Lanthanide Sensitizers for Large Anti-Stokes Shift Near-Infrared-to-Visible Triplet-Triplet Annihilation Photon Upconversion
The upconversion of near-infrared (NIR) to visible (vis) photons is of interest for display technologies and energy conversion. Although triplet-triplet annihilation (TTA) offers a mechanism for upconversion that works efficiently at low incident irradiance flux densities, current strategies for NIR-vis upconversion based on TTA have fundamental limitations. Herein, we report a strategy for NIR-vis TTA based on lanthanide-containing complexes to sensitize the upconversion. We demonstrate a β-diketonate complex of Yb3+ paired with rubrene that emits yellow (λem = 559 nm) under NIR excitation (λexc = 980 nm). This corresponds to an exceptional anti-Stokes shift of just less than 1 eV. Thus, lanthanide complexes could unlock high-performance NIR-vis upconversion, with lanthanide sensitizers overcoming the energy loss, reabsorption, and short triplet lifetime that fundamentally limit porphyrin, nanocrystals, and direct S0-T1 sensitizers.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:11 |
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| Enthalten in: |
The journal of physical chemistry letters - 11(2020), 7 vom: 02. Apr., Seite 2477-2481 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kiseleva, Natalia [VerfasserIn] |
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| Links: |
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| Themen: |
517-51-1 |
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| Anmerkungen: |
Date Completed 09.11.2020 Date Revised 09.11.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1021/acs.jpclett.0c00221 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM307364178 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a The upconversion of near-infrared (NIR) to visible (vis) photons is of interest for display technologies and energy conversion. Although triplet-triplet annihilation (TTA) offers a mechanism for upconversion that works efficiently at low incident irradiance flux densities, current strategies for NIR-vis upconversion based on TTA have fundamental limitations. Herein, we report a strategy for NIR-vis TTA based on lanthanide-containing complexes to sensitize the upconversion. We demonstrate a β-diketonate complex of Yb3+ paired with rubrene that emits yellow (λem = 559 nm) under NIR excitation (λexc = 980 nm). This corresponds to an exceptional anti-Stokes shift of just less than 1 eV. Thus, lanthanide complexes could unlock high-performance NIR-vis upconversion, with lanthanide sensitizers overcoming the energy loss, reabsorption, and short triplet lifetime that fundamentally limit porphyrin, nanocrystals, and direct S0-T1 sensitizers | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Nazari, Pariya |e verfasserin |4 aut | |
| 700 | 1 | |a Dee, Carolin |e verfasserin |4 aut | |
| 700 | 1 | |a Busko, Dmitry |e verfasserin |4 aut | |
| 700 | 1 | |a Richards, Bryce S |e verfasserin |4 aut | |
| 700 | 1 | |a Seitz, Michael |e verfasserin |4 aut | |
| 700 | 1 | |a Howard, Ian A |e verfasserin |4 aut | |
| 700 | 1 | |a Turshatov, Andrey |e verfasserin |4 aut | |
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