Stokes shift/emission efficiency trade-off in donor–acceptor perylenemonoimides for luminescent solar concentrators

2015 ◽  
Vol 3 (15) ◽  
pp. 8045-8054 ◽  
Author(s):  
Riccardo Turrisi ◽  
Alessandro Sanguineti ◽  
Mauro Sassi ◽  
Brett Savoie ◽  
Atsuro Takai ◽  
...  
Keyword(s):  
Stokes Shift ◽  
Careful Selection ◽  
Solar Concentrators ◽  
Trade Off ◽  
Emission Efficiency ◽  
Luminescent Solar Concentrators ◽  
Donor Acceptor ◽  
Stokes Shifts ◽  
Selection Of

Careful selection of the donor in PMIs provides the best trade-off between luminescence and Stokes shifts.

scholarly journals Synthesis and Spectroscopic Characterization of Thienopyrazine-Based Fluorophores for Application in Luminescent Solar Concentrators (LSCs)

Molecules ◽  
2021 ◽  
Vol 26 (18) ◽  
pp. 5428
Author(s):  
Xheila Yzeiri ◽  
Massimo Calamante ◽  
Alessio Dessì ◽  
Daniele Franchi ◽  
Andrea Pucci ◽  
...  
Keyword(s):  
Stokes Shift ◽  
Spectroscopic Characterization ◽  
Spectroscopic Studies ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators ◽  
Silicon Photovoltaics ◽  
Donor Acceptor ◽  
Intense Light ◽  
Stokes Shifts

Organic fluorophores have found broad application as emitters in luminescent solar concentrators (LSCs) for silicon photovoltaics. In particular, the preparation of organic conjugated systems with intense light-harvesting ability, emissions in the deep-red and NIR regions, and large Stokes shift values represent a very challenging undertaking. Here, we report a simple and easy way to prepare three symmetrical donor–acceptor–donor (DAD) organic-emitting materials based on a thienopyrazine core. The central core in the three dyes was modified with the introduction of aromatic substituents, aiming to affect their optical properties. The fluorophores were characterized by spectroscopic studies. In all cases, visible-NIR emissions with large Stokes shifts were found, highlighting these molecules as promising materials for the application in LSCs.

scholarly journals Luminescent Solar Concentrators Based on Energy Transfer from an Aggregation-Induced Emitter Conjugated Polymer

2019 ◽  
Author(s):  
Guanpeng Lyu ◽  
James Kendall ◽  
Ilaria Meazzini ◽  
Eduard Preis ◽  
Sebnem Baysec ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Stokes Shift ◽  
Optical Efficiency ◽  
Solar Concentrators ◽  
Perylene Bisimide ◽  
Luminescent Solar Concentrators ◽  
Covalent Grafting ◽  
Förster Energy Transfer ◽  
Donor Acceptor ◽  
Photoluminescence Studies

<div><div><div><p>Luminescent solar concentrators (LSCs) are solar-harvesting devices fabricated from transparent waveguide that is doped or coated with lumophores. Despite their potential for architectural integration, the optical efficiency of LSCs is often limited by incomplete harvesting of solar radiation and aggregation-caused quenching (ACQ) of lumophores in the solid state. Here, we demonstrate a multi-lumophore LSC design which circumvents these challenges through a combination of non-radiative Förster energy transfer (FRET) and aggregation-induced emission (AIE). The LSC incorporates a green-emitting poly(tetraphenylethylene), p-O-TPE, as an energy donor and a red-emitting perylene bisimide molecular dye (PDI-Sil) as the energy acceptor, within an organic-inorganic hybrid di-ureasil waveguide. Steady-state photoluminescence studies demonstrate that the di-ureasil host induced AIE from the p-O-PTE donor polymer, leading to a high photoluminescence quantum yield (PLQY) of ~45% and a large Stokes shift of ~150 nm. Covalent grafting of the PDI-Sil acceptor to the siliceous domains of the di-ureasil waveguide also inhibits non-radiative losses by preventing molecular aggregation. Due to the excellent spectral overlap, FRET was shown to occur from p-O-TPE to PDI-Sil, which increased with acceptor concentration. As a result, the final LSC (4.5 cm x 4.5 cm x 0.3 cm) with an optimised donor- acceptor ratio (1:1 by wt%) exhibited an internal photon efficiency of 20%, demonstrating a viable design for LSCs utilising an AIE-based FRET approach to improve the solar-harvesting performance.</p></div></div></div>

scholarly journals Luminescent Solar Concentrators Based on Energy Transfer from an Aggregation-Induced Emitter Conjugated Polymer

2019 ◽  
Author(s):  
Guanpeng Lyu ◽  
James Kendall ◽  
Eduard Preis ◽  
Sebnem Baysec ◽  
Ullrich Scherf ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Stokes Shift ◽  
Optical Efficiency ◽  
Solar Concentrators ◽  
Perylene Bisimide ◽  
Luminescent Solar Concentrators ◽  
Covalent Grafting ◽  
Förster Energy Transfer ◽  
Donor Acceptor ◽  
Photoluminescence Studies

