Kitagawa Yuichi, Suzue Fumiya, Nakanishi Takayuki, Fushimi Koji, Seki Tomohiro, Ito Hajime, Hasegawa Yasuchika
Faculty of Engineering, Hokkaido University, Kita-13, Nishi-8, Sapporo, Hokkaido, 060-8628, Japan.
Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, Hokkaido, 001-0021, Japan.
Commun Chem. 2020 Jan 3;3(1):3. doi: 10.1038/s42004-019-0251-z.
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 T 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.
设计能有效利用低能量光的光敏剂对于开发光功能材料至关重要。在此，我们描述了一种用于有效利用低能量光的合理光敏剂设计。所开发的光敏剂是一种基于刚性多芳族骨架的堆叠纳米碳，它能实现从低能量T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)）和堆叠的并五苯光敏剂组成的Eu(III)配合物。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出五倍以上。
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