发光体
发光
共聚物
材料科学
圆极化
圆二色性
自组装
手性(物理)
高分子化学
光电子学
光学
纳米技术
结晶学
复合材料
聚合物
化学
手征对称性
物理
Nambu–Jona Lasinio模型
量子力学
夸克
微带线
作者
Sheng‐Wei Shao,Puhup Puneet,Ming‐Chia Li,Tomoyuki Ikai,Eiji Yashima,Rong‐Ming Ho
标识
DOI:10.1021/acsmacrolett.4c00188
摘要
This work aims to examine the effect of self-assembly on the chiroptic responses of the achiral block copolymer (BCP) polystyrene-b-poly(ethylene oxide) (PS-b-PEO) associated with chiral luminophores, (R)- or (S)-1,1′-bi-2-naphthol ((R)- or (S)-BINOL), through hydrogen bonding. With the formation of a well-ordered helical phase (H*), significantly induced circular dichroism (ICD) signals for the PEO block in the mixture can be found. Most interestingly, a remarkable amplification with an extremely large dissymmetry factor of luminescence (glum) from 10–3 to 0.3 (i.e., induced circular polarized luminescence (iCPL) behavior) for the chiral BINOLs in the mixture can be achieved by the formation of the helical phase (H*) via mesochiral self-assembly. As a result, by taking advantage of BCP for mesochiral self-assembly, it is feasible to create a nanostructured monolith with substantial optical activities, offering promising applications in the design of chiroptic devices.
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