Robust Angular Anisotropy of Circularly Polarized Luminescence from a Single Twisted-Bipolar Polymeric Microsphere

Abstract

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Polymer-Dispersed Cholesteric Liquid Crystal under Homeotropic Anchoring: Electrically Induced Structures with λ1/2-Disclination

“…Dispersions of cholesteric liquid crystal (CLC) droplets are used to develop various smart materials and find practical use as controllable reflective colour coatings [ 1 , 2 , 3 , 4 , 5 ], programmable lasers [ 6 , 7 , 8 , 9 ], bio- and chemosensors [ 10 , 11 , 12 , 13 , 14 , 15 ], etc. The application multiplicity of CLC dispersions is due to the vast diversity of the formed orientational structures, which are determined by the boundary conditions, the droplet’s shape, the CLC elasticity constants, the ratio of the droplet’s size d and the cholesteric intrinsic helix pitch characterized by the relative chiral parameter [ 16 , 17 , 18 , 19 , 20 , 21 ].…”

Photoprogrammable Circularly Polarized Phosphorescence Switching of Chiral Helical Polyacetylene Thin Films

“…Amongst the many possibilities in molecular design for RTP materials production, systematical investigation of molecular functions and material properties anchoring on chirality manipulate would be a scientifically frontier research [12][13][14][15] . To date, exponential attention have been paid to the design and fabrication of organic optoelectronic materials with circularly polarized luminescence (CPL) functionality [16][17][18][19][20][21][22] , and several successful examples of circularly polarized room-temperature phosphorescent materials were designed by confining the motions of chiral aromatic molecules in the rigid crystals or polymers [23][24][25][26][27] . However, circularly polarized RTP materials with responsiveness to internal factors or external environment stimuli are still rarely reported 28 , especially those with favorable practicability.…”

Transpositional Circularly Polarized Luminescence from Transient Charge‐Transfer Coassembly

“…[ 1,2 ] Compared to the kinetic control by environmental factors, [ 3–5 ] thermodynamic control of multiple‐constituent coassembly comprising of two or more species is emerging as a promising protocol, [ 6–12 ] whereby chiroptical properties as well as other features could be flexibly manipulated. [ 13–15 ] Intermolecular noncovalent interactions including π–π stacking, complementary hydrogen bonds, charge‐transfer, electrostatic attraction, and halogen bonding have been utilized to incorporate constituents into synergistic coassemblies with diversified properties and applications. [ 16–18 ] Complexation and coassembly between components suffers from considerable pathway complexity, which increases with the number of building units.…”