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Hokkaido University Collection of Scholarly and Academic Papers >
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Effective Photosensitization in Excited-State Equilibrium: Brilliant Luminescence of Tb-III Coordination Polymers Through Ancillary Ligand Modifications
| Title: | Effective Photosensitization in Excited-State Equilibrium: Brilliant Luminescence of Tb-III Coordination Polymers Through Ancillary Ligand Modifications |
| Authors: | Kitagawa, Yuichi Browse this author →KAKEN DB | | Moriake, Ryoma Browse this author | | Akama, Tomoko Browse this author →KAKEN DB | | Saito, Koki Browse this author | | Aikawa, Kota Browse this author | | Shoji, Sunao Browse this author | | Fushimi, Koji Browse this author →KAKEN DB | | Kobayashi, Masato Browse this author | | Taketsugu, Tetsuya Browse this author →KAKEN DB | | Hasegawa, Yasuchika Browse this author →KAKEN DB |
| Keywords: | energy transfer | | luminescence | | photosensitizer | | terbium | | triplet state |
| Issue Date: | Oct-2022 |
| Publisher: | Wiley-Blackwell |
| Journal Title: | ChemPlusChem |
| Volume: | 87 |
| Issue: | 10 |
| Start Page: | e202200151 |
| Publisher DOI: | 10.1002/cplu.202200151 |
| Abstract: | Molecular photosensitizers provide efficient light-absorbing abilities for photo-functional materials. Herein, effective photosensitization in excited-state equilibrium is demonstrated using five Tb-III coordination polymers. The coordination polymers are composed of Tb-III ions (emission center), hexafluoroacetylacetonato (photosensitizer ligands), and phosphine oxide-based bridges (ancillary ligands). The two types of ligand combinations induces a rigid coordination structure via intermolecular interactions, resulting in high thermal stability (with decomposition temperatures above 300 degrees C). Excited-triplet-state lifetimes of photosensitizer ligands (tau=120-1320 mu s) are strongly dependent on the structure of the ancillary ligands. The photosensitizer with a long excited-triplet-state lifetime (tau >= 1120 mu s) controls the excited state equilibrium between the photosensitizer and Tb-III, allowing the construction of Tb-III coordination polymer with high Tb-III emission quantum yield (>= 70 %). |
| Rights: | This is the peer reviewed version of the following article: Y. Kitagawa, R. Moriake, T. Akama, K. Saito, K. Aikawa, S. Shoji, K. Fushimi, M. Kobayashi, T. Taketsugu, Y. Hasegawa, ChemPlusChem 2022, 87, e202200151, which has been published in final form at https://doi.org/10.1002/cplu.202200151. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/90156 |
| 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: 北川 裕一
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