[21a-E214-1~9] 4.6 Quantum Optics and Nonlinear Optics

▲ [21a-E214-8] Near-infrared-to-visible photon upconversion via triplet-triplet annihilation of a solid-state system fabricated by rapid drying casting

〇ABULIKEMU AIZITIAILI¹, Yusuke Sakagami¹, Claire Heck¹, Kenji Kamada¹, Hikaru Sotome², Hiroshi Miyasaka², Daiki Kuzuhara³, Hiroko Yamada⁴ (1.AIST, 2.Osaka Univ., 3.Iwate Univ., 4.NAIST)

Keywords:Photon Upconversion, Near-Infrared-to-Visible, Triplet-Triplet Annihilation

In this study, we demonstrated for the first time that the π-extended Pd-porphyrin used near-infrared-to-visible (from 785 nm to ~570 nm) photon upconversion in binary solid by applying the rapid drying casting method. The photon upconversion characteristics of the individual microparticles of the solid-state system were evaluated under optical microscopy. The several elementary processes were investigated by time-resolved and/or steady-state spectroscopies.