High sensitive pyridine chemiresistive sensors based on azacyclobutane modified perylene bisimide derivatives

• Published in: Dyes and pigments Vol. 185; p. 108902
• Main Authors: Liu, Quan, Zhao, Caibin, Shao, Xianzhao, Wang, Wei, Ji, Xiaohui
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.02.2021
• Subjects: Chemiresistive sensors; Perylene bisimide derivatives; Pyridine detection; Pyridine detection; Chemiresistive sensors; Perylene bisimide derivatives
• ISSN: 0143-7208; 1873-3743
• DOI: 10.1016/j.dyepig.2020.108902

A novel bay brominated perylene bisimide derivative with azacyclobutane modified (PBI–1N) was designed and synthesized. The derivative had good solubility in organic solvents and excellent self-assembly properties. The networked structure of PBI-1N was transferred to the surface of the device to prepare the chemiresistive sensor, and its sensing performance was studied. There is a higher sensitivity for PBI-1N-based sensor with experimental detection limit of pyridine reaching 375 ppb. Moreover, the pyridine and its derivatives can be distinguished by introducing halogen bond interaction. This provides a useful reference for the molecular structure design of high performance organic semiconductors in the future. [Display omitted] •A novel PBI derivative with D-A structure was designed and synthesized.•The specific weak interaction of halogen bond to was used to enhance the selectivity of the sensor with analyte.•The PBI derivative was assembled into a thin film with a spatial nanogrid structure to enhance the interaction with analyte.•The sensor has higher sensitivity for pyridine with experimental detection limit lower than 375 ppb.