Silva, Ricardo Magno LopesHashim, HurrairaRoy, DeeptoOliveira Fernandes, CarolinaOliveira, KevinLeitão Pinheiro, Xavier AlexandreEsteves, M. AlexandraCapelo, AnabelaDonato, MarianaOliveira, FernandoFerreira, CristinaAlves, Isabel N.Cunha Diamantino, TeresaBarreiros, Maria AlexandraRocha, JorgePassos Teixeira, JenniferSalomé, Pedro2025-10-222025-10-222025-06Silva, R., Hashim, H., Roy, D., Fernandes, C. O., Oliveira, K., Pinheiro, X. L., Esteves, M. A., Capelo, A., Donato, M. T., Oliveira, F. A. C., Ferreira, C., Alves, I. N., Diamantino, T. C., Barreiros, M. A., Rocha, J., Teixeira, J. & Salomé, P. (2025). Dielectric UV filters for protection of fire-resistant glass based on intumescent layers. In: Proceedings for the CEES 2025 - 3rd International Conference on Con-struction, Energy, Environment and Sustainability, Bari, Italy, 11-13 June, 2025. ISBN: 978-989-54499-7-2978-989-54499-7-2http://hdl.handle.net/10400.9/6119ABSTRACT: Structures such as OLEDs, perovskite solar cells, intumescent glasses, and other components in modern devices and buildings contain materials suscep-tible to degradation when exposed to UV radiation, requiring protection to with-stand outdoor environmental conditions. In this work, multilayer coating config-ured as a Bragg Reflector on glass is employed as spectral filtering to protect the intumescent component of fire-resistant glass from degradation due to prolonged UV solar radiation exposure. By alternating low-n (SiO2)/high-n (TiO2) dielectric layers through spin-coating, precise control over film thickness could be achieved, allowing the fabrication of thin (<700 nm) UV filters with high trans-mission of visible sunlight – 88% of the 780 to 380 nm wavelength range – while reflecting almost all the incident UV – 90% of the wavelength below 380nm. Using relatively simple techniques, high precision coating was successfully achieved, resulting in an effective UV radiation protective barrier applied to en-hance the durability of the components in fire-resistant glass.engMaterialsGlassesUV filterPerovskite solar cellsFire resistantconference object