具有近红外聚合诱导辐射的合碳烯主链聚合物
Filip Aniés1, Iain Hamilton2, Catherine S P De Castro2
1Department of Chemistry, Centre for Processable Electronics, Molecular Sciences Research Hub, Imperial College London, 80 Wood Lane, London, W12 0BZ, U.K.
Journal of the American Chemical Society
|May 6, 2024
概括
研究人员使用ortho-carborane开发了新的近红外 (NIR) 发射有机半导体. 这种突破性的材料显示出高固态排放,为先进的NIR应用铺平了道路.
科学领域:
- 材料科学
- 有机电子
- 光物理学
背景情况:
- 聚合诱导排放 (AIE) 材料对于固态应用至关重要,因为它们的排放效率很高.
- 为近红外 (NIR) 应用开发具有700nm以上辐射的AIE材料仍然是一个重大挑战.
- 有机半导体 (OSC) 越来越多地被用于先进的电子和光子设备.
研究的目的:
- 调查奥托碳素作为AIE活性成分的潜力,用于设计NIR发射的OSC.
- 合成和表征结合的聚合物,其中包括Orto-Carborane,用于NIR发射.
- 评估这些材料在有机电子设备中的性能.
主要方法:
- 在合聚合物的骨干中加入正氧化碳异构体 (正氧化,正氧化,甲基).
- 光发光谱测定固态光发光量子产量 (PLQY) 和辐射最大值.
- 非化聚合物发光二极管 (PLED) 的制造和特征.
主要成果:
- 聚合物与正方体碳酸的固态PLQY高达13.4%,光发光度最高在734nm.
- 碳酸的和甲异构体导致聚合引起的火,突出显示了异构体结构的重要性.
- 使用正碳聚合物的非化PLED实现了近乎纯净的NIR发射 (86%>700nm),电度最高在761nm.
结论:
- 正氧化碳是创建高效的NIR发射AIE材料的一个有前途的组成部分.
- 碳的特定异构结构显著影响了AIE的特性和排放特性.
- 开发的NIR发射OSC显示了实际电子应用的潜力,特别是在PLED中.
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