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Spin-orbit coupling dependent energy transfer in luminescent nonanuclear Yb-Gd / Yb-Lu clusters
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| Title: | Spin-orbit coupling dependent energy transfer in luminescent nonanuclear Yb-Gd / Yb-Lu clusters |
| Authors: | Omagari, Shun Browse this author | | Nakanishi, Takayuki Browse this author | | Kitagawa, Yuichi Browse this author | | Seki, Tomohiro Browse this author | | Fushimi, Koji Browse this author | | Ito, Hajime Browse this author | | Meijerink, Andries Browse this author | | Hasegawa, Yasuchika Browse this author |
| Keywords: | Lanthanide complexes | | Lanthanide clusters | | Energy transfer | | Spin-orbit coupling |
| Issue Date: | Sep-2018 |
| Publisher: | Elsevier |
| Journal Title: | Journal of luminescence |
| Volume: | 201 |
| Start Page: | 170 |
| End Page: | 175 |
| Publisher DOI: | 10.1016/j.jlumin.2018.04.049 |
| Abstract: | In luminescent lanthanide (Ln(III)) complexes, the yield and the lifetime of triplet excited state of organic ligands are crucial factors that affect the ligands-to-Ln(III) energy transfer efficiency. Such factors are dependent on spinorbit coupling induced by the Ln(III) ions that mixes different multiplicity states through heavy atom and paramagnetic effects. We investigated the role of these effects on the energy transfer efficiency in synthesized nonanuclear Yb-Gd / Yb-Lu clusters ([Ln(9)(mu-OH)(10)(butyl salicylate)(16)]NO3, Ln(9) = YbnGd9-n or YbnLu9-n, n = 0, 1, 3, 7, and 9). Based on the intensity of the fluorescence and phosphorescence of the ligands, the spin-orbit coupling strength was in the order of Yb(III) > Gd(III) > Lu(III). Various photophysical processes affecting the energy transfer efficiency in YbnGd9-n and YbnLu9-n clusters are discussed from the perspective of spin-orbit coupling and give insight in how to optimize energy transfer efficiencies. |
| Rights: | ©2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/79150 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 長谷川 靖哉
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