Improvement in the performance of luminescent solar concentrator using array of cylindrical optical fibers

Mateen, Fahad; Oh, Heemuk; Kang, Jun-Gu; Lee, Sae Youn; Hong, Sung-Kyu

doi:10.1016/j.renene.2019.02.021

Cited by 25 publications

(16 citation statements)

References 36 publications

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“…[204] Recently, it was reported that the insertion of an array of optical fibers between an LSC and a diffusing white reflector led to a significant increase of efficiency of a 10 × 3.5 × 0.3 cm LSC leading to the best PCE of 0.88%. [205]…”

Section: Cylinders and Optical Fibersmentioning

confidence: 99%

Luminescent Solar Collectors: Quo Vadis?

Roncali

2020

Advanced Energy Materials

120

111

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Luminescent solar concentrators (LSCs) are optical systems that absorb, convert, and concentrate solar light by means of photoluminescence of an emitting material embedded in a transparent waveguide. LSCs combine large possibilities of variation of shape, flexibility, color, and transparency and can operate under direct or diffuse light. LSCs were actively investigated in the period 1975–1985 in view of photovoltaic (PV) conversion. After 20 years of sleep, research on LSCs has reemerged in the first years of the millennium driven by their potential application for PV conversion in built environment. Research on LSCs aims at the development of new active and passive components, namely emitting and light‐guiding materials, and at the reduction of the loss factors associated with the elemental processed involved in the operation in order to improve power conversion efficiency. After a brief historical account, the operating principles, characterization, components, technology, and applications are reviewed. Finally, the performance of LSCs are critically discussed in a global perspective with particular emphasis on the basic contradiction between light concentration and conversion efficiency leading to some suggestions for future development of the topic.

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Section: Cylinders and Optical Fibersmentioning

confidence: 99%

Luminescent Solar Collectors: Quo Vadis?

Roncali

2020

Advanced Energy Materials

120

111

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“…However, traditional square LSCs present difficulties in the coupling the output light to PV cells and to passive fibers for light guiding to remote locations. To overcome these limitations, a cylindrical LSC based on doped polymer optical fibers, namely fluorescent fiber solar concentrator (FFSC) appears to be a highly competent solution [11,12,13,14,15]. The structure of POFs adds several benefits, such as easy manipulation by the user, and easy butt-coupling to transparent optical fibers for light waveguiding, which allows spatial separation between the light harvesting system and the final system placement.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Double-Doped Polymer Optical Fibers as Luminescent Solar Concentrators

et al. 2019

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This work reports on a diameter dependence analysis of the performance as luminescent solar concentrators of three self-fabricated polymer optical fibers (POFs) doped with a hybrid combination of dopants. The works carried out include the design and self-fabrication of the different diameter fibers; an experimental analysis of the output power, of the output irradiance and of the fluorescent fiber solar concentrator efficiency; a comparison of the experimental results with a theoretical model; a study of the performance of all the fibers under different simulated lighting conditions; and a calculation of the active fiber length of each of the samples, all of them as a function of the fiber core diameter. To the best of our knowledge, this paper reports the first analysis of the influence of the POF diameter for luminescent solar concentration applications. The results obtained offer a general perspective on the optimal design of solar energy concentrating systems based on doped POFs and pave the way for the implementation of cost-effective solar energy concentrating devices.

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“…5 Moreover, they can be easily fabricated into various shapes through a sol-gel process, making them compatible with a variety of architectural designs. 37,38,39 We postulated that the structure of the ureasil, in particular the apolar nature of the alkyl-shielded siloxane backbone, 40 may help to induce the aggregation of p-O-TPE, thus enhancing the emission efficiency in the solid state. As the acceptor, we chose perylene carboxdiimide-bridged triethoxysilane (PDI-Sil), a red-emitter related to the archetypal LSC lumophore Lumogen Red 305 (LR305).…”

Section: Introductionmentioning

confidence: 99%

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

Lyu,

Kendall,

Meazzini

et al. 2019

Preprint

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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 ´ 4.5 cm ´ 0.3 cm) with an optimised donoracceptor 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.reduced loss of absorbed photons as a result of the FRET process. Enhancement in the external photon efficiency of the donor-acceptor LSC was also observed due to the extended solarharvesting window provided by the complementary absorption spectra of the dual lumophore system. The results also demonstrate the importance of lumophore-waveguide interactions in determining the final LSC efficiency. Here, the di-ureasil waveguide is used to promote aggregation and thus switch-on emission from the AIE-donor, while simultaneously covalent grafting of the acceptor reduces ACQ. This study therefore demonstrates that the bottom-up design of integrated lumophore-waveguide materials is a viable strategy to overcome the intrinsic optical losses of LSCs and to boost their solar-harvesting performance. ASSOCIATED CONTENTSupporting Information.

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Improvement in the performance of luminescent solar concentrator using array of cylindrical optical fibers

Cited by 25 publications

References 36 publications

Luminescent Solar Collectors: Quo Vadis?

Luminescent Solar Collectors: Quo Vadis?

Characterization of Double-Doped Polymer Optical Fibers as Luminescent Solar Concentrators

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

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