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Special Issue "Building-Integrated Photovoltaics/Luminescent Solar Concentrators"

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

Deadline for manuscript submissions: closed (15 November 2018)

Special Issue Editors

Guest Editor
Dr. Paulo Sérgio de Brito André

Department of Electrical and Computer Engineering, Instituto Superior Técnico, University of Lisbon, Portugal
Website | E-Mail
Phone: +351 21 841 84 54
Fax: +351 21 841 84 72
Interests: Fundamentals of Telecommunication; Introduction to the Research in Electrical and Computer Engineering; Optoelectronics; Fundamentals of Telecommunication; Optical Fibre Telecommunication Systems; Photonic Integration
Guest Editor
Prof. Rute A.S. Ferreira

Physics Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
Website | E-Mail
Phone: +234 378 103
Interests: luminescence; green photonics; solid state lighting; luminescent solar concentrators; integrated optics; spectroscopic ellipsometry; organic-inorganic hybrids; lanthanide ions

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

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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 1800 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

Published Papers (2 papers)

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Research

Open AccessArticle Transparent Luminescent Solar Concentrators Using Ln3+-Based Ionosilicas Towards Photovoltaic Windows
Energies 2019, 12(3), 451; https://doi.org/10.3390/en12030451
Received: 28 December 2018 / Revised: 26 January 2019 / Accepted: 28 January 2019 / Published: 31 January 2019
PDF Full-text (1105 KB) | HTML Full-text | XML Full-text | Supplementary Files
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)
Figures

Graphical abstract

Open AccessArticle Luminescent Electrochromic Devices for Smart Windows of Energy-Efficient Buildings
Energies 2018, 11(12), 3513; https://doi.org/10.3390/en11123513
Received: 19 November 2018 / Revised: 4 December 2018 / Accepted: 11 December 2018 / Published: 17 December 2018
PDF Full-text (3293 KB) | HTML Full-text | XML Full-text | Supplementary Files
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 [email protected][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 [email protected]3 and [email protected][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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