Autor(es):
Silva, Ricardo Magno Lopes ; Hashim, Hurraira ; Roy, Deepto ; Oliveira Fernandes, Carolina ; Oliveira, Kevin ; Leitão Pinheiro, Xavier Alexandre ; Esteves, M. Alexandra ; Capelo, Anabela ; Donato, Mariana ; Oliveira, Fernando ; Ferreira, Cristina ; Alves, Isabel N. ; Cunha Diamantino, Teresa ; Barreiros, Maria Alexandra ; Rocha, Jorge ; Passos Teixeira, Jennifer ; Salomé, Pedro
Data: 2025
Identificador Persistente: http://hdl.handle.net/10400.9/6119
Origem: Repositório do LNEG
Assunto(s): Materials; Glasses; UV filter; Perovskite solar cells; Fire resistant
Descrição
ABSTRACT: 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.
