[14p-2B-1~10] 13.9 Optical properties and light-emitting devices

[14p-2B-3] Effect of Cooling Process on High-Pressure Phase of SrO:Eu²⁺ Blue Phosphor

〇Keiji Komatsu¹, Atsushi Nakamura^2,1, Hidetoshi Saitoh¹ (1.Nagaoka Univ. Tech., 2.Chubu Chelest Co., Ltd.)

Keywords:blue phosphor,high-pressure phase of SrO,cooling rate

High-pressure phase of (8-coordinated) SrO structure is well known as to be high-pressure phase of SrO. New 8-coordinated SrO:Eu²⁺ blue phosphor with simple orthorhombic lattice was synthesized under atmospheric pressure.The nano-crystalline structure of the 8-coordinated SrO:Eu²⁺ phosphor on MgO was observed in the matrix which consisted of amorphous material. In this study, effect of cooling process on high-pressure phase of SrO:Eu²⁺ blue phosphor was investigated.