Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nanocomposite Windows Converting Solar Power into Electricity for Self-Sustaining Buildings
We report on polymer nanocomposite window coatings embedded with the nanoparticles of rare-earth (RE)-doped fluoride phosphor NaYF4:Yb3+,Er3+ (molar proportion: a = 3% of Er3+, b = 1 to 5% of Yb3+, and [100% − (a + b)] of Y3+) for efficient luminescent solar concentrators (LSCs). The coatings were transferred on windows using the concurrent multi-beam multi-target pulsed laser deposition of the inorganic target material and matrix-assisted pulsed laser evaporation of the polymer (MBMT-PLD/MAPLE). Polymer poly(methyl methacrylate) (PMMA) was evaporated from its solution in chlorobenzene (kept frozen in circulating liquid nitrogen) with the beam from fundamental harmonic (1064 nm) of a Q-switched Nd:YAG laser concurrently with the inorganic phosphor target ablated with the beam from 2-nd harmonic (532 nm) of the same laser. Sunlight is absorbed by the phosphor nanoparticles embedded in the 150-nm-thick polymer film and converted into near-infrared (NIR) radiation via the mechanism of downconversion (quantum cutting). The NIR radiation propagates via the glass window plate as a light guide and is converted to electric power with photovoltaic cells attached to the edges of the plate. The advantage of the proposed polymer nanocomposite LSCs is a broad absorption spectrum covering a significant portion of the solar radiation spectrum, high spectral conversion efficiency, and low reabsorption due to minimal overlap between the absorption and emission spectra (large Stokes shift). The power concentration factor of the polymer nanocomposite LSC is expected to be of the order of 10.
Nanocomposite Windows Converting Solar Power into Electricity for Self-Sustaining Buildings
We report on polymer nanocomposite window coatings embedded with the nanoparticles of rare-earth (RE)-doped fluoride phosphor NaYF4:Yb3+,Er3+ (molar proportion: a = 3% of Er3+, b = 1 to 5% of Yb3+, and [100% − (a + b)] of Y3+) for efficient luminescent solar concentrators (LSCs). The coatings were transferred on windows using the concurrent multi-beam multi-target pulsed laser deposition of the inorganic target material and matrix-assisted pulsed laser evaporation of the polymer (MBMT-PLD/MAPLE). Polymer poly(methyl methacrylate) (PMMA) was evaporated from its solution in chlorobenzene (kept frozen in circulating liquid nitrogen) with the beam from fundamental harmonic (1064 nm) of a Q-switched Nd:YAG laser concurrently with the inorganic phosphor target ablated with the beam from 2-nd harmonic (532 nm) of the same laser. Sunlight is absorbed by the phosphor nanoparticles embedded in the 150-nm-thick polymer film and converted into near-infrared (NIR) radiation via the mechanism of downconversion (quantum cutting). The NIR radiation propagates via the glass window plate as a light guide and is converted to electric power with photovoltaic cells attached to the edges of the plate. The advantage of the proposed polymer nanocomposite LSCs is a broad absorption spectrum covering a significant portion of the solar radiation spectrum, high spectral conversion efficiency, and low reabsorption due to minimal overlap between the absorption and emission spectra (large Stokes shift). The power concentration factor of the polymer nanocomposite LSC is expected to be of the order of 10.
Nanocomposite Windows Converting Solar Power into Electricity for Self-Sustaining Buildings
Bumajdad, Ali (Herausgeber:in) / Bouhamra, Walid (Herausgeber:in) / Alsayegh, Osamah A. (Herausgeber:in) / Kamal, Hasan A. (Herausgeber:in) / Alhajraf, Salem Falah (Herausgeber:in) / Darwish, A. M. (Autor:in) / Sarkisov, S. S. (Autor:in) / Patel, D. N. (Autor:in)
Gulf Conference on Sustainable Built Environment ; Kapitel: 21 ; 367-382
08.04.2020
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Self-sustaining building , Nanocomposite construction material , Photovoltaic solar power , Luminescent solar concentrator , Spectral downconversion , Multi-beam pulsed laser deposition Energy , Sustainable Architecture/Green Buildings , Building Construction and Design , Sustainable Development , Structural Materials , Building Materials , Landscape/Regional and Urban Planning
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