Scholarlink

<p>Circularly polarized light-emitting diodes hold great promise for advanced photonic applications such as three-dimensional displays, quantum information processing, and optical spintronics. Carbon dots, owing to their metal-free nature, high stability, and structural versatility, have emerged as attractive alternatives. However, their intrinsic chirality is typically weak due to a lack of precise control over structure and molecular arrangement, and their application in electroluminescent devices has remained unrealized. Here, we report a class of supramolecular assemblies consisting of fluorinated π-conjugated carbon dots. Upon interaction with <i>M</i>/<i>P</i>-[N] hexahelicene as chiral inducers, a directed supramolecular self-assembly is formed via strong electrostatic and hydrogen bonding interactions, yielding a high absorption dissymmetry factor of up to 0.107. More significantly, we demonstrate the devices based on these supramolecular assemblies, achieving a maximum luminance of 9655 cd m<sup>−2</sup> and electroluminescent dissymmetry factor value of 0.035. These results mark a significant step toward metal-free chiral optoelectronics and highlight the potential of carbon nanomaterials in next-generation display technologies.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Chirality induced by supramolecular self-assembly of fluorinated π-conjugated carbon dots for bright circularly polarized electroluminescent light-emitting diodes

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月22日

查看全文
  • Yuxin Shi,
  • Qian Teng,
  • Qinghua Tan,
  • Chenhao Li,
  • Jinyang Li,
  • Xianzhi Song,
  • Haoran Jia,
  • Louzhen Fan,
  • Fanglong Yuan

摘要

Circularly polarized light-emitting diodes hold great promise for advanced photonic applications such as three-dimensional displays, quantum information processing, and optical spintronics. Carbon dots, owing to their metal-free nature, high stability, and structural versatility, have emerged as attractive alternatives. However, their intrinsic chirality is typically weak due to a lack of precise control over structure and molecular arrangement, and their application in electroluminescent devices has remained unrealized. Here, we report a class of supramolecular assemblies consisting of fluorinated π-conjugated carbon dots. Upon interaction with M/P-[N] hexahelicene as chiral inducers, a directed supramolecular self-assembly is formed via strong electrostatic and hydrogen bonding interactions, yielding a high absorption dissymmetry factor of up to 0.107. More significantly, we demonstrate the devices based on these supramolecular assemblies, achieving a maximum luminance of 9655 cd m−2 and electroluminescent dissymmetry factor value of 0.035. These results mark a significant step toward metal-free chiral optoelectronics and highlight the potential of carbon nanomaterials in next-generation display technologies.