<div><div><div><p>Luminescent solar concentrators (LSCs) are solar-harvesting devices fabricated from transparent waveguide that is doped or coated with lumophores. Despite their potential for architectural integration, the optical efficiency of LSCs is often limited by incomplete harvesting of solar radiation and aggregation-caused quenching (ACQ) of lumophores in the solid state. Here, we demonstrate a multi-lumophore LSC design which circumvents these challenges through a combination of non-radiative Förster energy transfer (FRET) and aggregation-induced emission (AIE). The LSC incorporates a green-emitting poly(tetraphenylethylene), p-O-TPE, as an energy donor and a red-emitting perylene bisimide molecular dye (PDI-Sil) as the energy acceptor, within an organic-inorganic hybrid di-ureasil waveguide. Steady-state photoluminescence studies demonstrate that the di-ureasil host induced AIE from the p-O-PTE donor polymer, leading to a high photoluminescence quantum yield (PLQY) of ~45% and a large Stokes shift of ~150 nm. Covalent grafting of the PDI-Sil acceptor to the siliceous domains of the di-ureasil waveguide also inhibits non-radiative losses by preventing molecular aggregation. Due to the excellent spectral overlap, FRET was shown to occur from p-O-TPE to PDI-Sil, which increased with acceptor concentration. As a result, the final LSC (4.5 cm x 4.5 cm x 0.3 cm) with an optimised donor- acceptor ratio (1:1 by wt%) exhibited an internal photon efficiency of 20%, demonstrating a viable design for LSCs utilising an AIE-based FRET approach to improve the solar-harvesting performance.</p></div></div></div>

scholarly journals Luminescent Solar Concentrators Based on Energy Transfer from an Aggregation-Induced Emitter Conjugated Polymer

2019 ◽  
Author(s):  
Guanpeng Lyu ◽  
James Kendall ◽  
Ilaria Meazzini ◽  
Eduard Preis ◽  
Sebnem Baysec ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Stokes Shift ◽  
Optical Efficiency ◽  
Solar Concentrators ◽  
Perylene Bisimide ◽  
Luminescent Solar Concentrators ◽  
Covalent Grafting ◽  
Förster Energy Transfer ◽  
Donor Acceptor ◽  
Photoluminescence Studies

<div><div><div><p>Luminescent solar concentrators (LSCs) are solar-harvesting devices fabricated from transparent waveguide that is doped or coated with lumophores. Despite their potential for architectural integration, the optical efficiency of LSCs is often limited by incomplete harvesting of solar radiation and aggregation-caused quenching (ACQ) of lumophores in the solid state. Here, we demonstrate a multi-lumophore LSC design which circumvents these challenges through a combination of non-radiative Förster energy transfer (FRET) and aggregation-induced emission (AIE). The LSC incorporates a green-emitting poly(tetraphenylethylene), p-O-TPE, as an energy donor and a red-emitting perylene bisimide molecular dye (PDI-Sil) as the energy acceptor, within an organic-inorganic hybrid di-ureasil waveguide. Steady-state photoluminescence studies demonstrate that the di-ureasil host induced AIE from the p-O-PTE donor polymer, leading to a high photoluminescence quantum yield (PLQY) of ~45% and a large Stokes shift of ~150 nm. Covalent grafting of the PDI-Sil acceptor to the siliceous domains of the di-ureasil waveguide also inhibits non-radiative losses by preventing molecular aggregation. Due to the excellent spectral overlap, FRET was shown to occur from p-O-TPE to PDI-Sil, which increased with acceptor concentration. As a result, the final LSC (4.5 cm x 4.5 cm x 0.3 cm) with an optimised donor- acceptor ratio (1:1 by wt%) exhibited an internal photon efficiency of 20%, demonstrating a viable design for LSCs utilising an AIE-based FRET approach to improve the solar-harvesting performance.</p></div></div></div>

scholarly journals Luminescent Solar Concentrators Based on Energy Transfer from an Aggregation-Induced Emitter Conjugated Polymer

2019 ◽  
Author(s):  
Guanpeng Lyu ◽  
James Kendall ◽  
Ilaria Meazzini ◽  
Eduard Preis ◽  
Sebnem Baysec ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Stokes Shift ◽  
Optical Efficiency ◽  
Solar Concentrators ◽  
Perylene Bisimide ◽  
Luminescent Solar Concentrators ◽  
Covalent Grafting ◽  
Förster Energy Transfer ◽  
Donor Acceptor ◽  
Photoluminescence Studies

