[13p-PA10-1~21] 13.8 Optical properties and light-emitting devices

[13p-PA10-21] Afterglow property of Ca - Al - O: (Eu, Nd) phosphors synthesized
on mortar hardened body

〇Keiji Komatsu¹, Atsushi Nakamura^2,1, Riku Kawakami¹, Ariyuki Kato¹, Hidetoshi Saitoh¹ (1.Nagaoka Univ.Tech., 2.Chubu Chelest Co., Ltd.)

Keywords:Ca-Al-O: (Eu, Nd) phosphor, afterglow property, mortar hardened body

Cement-based materials are the dominant structural materials for the civil infrastructure. We propose the cement-based luminescent materials for addressing sustainability in structural and infrastructure applications. In this study, starting materials were metal-EDTA solution, mortar hardened body, and hydrogen acid (H₂-O₂) flame. In this study, we were synthesized Ca-Al-O:(Eu,Nd) phosphor with afterglow properties on mortar hardened body with (Al,Eu,Nd)- EDTA solution by coating and roasting method. Then, “Roasting” is to expose the surface of the sample to the scanning flame.