Transparent Luminescent Solar Concentrators Using Ln(3+)-Based Ionosilicas Towards Photovoltaic Windows
authors Frias, AR; Cardoso, MA; Bastos, ARN; Correia, SFH; Andre, PS; Carlos, LD; Bermudez, VD; Ferreira, RAS
nationality International
journal ENERGIES
author keywords Luminescent solar concentrators; photovoltaics; lanthanides; poly(methyl methacrylate); ionosilicas
keywords NOISE BARRIER; PERFORMANCE; EFFICIENCY; FILMS; PHOTOLUMINESCENCE; COMPLEXES; POLYMERS; SPECTRA; LIGAND; CELLS
abstract 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 facades 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 (Ln(3+) = 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 x 10(5) and 10(4) 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.
publisher MDPI
issn 1996-1073
year published 2019
volume 12
issue 3
digital object identifier (doi) 10.3390/en12030451
web of science category Energy & Fuels
subject category Energy & Fuels
unique article identifier WOS:000460666200119
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journal analysis (jcr 2017):
journal impact factor 2.676
5 year journal impact factor 3.045
category normalized journal impact factor percentile 51.031
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