Hollow Polyaniline Microspheres with Conductive and Fluorescent Function

Summary: Salicylic acid‐doped hollow polyaniline and rhodamine B composite spheres (1.9–3.3 µm in average diameter) with a high conductivity (≈10−1 S · cm−1) and a strong fluorescence were synthesized by a template‐free method. The morphologies, electrical and fluorescent properties of the hollow composite microspheres can be adjusted by changing the content of RhB in the composites opening a simple route to preparing multi‐functionalized micro/nanostructures. SEM and TEM images of PANI‐SA/RhB synthesized under concentration of 1 × 10−3 MRhB. image SEM and TEM images of PANI‐SA/RhB synthesized under concentration of 1 × 10−3 MRhB.