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Strong‐Induced CPL Emission Promoted from Achiral Conjugated Polymer‐Containing Emissive Nematic Liquid Crystals (P‐N*‐LCs)
Author(s) -
Chen Yihan,
Xu Zhaoran,
Hu Wenrui,
Li Xiaojing,
Cheng Yixiang,
Quan Yiwu
Publication year - 2021
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202000548
Subject(s) - liquid crystal , materials science , dopant , luminescence , ternary operation , polymer , conjugated system , enantiomer , fluorescence , doping , optoelectronics , nanotechnology , organic chemistry , optics , chemistry , composite material , physics , computer science , programming language
With the rapid development on 3D printing technology, more and more works have been devoted to 3D display. 3D display will really come true by using circularly polarized luminescence (CPL)‐active materials with both high quantum yield and dissymmetry factor ( g em ) in organic light‐emitting diode or liquid crystals (LCs). But so far most of these CPL materials cannot meet the real application requirement because of the low g em values in the range of 10 −5 –10 −2 . In this paper, ternary chiral emissive LCs (P‐N*‐LCs) is designed by doping chiral binaphthyl‐based enantiomers as chiral dopant (Guest 1) and achiral conjugated polymer as induced CPL emitter (Guest 2) into nematic liquid crystal (N‐LCs) Host 5CB. Both Guest 1 and Guest 2 show excellent compatibility with Host 5CB. The obtained ternary P‐N*‐LCs can emit strong‐induced CPL signal with g em up to 1.12 and Ф FL up to 66.1%. This work first develops a new strategy for the smart design of excellent CPL materials from versatile achiral conjugation fluorescence polymers.