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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Sustainable Liquid Luminescent Solar Concentrators

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Autor(es):
Frias, Ana R. [1] ; Correia, Sandra F. H. [1] ; Martins, Margarida [2, 3] ; Ventura, Sonia P. M. [2, 3] ; Pecoraro, Edison [4] ; Ribeiro, Sidneyj L. [4] ; Andre, Paulo S. [5, 6] ; Ferreira, Rute A. S. [1] ; Coutinho, Joao A. P. [2, 3] ; Carlos, Luis D. [1]
Número total de Autores: 10
Afiliação do(s) autor(es):
[1] Univ Aveiro, CICECO, Aveiro Inst Mat & Inst Telecomun, Dept Phys, P-3810193 Aveiro - Portugal
[2] Univ Aveiro, Dept Chem, P-3810193 Aveiro - Portugal
[3] Univ Aveiro, CICECO Aveiro Inst Mat, P-3810193 Aveiro - Portugal
[4] Sao Paulo State Univ, UNESP Inst Chem, POB 355, BR-14801970 Araraquara, SP - Brazil
[5] Univ Lisbon, Inst Super Tecn, Dept Elect & Comp Engn, P-1049001 Lisbon - Portugal
[6] Univ Aveiro, Inst Telecomun, P-3810193 Aveiro - Portugal
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: ADVANCED SUSTAINABLE SYSTEMS; v. 3, n. 3 MAR 2019.
Citações Web of Science: 3
Resumo

Luminescent solar concentrators (LSCs) are photovoltaic (PV) complementary devices to overcome the mismatch between the Si-based PV cells, response and the solar spectrum, allowing PV urban integration. Challenges for the luminescent layer include the use of abundant and sustainable natural organic molecules. Here, LSCs composed of a glass container and based on bundles of cylindrical hollow-core plastic optical fibers filled with aqueous solutions of R-phycoerythrin (R-PE), extracted from Gracilaria sp. algae are presented. The R-PE solutions absorb in the UV/visible spectral range (300-550 nm) and convert this radiation into red-emission (550-700 nm) with a maximum absolute quantum yield of approximate to 0.39. In this work, LSCs with distinct geometries are reported, in which the R-PE emission yields optical conversion efficiency values up to approximate to 6.88% and approximate to 4.74% for a planar device and for a bundle of cylindrical LSCs, respectively, which are the largest values known for liquid-based LCSs using sustainable emitting centres. Moreover, the coupling of the LSCs to commercial Si-based PV devices yields power conversion efficiency values of approximate to 0.27% (planar) and approximate to 23.03 x 10(-3)%, (bundle). These values illustrate the potential of this approach for the development of natural-based LSCs meeting the requirements of reliable, sustainable, and competitive energy systems. (AU)

Processo FAPESP: 18/07727-7 - Concentradores solares luminescentes flexíveis e de elevado desempenho para conversão fotovoltaica (SolarFlex)
Beneficiário:Sidney José Lima Ribeiro
Linha de fomento: Auxílio à Pesquisa - Regular