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Hokkaido University Collection of Scholarly and Academic Papers >
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Thermo- and Mechano-Triggered Luminescence ON/OFF Switching by Supercooled Liquid/Crystal Transition of Platinum(II) Complex Thin Films
| Title: | Thermo- and Mechano-Triggered Luminescence ON/OFF Switching by Supercooled Liquid/Crystal Transition of Platinum(II) Complex Thin Films |
| Authors: | Yoshida, Masaki Browse this author →KAKEN DB | | Saask, Verner Browse this author | | Saito, Daisuke Browse this author | | Yoshimura, Nobutaka Browse this author | | Takayama, Junichi Browse this author | | Hiura, Satoshi Browse this author | | Murayama, Akihiro Browse this author →KAKEN DB | | Pohako-Esko, Kaija Browse this author | | Kobayashi, Atsushi Browse this author →KAKEN DB | | Kato, Masako Browse this author →KAKEN DB |
| Keywords: | cyclometalating ligands | | ionic liquids | | mechanoresponse | | photophysics | | platinum complexes |
| Issue Date: | 4-Apr-2022 |
| Publisher: | Wiley-Blackwell |
| Journal Title: | Advanced optical materials |
| Volume: | 10 |
| Issue: | 7 |
| Start Page: | 2102614 |
| Publisher DOI: | 10.1002/adom.202102614 |
| Abstract: | Trihexyltetradecylphosphonium (P-6,P-6,P-6,P-14) salts of luminescent anionic Pt(II) complexes, (P-6,P-6,P-6,P-14)[PtX2(ppy)] (X = Cl-, Br-; ppy = 2-phenylpyridinate), are synthesized and photofunctional thin films with crystal/liquid bi-stability are fabricated. In particular, the chloride complex provides a thin film exhibiting thermo- and mechano-triggered luminescence ON/OFF switching at ambient temperature, which is based on the control of the supercooled liquid phase and bright luminescent crystalline phase. The photophysical properties of the complexes are investigated and compared with those of the bromide complex and tetra(n-butyl)ammonium salts of the complexes. Furthermore, detailed photophysical analysis reveals a large contribution of the charge-transfer character to the ligand-centered (3)pi pi* excited state, which results in intense phosphorescence in the crystal and high-contrast luminescence ON/OFF by the phase transition of the chloride complex. |
| Rights: | This is the peer reviewed version of the following article: Thermo- and Mechano-Triggered Luminescence ON/OFF Switching by Supercooled Liquid/Crystal Transition of Platinum(II) Complex Thin Films, which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/adom.202102614. 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/2115/88859 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 吉田 将己
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