Performant flexible luminescent solar concentrators of phenylpolysiloxanes crosslinked with perylene bisimide fluorophores

Pucci, Andrea; Sabatini, Francesca; Degano, Ilaria; Martini, Francesca; Geppi, Marco; Latta, Elisa Della; Nardelli, Francesca; Battisti, Antonella; Micheletti, Cosimo; Pohl, Svenja; Kickelbick, Guido; Carlotti, Marco

doi:10.1039/d2py01428a

Cited by 6 publications

(4 citation statements)

References 49 publications

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“…For this system, it reached a maximum value of 0.65, lower than other state-ofthe-art devices 46 and data gathered from our lab comprising PMMA-based LSC (∼1−1.2), 31 but representative of the light collecting ability of the isomalt LSC devices and still comparable to other recently published devices that were not optimized for η dev . 47 A complete characterization of photonic efficiencies is available in the SI (Figure S6). Although they would have no practical use, curcumin-isomalt LSCs displayed notable performance.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Luminescent Solar Concentrators from Food Substances: A Safe and Simple Experiment to Approach Sunlight Energy Harvesting

Picchi,

Pucci,

Carlotti

2023

J. Chem. Educ.

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Safe and visually appealing experiments can help the general public, even from a young age, to better understand the fundamental role of chemistry and materials in the energy transition and our everyday lives. Luminescent solar concentrators (LSCs) are efficient devices for harvesting sunlight based on the fluorescent compounds’ properties. They constitute an exciting demonstration platform to engage audiences because of their coloration, intriguing interaction with light, and relevance toward the UN sustainability goals. While LSCs are usually made of transparent plastic and fluorescent dyes, in this study, they were fabricated employing only ready-available common food materials, such as isomalt, an amorphous sugar, and vitamin B2 or curcumin as edible fluorophores. This makes the fabrication procedure remarkably safe and rapid without affecting the final LSC’s performances, which were comparable to other state-of-the-art devices. Furthermore, a simple and rapid characterization of LSC was developed for qualitative performance determination and required only two smartphones. The gathered results render this approach appealing to design interesting dissemination experiments where the participants can explore the phenomenon of fluorescence and understand the principles behind functional real-world applications such as LSCs. In this sense, this demonstration offers an interesting take to discuss one of the many roles of chemistry in the energy transition.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Luminescent Solar Concentrators from Food Substances: A Safe and Simple Experiment to Approach Sunlight Energy Harvesting

Picchi,

Pucci,

Carlotti

2023

J. Chem. Educ.

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“…Solid-state nuclear magnetic resonance (SSNMR) has established itself as one of the most powerful techniques for the characterization of polymer structure and dynamics [36][37][38]. In the case of elastomeric materials, 1 H spin-lattice (T 1 , T 1ρ ), spin-spin (T 2 ) relaxation times, and residual 1 H-1 H dipolar couplings have proved to be valuable tools to disclose the effects of different formulations and vulcanization conditions on the structural and dynamic properties of the polymer network [39][40][41][42][43][44]. In a recent work by some of the authors, SSNMR was employed to study styrene-butadiene rubber (SBR) compounds of technological interest for the tire industry, before and after the addition of the petroleumderived tackifying resin Kristalex™ 5140 [44].…”

Section: Introductionmentioning

confidence: 99%

Exploring the Effect of Resins of Different Origin on the Structure, Dynamics and Curing Characteristics of SBR Compounds

Pierigé,

Nardelli,

Calucci

et al. 2024

Polymers

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The replacement of synthetic and petroleum-based ingredients with greener alternatives of natural origin is an imperative issue in rubber technology for the tire industry. In this study, a glycerin-esterified maleated rosin resin, derived from natural resources, is examined as a potential tackifier in styrene–butadiene rubber (SBR) formulations. A comparison is made with two synthetic resins commonly used as tackifiers in tire manufacturing: a petroleum-derived aromatic resin and a phenolic resin. Specifically, this research investigates how these resins affect the structure, dynamics, and curing characteristics of SBR compounds, which are strictly related to the mechanical and technological properties of the final products. Moving die rheometer and equilibrium swelling experiments are employed to analyze vulcanization kinetics and crosslink density, which are differently influenced by the different resins. Information on the polymer–resin compatibility is gained by differential scanning calorimetry and dynamo-mechanical analysis, while solid-state NMR methods offer insights into the structure and dynamics of both cured and uncured SBR compounds at the molecular level. Overall, our analysis shows that the resin of vegetal origin has a comparable impact on the SBR compound to that observed for the synthetic resins and could be further tested for industrial applications.

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“…1a). [5][6][7] Simple architecture and the ability to concentrate both direct and diffuse light allow LSCs to be incorporated into diverse locations such as building windows, facade claddings, and greenhouse panels. Aesthetic requirements demand transparency within a visible region, whereas the need to avoid re-absorption loss requires luminophores with large Stokes shifts.…”

Section: Introductionmentioning

confidence: 99%

Macrocyclic luminophores under confinement in a polymeric matrix – induction of large-Stokes shift by inter-unit proton transfer

Jurek¹,

Rode²,

Szymański³

et al. 2023

J. Mater. Chem. C

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Performant flexible luminescent solar concentrators of phenylpolysiloxanes crosslinked with perylene bisimide fluorophores

Abstract: In this work, flexible 5x5 cm2 luminescent solar concentrators (LSC) were prepared by integrating a reactive perylene bisimide fluorophore (FC546) into a polysiloxane network. The N,N'-diallyl units of FC546 and...

Cited by 6 publications

References 49 publications

Luminescent Solar Concentrators from Food Substances: A Safe and Simple Experiment to Approach Sunlight Energy Harvesting

Luminescent Solar Concentrators from Food Substances: A Safe and Simple Experiment to Approach Sunlight Energy Harvesting

Exploring the Effect of Resins of Different Origin on the Structure, Dynamics and Curing Characteristics of SBR Compounds

Macrocyclic luminophores under confinement in a polymeric matrix – induction of large-Stokes shift by inter-unit proton transfer

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