggestions would be a big help. Thanks!