Recyclable optical bioplastics platform for solid state red light harvesting<i>via</i>triplet–triplet annihilation photon upconversion

Bharmoria, Pankaj; Edhborg, Fredrik; Bildirir, Hakan; Sasaki, Yōichi; Ghasemi, Shima; Mårtensson, Anders; Yanai, Nobuhiro; Kimizuka, Nobuo; Albinsson, Bo; Börjesson, Karl; Moth‐Poulsen, Kasper

doi:10.1039/d2ta04810h

Cited by 11 publications

(20 citation statements)

References 69 publications

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“…For instance, Bharmoria et al added a sulfate functional group to the annihilator, TIPSanthracene (9,10-bis[(triisopropylsilyl)ethynyl]anthracene), which resulted in improved film transparency of the hydrophilic bioplastic matrix. 219 All in all, diversifying methods to reproducibly fabricate nanoscale molecular domains in polymeric matrices to allow for TET while minimizing detrimental aggregation-induced fluorescence quenching would propel this strategy forward.…”

Section: Polymeric Matricesmentioning

confidence: 99%

“…One interesting strategy to increase compatibility among the thin film matrix and the annihilator is to better match relative polarities. For instance, Bharmoria et al added a sulfate functional group to the annihilator, TIPS-anthracene (9,10-bis[(triisopropylsilyl)ethynyl]anthracene), which resulted in improved film transparency of the hydrophilic bioplastic matrix …”

Section: Solid-state Applicationsmentioning

confidence: 99%

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Nanoengineering Triplet–Triplet Annihilation Upconversion: From Materials to Real-World Applications

et al. 2023

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Using light to control matter has captured the imagination of scientists for generations, as there is an abundance of photons at our disposal. Yet delivering photons beyond the surface to many photoresponsive systems has proven challenging, particularly at scale, due to light attenuation via absorption and scattering losses. Triplet−triplet annihilation upconversion (TTA-UC), a process which allows for low energy photons to be converted to high energy photons, is poised to overcome these challenges by allowing for precise spatial generation of high energy photons due to its nonlinear nature. With a wide range of sensitizer and annihilator motifs available for TTA-UC, many researchers seek to integrate these materials in solution or solid-state applications. In this Review, we discuss nanoengineering deployment strategies and highlight their uses in recent state-of-the-art examples of TTA-UC integrated in both solution and solid-state applications. Considering both implementation tactics and application-specific requirements, we identify critical needs to push TTA-UC-based applications from an academic curiosity to a scalable technology.

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Section: Polymeric Matricesmentioning

confidence: 99%

Section: Solid-state Applicationsmentioning

confidence: 99%

Nanoengineering Triplet–Triplet Annihilation Upconversion: From Materials to Real-World Applications

et al. 2023

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“…The UC enhancement over time indicates that (i) the amount of dye molecules irreversibly degraded by the reactive oxygen species is negligible compared to the dyes remaining available for the UC process, and (ii) the oxygen consumption is far faster than the potential diffusion of further atmospheric air, due to the extremely good PVA oxygen barrier effect. Such a nanocomposite structure could also be extended to other natural polymers, e.g., cellulose, which was recently used to obtain stable and recyclable UC films in the air atmosphere, due to similar oxygen barrier properties …”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…Such a nanocomposite structure could also be extended to other natural polymers, e.g., cellulose, which was recently used to obtain stable and recyclable UC films in the air atmosphere, due to similar oxygen barrier properties. 70 Finally, as a proof-of-concept application, we explored the use of these films as UC luminescent solar concentrators, as UC is desirable to avoid the typical dye reabsorption of reemitted light during its traveling to the edges. 13,27,28 Successfully, localized irradiation with a CW 532 nm laser at the center of the VVUC1-CPNs@PVA film yielded intense UC emission at the edges of the film (Figures 4c and S30).…”

Section: Air-stable Uc Printed Patterns and Transparent Films Based O...mentioning

confidence: 99%

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Water-Stable Upconverting Coordination Polymer Nanoparticles for Transparent Films and Anticounterfeiting Patterns with Air-Stable Upconversion

Zhang

Ruiz‐Molina

Novio

et al. 2023

ACS Appl. Mater. Interfaces

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Photon upconversion (UC) based on triplet–triplet annihilation is a very promising phenomenon with potential application in several areas, though, due to the intrinsic mechanism, the achievement of diffusion-limited solid materials with air-stable UC is still a challenge. Herein, we report UC coordination polymer nanoparticles (CPNs) combining sensitizer and emitter molecules especially designed with alkyl spacers that promote the amorphous character. Beyond the characteristic constraints of crystalline MOFs, amorphous CPNs facilitate high dye density and flexible ratio tunability. To show the universality of the approach, two types of UC-CPNs are reported, exhibiting highly photostable UC in two different visible spectral regions. Given their nanoscale, narrow size distribution, and good chemical/colloidal stability in water, the CPNs were also successfully printed as anticounterfeiting patterns and used to make highly transparent and photostable films for luminescent solar concentrators, both showing air-stable UC.

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Aufwärtskonversion von blauem Licht zu UVB‐Strahlung, Lösungsmittelsensibilisierung und anspruchsvolle Bindungsaktivierungen durch einen Benzol‐Annihilator

et al. 2023

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Viele energetisch anspruchsvolle Photoreaktionen benötigen schädliches UV-Licht aus ineffizienten Lichtquellen. Die Umwandlung von niederenergetischem sichtbarem Licht in hochenergetische Singulett-Zustände über die Aufwärtskonversion durch Triplett-Triplett-Annihilierung (TTA-UC) könnte eine Lösung bieten, um solche Reaktionen unter milden Bedingungen durchzuführen. Wir präsentieren den ersten Annihilator mit einem Emissionsmaximum im UVB-Bereich, der in Kombination mit einem organischen Sensibilisator für die Aufwärtskonversion von blauem Licht zu UVB geeignet ist. Der angeregte Singulett-Zustand des Annihilators wurde erfolgreich als Energiedonor in einer nachgelagerten FRET-Aktivierung von aliphatischen Carbonylen eingesetzt. Die bislang weitestgehend unbekannte UC-FRET-Reaktionssequenz wurde mittels Laserspektroskopie direkt untersucht und in mechanistischen Bestrahlungsexperimenten eingesetzt, um die Machbarkeit von anspruchsvoller Norrish-Chemie zu demonstrieren. Unsere Ergebnisse liefern eindeutige Beweise für eine neuartige durch blaues Licht angetriebene Aktivierungsstrategie von Substrat-oder Lösungsmittelmolekülen, die im Zusammenhang mit der Entwicklung von nachhaltigen Systemen zur Umwandlung von Licht in chemische Energie von hoher Relevanz ist.

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Recyclable optical bioplastics platform for solid state red light harvestingviatriplet–triplet annihilation photon upconversion

Abstract: Sustainable photonics applications of solid-state triplet-triplet annihilation photon upconversion (TTA-UC) are limited by a small UC spectral window, low UC efficiency in air and non-recyclability of polymeric materials used. In...

Cited by 11 publications

References 69 publications

Nanoengineering Triplet–Triplet Annihilation Upconversion: From Materials to Real-World Applications

Nanoengineering Triplet–Triplet Annihilation Upconversion: From Materials to Real-World Applications

Water-Stable Upconverting Coordination Polymer Nanoparticles for Transparent Films and Anticounterfeiting Patterns with Air-Stable Upconversion

Aufwärtskonversion von blauem Licht zu UVB‐Strahlung, Lösungsmittelsensibilisierung und anspruchsvolle Bindungsaktivierungen durch einen Benzol‐Annihilator

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