High-performance electron-transporting hybrid rylenes with low threshold voltage†
Abstract
We present here a new family of hybrid rylene arrays (3a–d) by the combination of Stille coupling and C–H transformation via a facile one-pot synthesis. The π-expanded rylene diimides exhibit broadened and intensive optical absorption accompanied by higher electron affinity. The linear alkyl chain substituted NDI-diPDI-NDI (3b) revealed its electron transporting characteristics with good air stability and low threshold voltage.