[12p-A303-1~15] 13.8 Optical properties and light-emitting devices

[12p-A303-8] UV lamps excited by Xe₂^* VUV light source

〇Yuichiro Hatanaka¹, Tadashi Ishigaki¹, Kotoku Ohmi¹, Kaisei Iwata², Masaru Nakamura² (1.Tottori Univ., 2.QUARK TECHNOLOGY CO.)

Keywords:Xe2* VUV light, UV lamps, phosphor

Using a 172 nm vacuum ultraviolet (VUV) Xe₂^* excimer lamp as an excitation light source, we aim to develop an ultraviolet lamp with an emission peak near the mercury resonance line (254 nm). We synthesized YPO₄:Bi, YPO₄:Pr, and YBO₃:Pr phosphors, and evaluated the photoluminescence (PL) intensity during VUV excitation. The PL intensity of YPO₄:Bi was extremely high, and the light emission increased with decreasing the filling thickness.