Tuning circularly polarized luminescence of an AIE-active pyrene luminogen from fluidic solution to solid thin film

• DOI: 10.1016/j.tetlet.2016.02.015
• Publication Date: 2016-02-03T18:12:19Z
• Authors: Junfeng Li; Chenglong Yang; Chao Huang; Yi Wan; Wen-Yong Lai
• Keywords: Excimer

Abstract The photoluminescence (PL) and circularly polarized luminescence (CPL) of ((R)-1-phenyl-N-(pyren-1-ylmethyl)ethanamine) P-R were successfully modulated via fine-tuning and precise control of excited conformation of dimer/excimer by external stimuli. The resulting aggregation-induced emission (AIE)-active material (P-R) exhibited CPL with a low dissymmetry factor (∼10−4) in monomeric form, while demonstrating a prominent CPL signal with a higher dissymmetry factor (∼10−3) in thin solid films even without annealing processes.