Characterization and reduction of reabsorption losses in luminescent solar concentrators
Lindsay R. Wilson,Brenda C. Rowan,Neil Robertson,Omar Moudam,Anita C. Jones,Bryce S. Richards +5 more
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The effects of excitation wavelength on the optical properties of a luminescent solar concentrator (LSC) containing a fluorescent organic dye (Lumogen F Rot 305) are studied and the optical efficiency is shown to depend strongly on the Stokes shift of the fluorophore.Abstract:
The effects of excitation wavelength on the optical properties (emission spectrum and quantum yield) of a luminescent solar concentrator (LSC) containing a fluorescent organic dye (Lumogen F Rot 305) are studied. Excitation at wavelengths on the long-wavelength edge of the absorption spectrum of the dye results in redshifted emission, but the quantum yield remains constant at 100%. The origin of this effect and its consequences are discussed. The extent of the long-wavelength tail of the absorption spectrum of the dye is determined and the importance in reabsorption losses is shown. The optical efficiencies and photon transport probabilities of LSCs containing either an organic dye or a rare-earth lanthanide complex are compared using ray-tracing simulations and experiment. The optical efficiency is shown to depend strongly on the Stokes shift of the fluorophore. The lanthanide complex, which has a very large Stokes shift, exhibits a higher optical efficiency than the dye (64% cf. 50%), despite its lower quantum yield (86% cf. 100%).read more
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Dissertation
Upconverter and downconverter luminescent materials : progress and strategies towards highly efficient photovoltaic solar cells
TL;DR: In this article, the downconversion and upconversion properties of rare earth doped materials were investigated for the spectral conversion of part of the solar spectrum, in order to enhance the performances of silicon photovoltaic devices.
Proceedings ArticleDOI
A simulation on incorporation of PCM in TLSC for optimum efficiency of the system
TL;DR: In this article, phase change material is placed adjacent to the PhotoVoltaic Material at the sides of the slab which is used to harvest the electrical energy from the electrons emitted due to solar radiation.
Book ChapterDOI
Polymer Nanocomposites and Metal Halide Perovskites for Luminescent Solar Concentrator Applications—Host Materials Perspective
TL;DR: In this paper , a new kind of material (metal halide perovskite) used to fabricate semi-transparent and large-area luminescent solar concentrators is discussed in detail.
Journal ArticleDOI
Near-infrared quantum cutting in NaYF4:Ce3+,Yb3+ nanocrystals for luminescent solar concentrators
TL;DR: In this article , a series of Ce3+-Yb3+ ions codoped NaYF4 nanocrystals were prepared by hydrothermal method and the structure, morphologies, photoluminescence properties and fluorescence dynamics were studied systemically.
References
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Journal ArticleDOI
Correlation between the lowest triplet state energy level of the ligand and lanthanide(III) luminescence quantum yield
Martti Latva,Harri Takalo,Veli-Matti Mukkala,Cristina Matachescu,Juan Carlos Rodríguez-Ubis,Jouko Kankare +5 more
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Journal ArticleDOI
The emission spectrum and the radiative lifetime of Eu3+ in luminescent lanthanide complexes
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Journal ArticleDOI
Luminescent greenhouse collector for solar radiation.
Willes H. Weber,John J Lambe +1 more
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