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Your search keyword '"de Bruin, Thomas A."' showing total 10 results
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10 results on '"de Bruin, Thomas A."'

1. Durable Quantum Dot‐Based Luminescent Solar Concentrators Enabled by a Photoactive Block Copolymer.

Author

Terricabres‐Polo, Raimon, de Bruin, Thomas A., Kaul, Annanta, van Sark, Wilfried G.J.H.M., and Donega, Celso de Mello

Subjects
*SOLAR concentrators, *SOLAR technology, *SOLAR energy, *QUANTUM dots, *LUMINOPHORES, *COMPATIBILIZERS
Abstract

Quantum dot (QD)‐based luminescent solar concentrators (LSCs) promise to revolutionize solar energy technology by replacing building materials with energy‐harvesting devices. However, QDs degrade under air, limiting the long‐term performance of QD‐LSCs. This study introduces an innovative approach to prevent QDs degradation by utilizing a photoactive polymer matrix (maleic anhydride‐grafted poly(styrene‐b‐ethylene‐co‐butylene‐b‐styrene, SEBS‐g‐MA). This strategy has been tested outdoors over a 2‐year period on five LSCs, followed by characterization of the weathered devices. The tested LSCs consist of three QD‐LSCs (CuInS2/ZnS, InP/ZnSe/ZnS, CdSe/CdS/ZnS core/shell QDs), alongside a Lumogen dye‐based LSC and a luminophore‐free LSC. The study yields several findings: 1) SEBS‐g‐MA undergoes photochemistry outdoors, 2) SEBS‐g‐MA accelerates the photodegradation of Lumogen, 3) the power conversion efficiency of CdSe‐based QD‐LSC drops by 80% due to reduction of the photoluminescence quantum yield, and 4) under illumination SEBS‐g‐MA protects CuInS2 and InP‐based QDs from degradation, ensuring a stable performance during the entire study. This work thus demonstrates for the first time that the interaction between the luminophores and the matrix is a critical determinant of the long‐term success of LSCs. Leveraging on the fact that this is the longest outdoor study to date, we propose design rules for highly efficient and stable QD‐LSCs. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Analysis of the 1 Year Outdoor Performance of Quantum Dot Luminescent Solar Concentrators

Author

de Bruin, Thomas A., Terricabres-Polo, Raimon, Kaul, Annanta, Zawacka, Natalia K., Prins, P. Tim, Gietema, Thomas F.J., de Waal, Anne C., de Boer, Dick K.G., Vanmaekelbergh, Daniel A.M., Leblans, Paul, Verkuilen, Stijn, Hens, Zeger, de Mello Donega, Celso, van Sark, Wilfried G.J.H.M., de Bruin, Thomas A., Terricabres-Polo, Raimon, Kaul, Annanta, Zawacka, Natalia K., Prins, P. Tim, Gietema, Thomas F.J., de Waal, Anne C., de Boer, Dick K.G., Vanmaekelbergh, Daniel A.M., Leblans, Paul, Verkuilen, Stijn, Hens, Zeger, de Mello Donega, Celso, and van Sark, Wilfried G.J.H.M.

Abstract

Three quantum dot luminescent solar concentrators (QDLSCs) are constructed to assess their performance in an outdoor environment over an entire year. The QDLSCs have a (Formula presented.) PMMA-Kraton-PMMA sandwich structure with either InP/ZnSe/ZnS, (Formula presented.), or CdSe/CdS/ZnS core/shell quantum dots incorporated in the Kraton interlayer. Furthermore, two reference LSCs are included: one using Lumogen F Red 305 as the luminophore and one without a luminophore in the Kraton layer. The power conversion efficiency is assessed for a cloudy and a sunny day, showing the influence of diffuse and direct irradiance. Moreover, the influence of mounting orientation and direct irradiance is analyzed for individual solar strips attached to the sides. Long-term results show an efficiency increase of (Formula presented.) and InP/ZnSe/ZnS QDLSC while the CdSe/CdS/ZnS QDLSCs and the Lumogen LSC show a pronounced drop in efficiency in the first 3 months. Photodegradation studies under continuous white light exposure for 420 h are performed on smaller pieces cut from the QDLSCs before their assembly outdoors and show similar trends to those observed in the 1 year outdoor study. Future research will focus on the postmortem analysis of the QDLSCs and increasing the efficiencies.

