Print Email Facebook Twitter Scalable Photochromic Film for Solar Heat and Daylight Management Title Scalable Photochromic Film for Solar Heat and Daylight Management Author Meng, Weihao (University of Chinese Academy of Sciences) Kragt, A.J.J. (TU Delft Architectural Technology; ClimAd Technology B.V.) Gao, Yingtao (University of Chinese Academy of Sciences) Brembilla, E. (TU Delft Environmental & Climate Design) van der Burgt, Julia S. (ClimAd Technology B.V.) Schenning, Albertus P.H.J. (Eindhoven University of Technology) Klein, T. (TU Delft Architectural Technology) van den Ham, E.R. (TU Delft Environmental & Climate Design) Wang, Jingxia (University of Chinese Academy of Sciences) Date 2024 Abstract The adaptive control of sunlight through photochromic smart windows could have a huge impact on the energy efficiency and daylight comfort in buildings. However, the fabrication of inorganic nanoparticle and polymer composite photochromic films with a high contrast ratio and high transparency/low haze remains a challenge. Here, a solution method is presented for the in situ growth of copper-doped tungsten trioxide nanoparticles in polymethyl methacrylate, which allows a low-cost preparation of photochromic films with a high luminous transparency (luminous transmittance Tlum = 91%) and scalability (30 × 350 cm2). High modulation of visible light (ΔTlum = 73%) and solar heat (modulation of solar transmittance ΔTsol = 73%, modulation of solar heat gain coefficient ΔSHGC = 0.5) of the film improves the indoor daylight comfort and energy efficiency. Simulation results show that low-e windows with the photochromic film applied can greatly enhance the energy efficiency and daylight comfort. This photochromic film presents an attractive strategy for achieving more energy-efficient buildings and carbon neutrality to combat global climate change. Subject daylight comfortenergy savingphotochromicityscalabilitysmart windowstransparencytungsten trioxide To reference this document use: http://resolver.tudelft.nl/uuid:bc63aa2f-630e-47f2-a093-8042d697bc88 DOI https://doi.org/10.1002/adma.202304910 Embargo date 2024-06-05 ISSN 0935-9648 Source Advanced Materials, 36 (5) Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2024 Weihao Meng, A.J.J. Kragt, Yingtao Gao, E. Brembilla, Julia S. van der Burgt, Albertus P.H.J. Schenning, T. Klein, E.R. van den Ham, Jingxia Wang, More Authors Files PDF Advanced_Materials_-_2023 ... gement.pdf 9.76 MB Close viewer /islandora/object/uuid:bc63aa2f-630e-47f2-a093-8042d697bc88/datastream/OBJ/view