Switch of the magnetic field effect on photon upconversion based on sensitized triplet-triplet annihilation.
Magnetic field effects (MFEs) on photon upconversion based on sensitized triplet-triplet annihilation (TTA-UC) are examined in platinum(ii) octaethylporphyrin/9,10-diphenylanthracene (DPA) systems at different DPA concentrations and laser power densities. Positive MFEs on TTA-UC are observed for the first time and are most likely attributable to aggregation of DPA.
Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. yonemura@mail.cstm.kyushu-u.ac.jp.
Hiroaki
H
Yonemura
Department of Materials Physics and Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
Yuji
Y
Naka
Department of Materials Physics and Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
Mitsuhiko
M
Nishino
Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
Hiroshi
H
Sakaguchi
Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. yonemura@mail.cstm.kyushu-u.ac.jp.
Sunao
S
Yamada
D000873:Anthracenes / Q000737:chemistry*; D007834:Lasers; D008027:Light; D060526:Magnetic Fields; D015394:Molecular Structure; D017785:Photons; D011166:Porphyrins / Q000737:chemistry*
D000873:Anthracenes; D011166:Porphyrins; C488938:octaethylporphyrin; C046961:9,10-diphenylanthracene