The role of heat treatment in improving photoluminescence and optically stimulated luminescence of HfO2Alvaro de Farias Soares, Sonia Hatsue Tatumi, Clemens Woda and Lilia Coronato CourrolEPJ Web Conf., 266 (2022) 06010DOI: https://doi.org/10.1051/epjconf/202226606010