Facile Fabrication of Photochromic Dye–Conducting Polymer Core–Shell Nanomaterials and Their Photoluminescence

Photochromic dye (pyrene)–conducting polymer (polypyrrole) core–shell nanomaterials were fabricated using microemulsion micelles as nanoreactors. The adsorption state of pyrene was tunable over a wide range with a small pyrene loading because of the phase separation and the packing constraints of the pyrene crystal. This methodology provides a facile way to control the emission of organic dyes, and also presents a new concept of nanohybrids for electronic devices.