Published
2023

4. Analysis of the 1 Year Outdoor Performance of Quantum Dot Luminescent Solar Concentrators

Author

Biobased Economy, Sub Condensed Matter and Interfaces, Sub Inorganic Chemistry and Catalysis, Integration of Photovoltaic Solar Energy, Energy and Resources, Afd Nanomaterials, de Bruin, Thomas A., Terricabres-Polo, Raimon, Kaul, Annanta, Zawacka, Natalia K., Prins, P. Tim, Gietema, Thomas F.J., de Waal, Anne C., de Boer, Dick K.G., Vanmaekelbergh, Daniel A.M., Leblans, Paul, Verkuilen, Stijn, Hens, Zeger, de Mello Donega, Celso, van Sark, Wilfried G.J.H.M., Biobased Economy, Sub Condensed Matter and Interfaces, Sub Inorganic Chemistry and Catalysis, Integration of Photovoltaic Solar Energy, Energy and Resources, Afd Nanomaterials, de Bruin, Thomas A., Terricabres-Polo, Raimon, Kaul, Annanta, Zawacka, Natalia K., Prins, P. Tim, Gietema, Thomas F.J., de Waal, Anne C., de Boer, Dick K.G., Vanmaekelbergh, Daniel A.M., Leblans, Paul, Verkuilen, Stijn, Hens, Zeger, de Mello Donega, Celso, and van Sark, Wilfried G.J.H.M.

Published
2023

6. Analysis of the 1 Year Outdoor Performance of Quantum Dot Luminescent Solar Concentrators

Author

de Bruin, Thomas A, primary, Terricabres-Polo, Raimon, additional, Kaul, Annanta, additional, Zawacka, Natalia K., additional, Prins, P. Tim, additional, Gietema, Thomas F. J., additional, de Waal, Anne C., additional, de Boer, Dick K. G., additional, Vanmaekelbergh, Daniel A. M., additional, Leblans, Paul, additional, Verkuilen, Stijn, additional, Hens, Zeger, additional, de Mello Donega, Celso, additional, and van Sark, Wilfried G. J. H. M., additional

Published
2023
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7. Optimising Absorption in Luminescent Solar Concentrators constraint by Average Visible Transmission and Color Rendering Index

Author

de Bruin, Thomas A., van Sark, Wilfried G.J.H.M., Biobased Economy, Integration of Photovoltaic Solar Energy, Energy and Resources, Biobased Economy, Integration of Photovoltaic Solar Energy, and Energy and Resources

Subjects
average visible transmission, color rendering index, optimisation, Materials Science (miscellaneous), Biophysics, luminophore, General Physics and Astronomy, Physics and Astronomy(all), Physical and Theoretical Chemistry, luminescent solar concentrator, Mathematical Physics
Abstract

The luminescent solar concentrator (LSC) as energy harvesting window is an emerging technology in the realm of building integrated photovoltaics. Using recent advancement for assessing the balance between transmitted color quality and potential electricity generation, this paper optimizes theoretical luminophore absorption spectra for the highest power generation possible. The power conversion efficiencies (PCE) are based on coupling of the LSC waveguide to a highly efficient crystalline silicon solar cell. A non-convex optimisation algorithm maximizing absorption is used with constraints for color quality parameters: average visible transmission (AVT) and color rendering index (CRI). An optimal luminophore has been defined using a continuous absorption function with a cut-off and limited absorption in the visible spectrum. Two types of constraints are set: 1) 55% < AVT < 100% and 2) 55% < AVT < 100% and 70 < CRI < 100. The first constraint will ensure sufficient visible light and the second ensures appropriate color rendering. Ray-trace validated results show high power conversion efficiencies ranging from 9.53% to 14.3% for (AVT = 90%, CRI = 98) and (AVT = 55%), respectively. Future studies can use these results to benchmark (tandem) LSCs for specific lighting requirements. Furthermore, the flexibility of the proposed method allows for the adaptation to constraints not used in this paper.

Published
2022
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