Temperature Dependence of Photoluminescence Lifetime and Quantum Efficiency in Neat fac-Ir(ppy)<sub>3</sub> Thin Films
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- Kobayashi Takashi
- 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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- Matsusue Noriyuki
- Department of Physics and Electronics, Osaka Prefecture University
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- Naito Hiroyoshi
- Department of Physics and Electronics, Osaka Prefecture University
書誌事項
- タイトル別名
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- Temperature Dependence of Photoluminescence Lifetime and Quantum Efficiency in Neat fac-Ir(ppy)3 Thin Films
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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 3.1×109 s−1 and is located at 0.12 eV above the lowest substate of the 3MLCT state.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 44 (4A), 1966-1969, 2005
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390001206266706048
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- NII論文ID
- 210000057633
- 10015471012
- 130004533575
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL書誌ID
- 7302795
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可