9:30 AM - 11:30 AM [19a-PB3-10] Role of Pr3+ ions as a recombination center for electroluminescence of Ca0.6Sr0.4Ti0.9Al0.1O3-d :Pr thin films 〇Toru Kyomen1, Hiroshi Takashima2 (1.Gunma Univ., 2.AIST)