[23a-C105-1~11] 12.3 Functional Materials and Novel Devices

[23a-C105-3] Enhancement of solid-state TTA-UC by layering dye molecule layers on plasmonic nanointerfaces

〇Kodai Matsumoto¹, Udai Danyoshi¹, Junpei Kondo¹, Takeo Nakano^3,4, Nobuhiro Yanai^1,2,4, Shigenori Fujikawa^1,2,3,4, Nobuo Kimizuka^1,2,4 (1.Grad. Sch. of Eng., Kyushu Univ., 2.CMS, Kyushu Univ., 3.WPI-I2CNER, Kyushu Univ., 4.K-NETs, Kyushu Univ.)

Keywords:Large-area plasmonic nano-interface, Solid-state TTA-UC, Nano-Film Structure Control

Triplet-Triplet annihilation upconversion (TTA-UC) is a technology for converting low-energy light into high-energy light, and research on its solid-state device and its performance improvement has attracted much attention. The use of localized surface plasmon resonance (LSPR) to improve the light absorption efficiency of triplet sensitizers has been reported. However, this method is not suitable for effectively introducing dye molecules near the nanoparticles. In this study, we aim to improve the TTA-UC performance of solid-state TTA-UC systems by controlling the spatial organization of TTA-dye molecules near the nanoparticles. This work will allow us to clarify the correlation between the arrangement of the dye molecules and TTA-UC behavior.