Tung Nguyen-Dang, Ally Si Tong Bao, Chokchai Kaiyasuan, Kunyu Li, Sangmin Chae, Ahra Yi, Syed Joy, Kelsey Harrison, Jae Young Kim, Francesca Pallini, Luca Beverina, Kenneth R Graham, Colin Nuckolls, Thuc-Quyen Nguyen
We report a new method to make air-stable n-type organic mixed ionic-electronic conductor (OMIEC) films for organic electrochemical transistors (OECTs) using a solution-processable small molecule helical perylene diimide trimer, hPDI[3]-C11 . Alkyl side chains were attached to the conjugated core for processability and film making, which were then cleaved via thermal annealing. After the sidechains were removed, the hPDI[3] film becomes less hydrophobic, more ordered, and has a deeper lowest unoccupied molecular orbital (LUMO)...
March 24, 2024: Advanced Materials