Synthesis of TiO_2-polyaniline core-shell nanofibers and their unique UV photoresponse based on different photoconductive mechanisms in oxygen and non-oxygen environments

摘要

The TiO_2-polyaniline (PANI) core-shell nanofibers with unique ultraviolet (UV) photoresponse were designed and fabricated. When the core-shell nanofibers were tested in an oxygen (O_2) and a non-oxygen environment under UV illumination, respectively, a decrease and an increase in photo-conduction were observed, which suggested different photoconductive mechanisms of the core-shell materials in different environments.