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Energies
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Building-Integrated Photovoltaics/Luminescent Solar Concentrators
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Building-Integrated Photovoltaics/Luminescent Solar Concentrators

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (15 November 2018) | Viewed by 11061

Special Issue Editors

Dr. Paulo Sérgio de Brito André

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Guest Editor
Department of Electrical and Computer Engineering and Instituto de Telecomunicações, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
Interests: quantum and photonics technologies; fundamentals of telecommunication; optoelectronics; optical fibre communications
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Rute A. S. Ferreira

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Guest Editor
Physics Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Interests: luminescence; green photonics; solid state lighting; luminescent solar concentrators; integrated optics; spectroscopic ellipsometry; organic-inorganic hybrids; lanthanide ions
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Renewable and sustainable energy generation technologies are at the forefront due to concerns about the environment, energy independence and the high costs of fossil fuels.

Building integrated photovoltaic construction can be a powerful and versatile tool to meet the growing demand for zero energy and zero emission buildings of the near future. In this solution, photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as roof, skylight or facades, providing functional considerations and offering an aesthetic, economical and technical solution for integrating solar cells.

In this framework, this Special Issue addresses possible research opportunities and pathways for the “Building-Integrated Photovoltaics” of tomorrow.

Dr. Paulo Sérgio de Brito André
Dr. Maria Rute de Amorim e Sá Ferreira André
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Photovoltaic cells
  • solar concentrators
  • luminescente solar concentrators
  • energy harvesting
  • scale-up

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Published Papers (2 papers)

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Research

11 pages, 1105 KiB  
Article
Transparent Luminescent Solar Concentrators Using Ln3+-Based Ionosilicas Towards Photovoltaic Windows
by Ana R. Frias, Marita A. Cardoso, Ana R. N. Bastos, Sandra F. H. Correia, Paulo S. André, Luís D. Carlos, Veronica de Zea Bermudez and Rute A. S. Ferreira
Energies 2019, 12(3), 451; https://doi.org/10.3390/en12030451 - 31 Jan 2019
Cited by 42 | Viewed by 5903
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 façades and windows, into energy-generation [...] Read more.
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 façades 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 (Ln3+ = 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 × 105 and ~104 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. Full article
(This article belongs to the Special Issue Building-Integrated Photovoltaics/Luminescent Solar Concentrators)
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13 pages, 3293 KiB  
Article
Luminescent Electrochromic Devices for Smart Windows of Energy-Efficient Buildings
by Mariana Fernandes, Vânia Freitas, Sónia Pereira, Rita Leones, Maria Manuela Silva, Luís D. Carlos, Elvira Fortunato, Rute A. S. Ferreira, Rosa Rego and Verónica De Zea Bermudez
Energies 2018, 11(12), 3513; https://doi.org/10.3390/en11123513 - 17 Dec 2018
Cited by 17 | Viewed by 4455
Abstract
To address the challenges of the next generation of smart windows for energy-efficient buildings, new electrochromic devices (ECDs) are introduced. These include indium molybdenum oxide (IMO), a conducting oxide transparent in the near-infrared (NIR) region, and a NIR-emitting electrolyte. The novel electrolytes are [...] Read more.
To address the challenges of the next generation of smart windows for energy-efficient buildings, new electrochromic devices (ECDs) are introduced. These include indium molybdenum oxide (IMO), a conducting oxide transparent in the near-infrared (NIR) region, and a NIR-emitting electrolyte. The novel electrolytes are based on a sol-gel-derived di-urethane cross-linked siloxane-based host structure, including short chains of poly (ε-caprolactone) (PCL(530) (where 530 represents the average molecular weight in g mol−1). This hybrid framework was doped with a combination of either, lithium triflate (LiTrif) and erbium triflate (ErTrif3), or LiTrif and bisaquatris (thenoyltrifluoroacetonate) erbium (III) ([Er(tta)3(H2O)2]). The ECD@LiTrif-[Er(tta)3(H2O)2] device presents a typical Er3+ NIR emission around 1550 nm. The figures of merit of these devices are high cycling stability, good reversibility, and unusually high coloration efficiency (CE = ΔOD/ΔQ, where Q is the inserted/de-inserted charge density). CE values of −8824/+6569 cm2 C−1 and −8243/+5200 cm2 C−1 were achieved at 555 nm on the 400th cycle, for ECD@LiTrif-ErTrif3 and ECD@LiTrif-[Er(tta)3(H2O)2], respectively. Full article
(This article belongs to the Special Issue Building-Integrated Photovoltaics/Luminescent Solar Concentrators)
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