Photosensitizer design to allow effective use of low-energy light is important for developing photofunctional materials. Herein, we describe a rational photosensitizer design for effective use of low-energy light. The developed photosensitizer is a stacked nanocarbon based on a rigid polyaromatic framework, which allows efficient energy transfer from the low-energy T₁ level to the energy acceptor. We prepared an Eu(III) complex consisting of a luminescent center (Eu(III)) and stacked-coronene photosensitizer. The brightness of photosensitized Eu(III) excited using low-energy light (450 nm) is more than five times higher than the maximum brightness of previously reported Eu(III) complexes.

允许有效使用低能量光的光敏剂设计对于开发光功能材料很重要。在此，我们描述了一种合理的光敏剂设计，以有效利用低能量光。所开发的光敏剂是一种基于刚性聚芳烃骨架的堆叠纳米碳，可实现从低能 T ₁能级到能量受体的高效能量转移。我们制备了一种由发光中心 (Eu(III)) 和堆叠的晕苯光敏剂组成的 Eu(III) 络合物。使用低能量光 (450 nm) 激发的光敏 Eu(III) 的亮度比先前报道的 Eu(III) 配合物的最大亮度高五倍多。