Circularly polarized luminescence with high dissymmetry factors for achiral organic molecules in solutions

Ming-Jun Ji, Wen-Long Zhao, Meng Li () and Chuan-Feng Chen ()
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Ming-Jun Ji: Chinese Academy of Sciences
Wen-Long Zhao: Chinese Academy of Sciences
Meng Li: Chinese Academy of Sciences
Chuan-Feng Chen: Chinese Academy of Sciences

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract Circularly polarized luminescence (CPL) in solution offers several advantages. However, it remains challenging for organic molecules to achieve circularly polarized luminescence with high dissymmetry factor (glum) in solution. Herein, a general strategy is developed by placing chiral nematic liquid crystals (N*-LCs) behind the solution of achiral organic molecules. The selective reflection-transmission mechanism of solution-N*-LC composite system enables the generation of full-color and white circularly polarized light with |glum| even reaching 2.0. This strategy demonstrates versatility, being applicable to both aqueous and organic solutions, and effectively achieving the circularly polarized luminescence of multiple molecules with high glum values. Additionally, CPL switching and logic gate applications are successfully realized by leveraging the selective reflection-transmission mechanism of N*-LCs and the reversible acid-base responsiveness of the solution systems. This work provides a general and robust strategy for achiral organic molecules to achieve circularly polarized luminescence with high |glum| values in solutions.

Date: 2025
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DOI: 10.1038/s41467-025-58355-8

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