TPA-QCN for AI artificial intelligence, TADF, CAS 2131049-03-9, second-order optical nonlinearity July 3, 2026July 3, 2026 by 1-Material 1M COA TPA-QCN YY30072P with NMR https://tech.yahoo.com/science/articles/material-tackles-one-biggest-barriers-140700241.html