Optimized excitation energy transfer in a three-dye luminescent solar concentrator

Bailey, Sheldon T.; Lokey, Gretchen E.; Hanes, Melinda S.; Shearer, John D.M.; McLafferty, Jason; Beaumont, Gregg T.; Baseler, Timothy T.; Layhue, Joshua M.; Broussard, Dustin R.; Zhang, Yu Zhong; Wittmershaus, Bruce P.

doi:10.1016/j.solmat.2006.07.011

Cited by 116 publications

(66 citation statements)

References 20 publications

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“…4,5 Selecting a chromophore with little overlap between the absorbtion and emission band is the simplest way to limit reabsorption, 6 but these spectral properties rarely occur in conjunction with a high luminescence quantum yield necessary for overall device efficiency. 1,2,7,8 Another solution is to transfer optical excitations to a redder-emitting species which has a greatly decreased optical density across the waveg-uide modes 9,10 by Förster resonance energy transfer (FRET). 11 In this way, the likelihood of reabsorption is decreased compared to the case where only one chromophore is employed.…”

Section: Introductionmentioning

confidence: 99%

Energy transfer in pendant perylene diimide copolymers

et al. 2016

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We report the synthesis, characterisation and polymerisation of two novel asymmetric perylene diimide acrylate monomers. The novel monomers form a sensitiser-acceptor pair capable of undergoing Förster resonance energy transfer, and were incorporated as copolymers with tert-butyl acrylate. The tert-butyl acrylate units act as spacers along the polymer chain allowing high concentrations of dye while mitigating aggregate quenching, leading to persistent fluorescence in the solid state at high concentrations of up to 0.3 M. Analysis of fluorescence kinetics showed efficient energy transfer between the optically dense sensitiser and the lower concentration acceptor luminophores within the polymer. This reduced reabsorption within the material demonstrates that the copolymer-scaffold energy transfer system has potential for use in luminescent solar concentrators.

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Section: Introductionmentioning

confidence: 99%

Energy transfer in pendant perylene diimide copolymers

et al. 2016

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“…The plastic film displayed clear evidence for total internal reflection and appears to be promising as a solar concentrator. [39] Energy transfer from the pyrene-like unit: The pyrene-like unit absorbs at higher energy than its perylene-like counterpart, but owing to overlapping absorption transitions it is not possible to excite the pyrene unit in GPyPeF with complete selectivity. This situation is exacerbated by overlap with weak absorption transitions associated with the GF unit.…”

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confidence: 99%

Electronic Energy Transfer to the S₂ Level of the Acceptor in Functionalised Boron Dipyrromethene Dyes

Harriman

Mallon

Goeb

et al. 2009

Chemistry A European J

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Taking the high road: Highly efficient electronic energy transfer takes place from a set of appended aryl polycyclic hydrocarbons to an expanded boron dipyrromethene (Bodipy)-based dye (see figure) despite negligible spectral overlap with the lowest-energy excited state localised on the acceptor.A multi-component array has been constructed around an expanded boron dipyrromethene (Bodipy) dye that absorbs and emits in the far-red region. One of the appendages is a perylene-based moiety that is connected to the boron atom of the terminal Bodipy by a 1,4-diethynylphenylene connector. Despite the fact that there is almost negligible spectral overlap between fluorescence from the perylene unit and absorption by the Bodipy residue, electronic energy transfer is rapid and essentially quantitative. It is concluded that at least half of the photons absorbed by perylene are transferred to the upper-lying singlet excited state (S(2)) associated with the Bodipy-based acceptor. The second appendage is a pyrene unit that is covalently linked to fluorene, through an ethynylene spacer, and to the boron atom of the Bodipy terminus, through a 1,4-diethynylphenylene connector. Pyrene absorbs and emits at higher energy than perylene and there is strong spectral overlap with the Bodipy-based S(2) state, and none with the corresponding S(1) state. Electronic energy transfer is now very fast and exclusively to the S(2) state of the acceptor. It is difficult to compute reasonable estimates for the rates of Coulombic energy transfer, because of uncertainties in the orientation factor, but the principle mechanism is believed to arise from electron exchange. Comparison with an earlier array built around a conventional Bodipy dye indicates that there are comparable electronic coupling matrix elements for the two systems. It is notable that pyrene is more strongly coupled to the Bodipy unit than perylene in both arrays. These new arrays function as highly effective solar concentrators.

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“…A typical fluorescent collector absorbs the incident sunlight through the front face of a luminescent plate and a fraction of the reemitted photons are trapped by total internal reflection (TIR) and directed towards a PV cell generally mounted on the edges of the collector. The luminescent solar concentrators using liquid solutions contained between transparent plates have received a little attention [4,5]. Moreover, they represent an interesting fundamental system which can be used for a wide range of theoretical and spectroscopic studies, helping to understand the basic performance of fluorescent dye under illumination.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Fluorescence and Photostability Based on Interaction of Fluorescent Dyes with Silver Nanoparticles for Luminescent Solar Concentrators

El-Molla

Mansour

Hammad

2017

Journal of Nanomaterials

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For luminescent solar concentrators (LSCs), it is important to enhance the fluorescence quantum yield (FQY) and photostability. Our measurements have demonstrated that the addition of silver nanoparticles to dye solution causes broadening of absorption bands, so the spectral range of sunlight absorbed by LSC has increased. Silver nanoparticles (NPs) were characterized by X-ray diffraction (XRD) and UV-Vis absorption spectra. UV-Vis spectrum showed a single peak at 442 nm due to the surface plasmon resonance (SPR). The position of SPR peak exhibited a red shift after the sample was exposed to UV irradiation (unfiltered light). The optical band gap values have a reduction from 2.46 to 2.37 eV after irradiation for 960 minutes. Such reduction in optical band gap may be due to change in particle size calculated using Mie theory. The photostability of organic dyes used was improved after adding silver nanoparticles. The area under fluorescence spectra of dyes with silver NPs increased by 41-31% when compared with identical dye concentrations without silver nanoparticles as a result of interaction of the species with silver NPs.

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Optimized excitation energy transfer in a three-dye luminescent solar concentrator

Cited by 116 publications

References 20 publications

Energy transfer in pendant perylene diimide copolymers

Energy transfer in pendant perylene diimide copolymers

Electronic Energy Transfer to the S₂ Level of the Acceptor in Functionalised Boron Dipyrromethene Dyes

Enhancement of Fluorescence and Photostability Based on Interaction of Fluorescent Dyes with Silver Nanoparticles for Luminescent Solar Concentrators

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Optimized excitation energy transfer in a three-dye luminescent solar concentrator

Cited by 116 publications

References 20 publications

Energy transfer in pendant perylene diimide copolymers

Energy transfer in pendant perylene diimide copolymers

Electronic Energy Transfer to the S2 Level of the Acceptor in Functionalised Boron Dipyrromethene Dyes

Enhancement of Fluorescence and Photostability Based on Interaction of Fluorescent Dyes with Silver Nanoparticles for Luminescent Solar Concentrators

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Electronic Energy Transfer to the S₂ Level of the Acceptor in Functionalised Boron Dipyrromethene Dyes