Electrically Tunable Polypyrrole Inverse Opals with Switchable Stopband, Conductivity, and Wettability

An electrically tunable Ppy inverse opal was fabricated by electropolymerization. The stopband, conductivity, and wettablity of the inverse opal could be reversibly modulated by electroredox. These properties endowed the material with promising applications in multifunctional optoelectronic devices.