1. Fluorescent chemosensor
Visual signal is a fast and intuitive indicator for detecting extrinsic stimuli. CPs usually
display distinguished luminescence and tend to exhibit superior sensory signal amplification to
their fluorescent monomeric counterparts. A large number of chemosensors can be designed and
developed in response to analytes by altering the photoelectronic properties of CPs [63], such as
absorption, emission and excited-state electron transfer [64]. Many CPs are turn-off sensors driven
by the mechanisms of PET, charge transfer or static quenching such as ICT or FRET. In addition
to the intrinsic fluorescence from the conjugated backbones, CPs with AIE features are much
advantageous as solid-state detectors and free from the problem of analyte-induced ACQ effect.
Here, we mainly introduce the sensing performance of AIE luminogen-containing CPs as
fluorescent detectors to different categories of analytes.