INVESTIGATION OF LUMINESCENCE STUDIES ON Tm3+ DOPED KBr SINGLECRYSTALS. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 4, n. 11, p. 999–1007, 2017. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/4250. Acesso em: 6 sep. 2025.