Circularly polarized luminescence from oriented polymer films doped with a tetraphenylethylene-based conjugated oligomer

作者：Zhang, Wan; Ni, Baining; Li, Hongkun^*; Yang, Yonggang^*; Li, Yongfang; Tang, Ben Zhong

来源：Materials Chemistry Frontiers, 2021, 5(14): 5471-5477.

DOI：10.1039/d1qm00482d

• AGGREGATION-INDUCED EMISSION
• CHIRAL PROBES
• CPL
• COMPLEXES
• MOLECULES
• COLOR

Circularly polarized luminescence (CPL) materials have aroused increasing interest due to their wide potential applications. However, achieving CPL-active materials with both a large dissymmetry factor (g(lum)) and high quantum yield (phi(F)) in the solid state remains a challenging task. Here, a series of oriented polymer films with efficient CPL have been fabricated through photopolymerization of cholesteric liquid-crystalline mixtures doped with a tetraphenylethylene-based conjugated oligomer. The resulting films emit intense yellow-orange CPL with absolute g(lum) values up to 0.77 and phi(F) up to 60.4%. This work provides a strategy for constructing CPL thin-film materials with large g(lum) and high fluorescence efficiency.

• 单位
  苏州大学