Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada.
Chem Commun (Camb). 2021 Oct 14;57(82):10675-10688. doi: 10.1039/d1cc04593h.
Photosensitizer molecules play a crucial role in materials and life sciences. Efforts to improve their performance and reduce the associated costs are therefore vital for advancing environmentally friendly light-driven technologies. In this Feature Article, we describe the use of photosensitizers that make use of thermally activated delayed fluorescence (TADF), their benefits compared to conventional fluorescent and phosphorescent sensitizers, and the efforts of our group and others to develop emitters with application-tailored properties. The key feature is the diversity of accessible excited state pathways, which may be tuned by molecular and supramolecular approaches to suit a particular problem. This unique property has allowed TADF emitters to become competitive for applications including TADF-sensitized fluorescence in light emitting diodes and chemical sensing, organic long persistent luminescence, photodynamic therapy, and non-coherent photon upconversion.
光敏剂分子在材料和生命科学中起着至关重要的作用。因此，努力提高它们的性能并降低相关成本对于推进环保的光驱动技术至关重要。在这篇专题文章中，我们描述了热激活延迟荧光（TADF）光敏剂的应用，它们与传统荧光和磷光敏化剂相比的优势，以及我们小组和其他小组为开发具有特定应用性质的发射器所做的努力。关键特征是可访问的激发态途径的多样性，这些途径可以通过分子和超分子方法进行调整，以适应特定的问题。这种独特的性质使得 TADF 发射器在包括发光二极管中的 TADF 敏化荧光、化学传感、有机长余辉、光动力疗法和非相干光子上转换在内的应用中具有竞争力。
