Vibrational, Optical Band Gap, Urbach Energy, and Thermal Activation Analysis of TiO2/CaTiO3 Perovskite. Indonesian Journal of Modern Science and Technology, [S. l.], v. 2, n. 1, p. 39–50, 2026. DOI: 10.64021/. Disponível em: https://journal.abhinaya.co.id/index.php/ijmst/article/view/330. Acesso em: 9 jul. 2026.