Highly-sensitive optical organic vapor sensor through polymeric swelling induced variation of fluorescent intensity.

ABSTRACT: Traditional optical organic vapor sensors with solvatochromic shift mechanisms have lower sensitivity due to weak intermolecular interactions. Here, we report a general strategy to prepare a higher sensitivity optical organic vapor sensor through polymeric swelling-induced variation of fluorescent intensity. We combine one-dimensional polymeric structures and aggregation-induced emission (AIE) molecules together to form a polymer/AIE microwires array as a sensor. The prepared sensors based on different commercial polymers can successfully classify and identify various organic vapors. Among them, the poly(vinyl butyral)/AIE microwires array can detect methanol vapor as low as 0.05% of its saturation vapor pressure. According to the theory of like dissolves like, we further fabricate a polym

SUBMITTER: Jiang X 

PROVIDER: S-EPMC6143602 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature