Presenter:
Title:
"One UV photon or two visible photons, that is the question"
Abstract:
Numerous challenging photoreactions require UV light and cannot be driven by one visible photon for thermodynamic reasons. With the aim in mind to replace inefficient UV light sources, we are working on different strategies to pool the energy of two visible photons for achieving similar photochemical reactivities as obtained upon direct (one-photon) UV excitation. Several two-photon mechanisms and photocatalytic applications will be discussed with a focus on recent results related to two key mechanisms: (i) consecutive two-photon absorption with intermediate triplet states and (ii) upconversion via sensitized triplet-triplet annihilation. All projects are characterized by a synergistic interplay of molecular design, time-resolved optical spectroscopy and lab-scale irradiation experiments.
Date:
July 31st(Fri) 2023, 4pm~ (JST)
Place/Style: Onsite/Online hybrid
(Onsite) Come to West 4-314, Ito Campus, Kyushu Univ. at the time.
(Online) YouTubeLive link will be sent after filling out this form. The YouTube Link will be active for a week and you can enjoy the talk whenever you like.
Fee: Free!
Contact:
Kiyoshi MIYATA, Kyushu U.
kmiyata@chem.kyushu-univ.jp
Nobuhiro YANAI, Kyushu U.
yanai@mail.cstm.kyushu-u.ac.jp
