Glassy photonic inks encapsulated in core–shell microcapsules for local electric field sensors

Photonic inks encapsulated in eccentric core-shell microcapsules form glassy photonic structures under an electric field by dielectrophoretic assembly. The property of the photonic inks exhibiting various photonic colors depending on the strength of local electric field has been utilized for measuring the electric field gradients by reading hue distances. (C) 2015 Elsevier B.V. All rights reserved.