[13a-A35-1~10] 13.9 Optical properties and light-emitting devices

[13a-A35-9] Composition optimization of Er_xYb_yY_2-x-ySiO₅ crystal and its great sensitization effect

Fumiya Kondo¹, 〇Hideo Isshiki¹ (1.Univ. of Electro-Comm.)

Keywords:erbium, sensitization effect, rare earth silicates

Er_xYb_yY_2-x-ySiO₅ (x=0.25, y=0~0.5) crystalline thin films were fabricated by PLD and evaluated the sensitization effect by PL and their decay measurements. The PL measurement results indicate the max intensity at Yb/Er=1 and then the sensitixation effect of Yb for excitation is estimated to be 10.1 times.