[3PS-234]
Reversible and Sensitive Acid Sensors with 2D Nanostructured Fluorescent Films
발표자장준화 (전북대학교)
연구책임자정광운 (전북대학교)
Abstract
To fabricate organic fluorescent sensors that respond to acid vapor, a cyanostilbene-based reactive monomer with a pyridine moiety (PCRM) is newly designed and synthesized. The synthesized PCRM shows aggregation-induced emission (AIE) and reversibly responds to acid/base. Furthermore, PCRMs can act as H-bonded acceptors. As a result, the PCRM-8OB complex is formed by 1:1 hydrogen bonding. From the optimized mixture, two-dimensional (2D) nanostructure films are fabricated through subsequent processes such as self-assembly, polymerization, and etching. Interestingly, it was identified that 2D nanostructure sensing films have different sensitivities to acid vapor depending on the molecular direction. We demonstrate a new optical sensor that can appear the risk level according to the concentration of acid vapor in the air. This work was supported by BK21 FOUR Program and Basic Research Laboratory Program (RS-2023-00207836).