GdAlO3:Er3+,Yb3+ upconversion phosphor: a photonic approach to anti-counterfeiting inks - Tavares, Caique Moureira; Costa, André Lucas; Zaganini, Alessandra Mara Garbosa Mutti; Saraiva, Leonardo Figueiredo; Bispo Junior, Airton Germano; Lima, Sérgio Antonio Marques de; Pires, Ana Maria (Brazilian Materials Research Society/B-MRS, 2025)