Water-Mediated Reversible Crystalline Phase Transformation Enables Color Switching and Circularly Polarized Luminescence Handedness Inversion.
Stimuli-responsive circularly polarized luminescence (CPL) modulation is highly sought for adaptive chiroptical systems, yet achieving reversible CPL handedness inversion in crystalline solids remains challenging. Here, we report organic ionic crystals composed of luminescent cations and chiral anions that undergo crys...