High-Efficiency Circularly Polarized Luminescence from Twisted Tetraarylethylene-Bridged Polybissilsesquioxane Nanotubes,ACS Applied Polymer Materials

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High-Efficiency Circularly Polarized Luminescence from Twisted Tetraarylethylene-Bridged Polybissilsesquioxane Nanotubes
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2022-08-17 , DOI: 10.1021/acsapm.2c01112
Fengmin Han ₁ , Fengyun Shi ₁ , Hongkun Li _{1,

2} , Yonggang Yang ₁ , Yongfang Li ₁

Affiliation

Circularly polarized luminescence (CPL)-active materials have attracted increasing attention due to their applications in chiral sensing and optoelectronics. However, it is still a challenging task to fabricate CPL materials with large luminescence dissymmetry factors and strong emission intensities in the solid state. In this work, two single-handed twisted tetraarylethylene (TAE)-bridged polybissilsesquioxane nanotubes have been facilely constructed through a supramolecular templating polymerization of TAE-bridged bis(triethoxysilane) with aggregation-induced emission properties, using self-assemblies of a pair of chiral amino acid-based cationic amphiphiles as the supramolecular templates. It is found that the chirality has been transferred from the self-assemblies to the polybissilsesquioxane nanotubes. The resulting hybrid silicas show high thermal stabilities and bright CPL with the fluorescence quantum yield up to 62.8%.

中文翻译：

扭曲四芳基乙烯桥连聚双倍半硅氧烷纳米管的高效圆偏振发光

圆偏振发光（CPL）活性材料因其在手性传感和光电子学中的应用而受到越来越多的关注。然而，制备具有大发光不对称因子和固态发射强度强的CPL材料仍然是一项具有挑战性的任务。在这项工作中，通过具有聚集诱导发射特性的 TAE 桥接双（三乙氧基硅烷）的超分子模板聚合，使用一对手性的自组装，轻松构建了两个单手扭曲四芳基乙烯 (TAE) 桥接的聚双倍半硅氧烷纳米管。基于氨基酸的阳离子两亲物作为超分子模板。发现手性已经从自组装体转移到聚双倍半硅氧烷纳米管上。

更新日期：2022-08-17

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