Exploring the dark: detecting long-lived Nile Red 3ILCT states in Ru(ii ) polypyridyl photosensitisers
| Autor: | Claire Condon, Graeme W. Watson, Sylvia M. Draper, Jianzhang Zhao, Lukas J. Hallen, Xiaoneng Cui, Robert Conway-Kenny, Brendan Twamley |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
010405 organic chemistry Singlet oxygen Nile red Astrophysics::Cosmology and Extragalactic Astrophysics General Chemistry Chromophore 010402 general chemistry Photochemistry 01 natural sciences Lower energy 0104 chemical sciences 3. Good health chemistry.chemical_compound chemistry Excited state Materials Chemistry |
| Zdroj: | Journal of Materials Chemistry C. 9:14573-14577 |
| ISSN: | 2050-7534 2050-7526 |
| DOI: | 10.1039/d1tc02830h |
| Popis: | Two novel Ru(II) photosensitisers sporting ethynyl-Nile Red chromophores are shown to absorb strongly in the visible region, and to have two distinct but weakly emissive states (1ILCT* and 3MLCT*). In addition a long-lived, lower energy ‘dark’ (non-emissive) triplet excited state is identified (3ILCT*) and successfully exploited for singlet oxygen generation. |
| Databáze: | OpenAIRE |
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