<div><div><div><p>Luminescent solar concentrators (LSCs) are solar-harvesting devices fabricated from transparent waveguide that is doped or coated with lumophores. Despite their potential for architectural integration, the optical efficiency of LSCs is often limited by incomplete harvesting of solar radiation and aggregation-caused quenching (ACQ) of lumophores in the solid state. Here, we demonstrate a multi-lumophore LSC design which circumvents these challenges through a combination of non-radiative Förster energy transfer (FRET) and aggregation-induced emission (AIE). The LSC incorporates a green-emitting poly(tetraphenylethylene), p-O-TPE, as an energy donor and a red-emitting perylene bisimide molecular dye (PDI-Sil) as the energy acceptor, within an organic-inorganic hybrid di-ureasil waveguide. Steady-state photoluminescence studies demonstrate that the di-ureasil host induced AIE from the p-O-PTE donor polymer, leading to a high photoluminescence quantum yield (PLQY) of ~45% and a large Stokes shift of ~150 nm. Covalent grafting of the PDI-Sil acceptor to the siliceous domains of the di-ureasil waveguide also inhibits non-radiative losses by preventing molecular aggregation. Due to the excellent spectral overlap, FRET was shown to occur from p-O-TPE to PDI-Sil, which increased with acceptor concentration. As a result, the final LSC (4.5 cm x 4.5 cm x 0.3 cm) with an optimised donor- acceptor ratio (1:1 by wt%) exhibited an internal photon efficiency of 20%, demonstrating a viable design for LSCs utilising an AIE-based FRET approach to improve the solar-harvesting performance.</p></div></div></div>

scholarly journals Ureasil organic–inorganic hybrids as photoactive waveguides for conjugated polyelectrolyte luminescent solar concentrators

2017 ◽  
Vol 1 (11) ◽  
pp. 2271-2282 ◽  
Author(s):  
Ilaria Meazzini ◽  
Camille Blayo ◽  
Jochen Arlt ◽  
Ana-Teresa Marques ◽  
Ullrich Scherf ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Solar Concentrators ◽  
Conjugated Polyelectrolyte ◽  
Luminescent Solar Concentrators ◽  
Donor Acceptor

We test the potential of resonance energy transfer to enhance the performance of conjugated copolyelectrolyte donor–acceptor luminescent solar concentrators immobilised within a photoactive organic–inorganic ureasil waveguide.

scholarly journals Transparent Luminescent Solar Concentrators Using Ln3+-Based Ionosilicas Towards Photovoltaic Windows

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 451 ◽  
Author(s):  
Ana Frias ◽  
Marita Cardoso ◽  
Ana Bastos ◽  
Sandra Correia ◽  
Paulo André ◽  
...  
Keyword(s):  
Organic Dyes ◽  
Stokes Shift ◽  
Urban Environments ◽  
Optically Active ◽  
Lanthanide Ions ◽  
Zero Energy ◽  
Solar Concentrators ◽  
Sustainable Buildings ◽  
Luminescent Solar Concentrators ◽  
Transparent Coatings

The integration of photovoltaic (PV) elements in urban environments is gaining visibility due to the current interest in developing energetically self-sustainable buildings. Luminescent solar concentrators (LSCs) may be seen as a solution to convert urban elements, such as façades and windows, into energy-generation units for zero-energy buildings. Moreover, LSCs are able to reduce the mismatch between the AM1.5G spectrum and the PV cells absorption. In this work, we report optically active coatings for LSCs based on lanthanide ions (Ln3+ = Eu3+, Tb3+)-doped surface functionalized ionosilicas (ISs) embedded in poly(methyl methacrylate) (PMMA). These new visible-emitting films exhibit large Stokes-shift, enabling the production of transparent coatings with negligible self-absorption and large molar extinction coefficient and brightness values (~2 × 105 and ~104 M−1∙cm−1, respectively) analogous to that of orange/red-emitting organic dyes. LSCs showed great potential for efficient and environmentally resistant devices, with optical conversion efficiency values of ~0.27% and ~0.34%, respectively.

First demonstration of the use of very large Stokes shift cycloparaphenylenes as promising organic luminophores for transparent luminescent solar concentrators

2019 ◽  
Vol 55 (21) ◽  
pp. 3160-3163 ◽  
Author(s):  
Paolo Della Sala ◽  
Nunzio Buccheri ◽  
Alessandro Sanzone ◽  
Mauro Sassi ◽  
Placido Neri ◽  
...  
Keyword(s):  
Stokes Shift ◽  
Solar Concentrators ◽  
Large Stokes Shift ◽  
Luminescent Solar Concentrators ◽  
Organic Luminophores

The use of [n]CPP derivatives as luminophores in LSC-devices minimises reabsorption losses.

Limitations and design considerations for donor–acceptor systems in luminescent solar concentrators: the effect of coupling-induced red-edge absorption

2016 ◽  
Vol 18 (6) ◽  
pp. 064010 ◽  
Author(s):  
Rowan W MacQueen ◽  
Murad J Y Tayebjee ◽  
James E A Webb ◽  
Alexander Falber ◽  
Pall Thordarson ◽  
...  
Keyword(s):  
Solar Concentrators ◽  
Edge Absorption ◽  
Design Considerations ◽  
Luminescent Solar Concentrators ◽  
Red Edge ◽  
Donor Acceptor

scholarly journals Impact of Stokes Shift on the Performance of Near-Infrared Harvesting Transparent Luminescent Solar Concentrators

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Chenchen Yang ◽  
Jun Zhang ◽  
Wei-Tao Peng ◽  
Wei Sheng ◽  
Dianyi Liu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Stokes Shift ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators
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