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Study of the Triplet and Singlet States of Ir(ppy)_3 by the Excitation Spectra for Photoluminescence
http://hdl.handle.net/10965/00002562
http://hdl.handle.net/10965/0000256211793acd-943c-4e6c-ac75-baa8844567f3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00003201384.pdf (275.9 kB)
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| Item type | [ELS]紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-01-28 | |||||
| タイトル | ||||||
| タイトル | Study of the Triplet and Singlet States of Ir(ppy)_3 by the Excitation Spectra for Photoluminescence | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 雑誌書誌ID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11815191 | |||||
| ページ属性 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | P | |||||
| 著者 |
TSUBOI, Taiju
× TSUBOI, Taiju |
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| 著者所属(英) | ||||||
| 言語 | en | |||||
| 値 | Research Institute of Advanced Technology, Kyoto Sangyo University | |||||
| 記事種別(日) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 研究論文 | |||||
| 記事種別(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Paper | |||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Photoluminescence of phosphorescent molecule tris(2-phenylpyridine) iridium (Ir(ppy)_3) has been studied in the neat film and film of Ir(ppy)_3 doped in CBP. Weak absorption bands at 485, 451 and 406 nm are attributed to the metal-ligand charge transfer triplet state (3MLCT) from the excitation spectra for the green emission. Additional emission band with a peak at 396 nm and a broad sideband at about 423 nm are observed in the neat film. The 396 nm emission is much weaker than the green emission. Its intensity increases with decreasing temperature from 300 K to about 100 K, and becomes constant at 100-10 K. This emission is attributed to the emission from the singlet state 1MLCT which gives rise to absorption band at 386 nm. The conversion of the intersystem crossing from the singlet state to the triplet state is estimated to be 98.7%. From difference of excitation spectra between the films doped and non-doped in CBP, we suggest energy transfer from the n = 1 vibrational state of Ir(ppy)_3 dopant to the n = 0 vibrational state of CBP host. Discussion is given on the vibronic structure observed in the emission and excitation spectra by comparing with the observed Raman spectrum. | |||||
| 書誌情報 |
京都産業大学先端科学技術研究所所報 en : The bulletin of the Research Institute of Advanced Technology Kyoto Sangyo University 巻 4, p. 31-43, 発行日 2005-07 |
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| 表示順 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 4 | |||||
| アクセション番号 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | KJ00003201384 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 1347-3980 | |||||
