Simultaneous excitation at IR and UV of RE3+ triply doped SiO2-Gd2O3 materials for energy conversion purposes - Rezende, Thaís Karine de Lima; Barbosa, Helliomar Pereira; Lima, Karmel de Oliveira; Sousa Márcio Góes; Lima, Renata Cristina de; Gonçalves, Rogéria Rocha; Ferrari, Jefferson Luis (Ceramics International, 2021)