Shape engineered Y2O3: Eu3+ nanodots for Stokes shifting high-efficiency PMMA based transparent luminescent solar concentrator

The Role of Solar Spectral Beam Splitters in Enhancing the Solar-Energy Conversion of Existing PV and PVT Technologies

“…Other alternative methods of introducing a form of spectral modulation can be achieved through rare-earth ions, as was well reviewed in [93,94]. The major benefits of introducing such materials are their good photostability, high absorption coefficient, and significant Stokes shift [95][96][97][98][99].…”

A Superimposed QD-Based Optical Antenna for VLC: White LED Source

“…The re-emitted light density is trapped inside and directed to the edges of the waveguide through total internal reflection (TIR) and harvested by a photodetector coupled to the one small edge of the matrix. Finally, the modulated light signal is converted to an electrical signal which carries data [ 39 , 40 , 41 , 42 , 43 , 44 ]. Since the surface area of the LSC exposed to light signal is substantially higher than the edge area, it can concentrate light and improve the flux radiation incident onto the photodetector edge [ 45 , 46 ].…”

“…Up to now, different approaches have been considered to enhance the performance of the LSC [ 29 ]. Emissive material used for the light conversion is the most indispensable entity to be considered in this regard [ 41 ]; additionally, its emission peak should overlap with the maximum of the spectral response of the photodetector [ 47 ]. Vastly different types of fluorophores can be classified into organic dyes [ 48 ], lanthanide complex hybrids [ 49 ], perovskites [ 50 ], and quantum dots (QDs) [ 37 ].…”

“…Vastly different types of fluorophores can be classified into organic dyes [ 48 ], lanthanide complex hybrids [ 49 ], perovskites [ 50 ], and quantum dots (QDs) [ 37 ]. Approximately four decades ago, organic dyes such as Lumogen Red, Rhodamine B, Coumarin, etc., were a natural and high-performance choice for LSCs [ 41 ]. However, despite having upsides—such as high photoluminescence quantum yield (PLQY) (i.e., the number of emitted photons per absorbed photons in the luminescent material [ 1 ]), large absorption coefficient, easy availability, good solubility, and low cost [ 41 ]—organic dyes suffer from narrow absorption spectra and unfriendly photodegradation [ 1 ].…”

“…Approximately four decades ago, organic dyes such as Lumogen Red, Rhodamine B, Coumarin, etc., were a natural and high-performance choice for LSCs [ 41 ]. However, despite having upsides—such as high photoluminescence quantum yield (PLQY) (i.e., the number of emitted photons per absorbed photons in the luminescent material [ 1 ]), large absorption coefficient, easy availability, good solubility, and low cost [ 41 ]—organic dyes suffer from narrow absorption spectra and unfriendly photodegradation [ 1 ]. During the last decade, QDs have been pursued as an outstanding fluorophore for LSCs thanks to their excellent spectral tunability, highly efficient photoluminescence, stability, broadband absorbance, and high quantum yield (QY), which is defined by the ratio of the emitted photons to the absorbed photons in the QD [ 38 , 51 ].…”