Temperature Dependence of Photoluminescence Lifetime and Quantum Efficiency in Neat fac-Ir(ppy)3 Thin Films
スポンサーリンク
概要
- 論文の詳細を見る
Temperature dependences of lifetime and intensity of photoluminescence have been investigated in neat fac-Ir(ppy)3 thin films, which have a nonradiative decay channel due to aggregate quenching. Both temperature dependences can be well understood by a model which consists of three substates of the triplet metal-to-ligand-charge-transfer (3MLCT) state and a nonemissive state. Good agreement between the experimental results and the calculations based on the model suggests that nonradiative decay occurs through a higher lying excited state in fac-Ir(ppy)3 molecules, and that the nonemissive excited state has a decay rate of $3.1\times 10^{9}$ s-1 and is located at 0.12 eV above the lowest substate of the 3MLCT state.
- 2005-04-15
著者
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Matsusue Noriyuki
Department Of Physics And Electronics Osaka Prefecture University
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Ide Noritaka
Department Of Physics And Electronics Osaka Prefecture University
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Naito Hiroyoshi
Department Of Chemistry And Organosilicon Research Laboratory
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KOBAYASHI Takashi
Department of Applied Physics,Faculty of Engineering,Nagoya University
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Ide Noritaka
Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Kobayashi Takashi
Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Matsusue Noriyuki
Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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NAITO Hiroyoshi
Department of Anatomy, Tokyo Dental College
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