A Single‐Enantiomer Emitter Enabled Superstructural Helix Inversion for Upconverting and Downshifting Luminescence with Bidirectional Circular Polarization
Chao Ren,
Wenjing Sun,
Tonghan Zhao
et al.
Abstract:The helical twisting tendency of liquid crystals (LCs) is generally governed by the inherent configuration of the chiral emitter. Here, we introduce the multistage inversion of supramolecular chirality as well as circularly polarized luminescence (CPL) by manipulating the ratio of single enantiomeric emitters (R‐PCP) to LC monomers (5CB). Increasing the content of R‐PCP from 1 wt % to 3 wt % inverted the helix of LCs from left‐handed to right‐handed, accompanying a CPL sign changed from positive to negative. T… Show more
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