| Texto completo | |
| Autor(es): |
Sandrini, Marcelo
;
Gemelli, Jefferson Cristiano
;
Gibin, Mariana Sversut
;
Zanuto, Vitor Santaella
;
Muniz, Robson Ferrari
;
de Vicente, Fabio Simoes
;
Belancon, Marcos Paulo
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Non-Crystalline Solids; v. 600, p. 7-pg., 2023-01-15. |
| Resumo | |
The UV-induced polymeric encapsulant degradation in the photovoltaic panel is a challenge in extending the operating lifetime of such devices. To overcome that, an anti-reflective coating material that blocks the UV incidence can be an alternative. In this sense, this work presents high optical quality GPTS/TEOS monolithic xerogels doped with cerium prepared by the sol-gel process. X-ray diffraction, thermal analysis, and infrared spectroscopy results reveal an amorphous hybrid structure stable with the dopant concentration, up to 1 wt%. The undoped matrix shows a wide transmission window, and the cerium addition results in a redshift of the cut-off edge, from similar to 300 to 410 nm, and a slight reduction in reflectance. Moreover, all samples present a refractive index well matched with the ethylene-vinyl acetate (EVA) encapsulant, which minimizes reflectance losses. These results highlight the potential of the cerium-doped GPTS/TEOS system as a candidate for UV filter coating on photovoltaic panels. (AU) | |
| Processo FAPESP: | 11/18149-5 - Estudo de filmes híbridos de sílica luminescentes e fotossensíveis preparados via sol-gel |
| Beneficiário: | Fábio Simões de Vicente |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |