Y. Izumi

An X-Ray Photoelectron Spectroscopy Study of Elements' Chemical States in SrGa2S4:Ce Blue Electroluminescent Thin Films

S. Okamoto, Y. Izumi, Katsu Tanaka, 1999 .

Crystallographic and luminescent characterizations of blue-emitting BaAl2S4 : Eu electroluminescent thin films

Shinji Okamoto, Youji Inoue, Yoshitaka Izumi, 2002 .

Atomic Composition and Structural Properties of Blue Emitting BaAl2S4:Eu Electroluminescent Thin Films

S. Okamoto, D. Barada, Y. Inoue, 2001 .

Electroluminescence properties of rare-earth-activated SrS thin films under light irradiation

S. Okamoto, Y. Izumi, Katsu Tanaka, 2000 .

Simple Measurement of Quantum Efficiency in Organic Electroluminescent Devices

S. Okamoto, Takeo Suzuki, Y. Izumi, 2001 .

Selective heat-transfer dye diffusion technique using laser irradiation for polymer electroluminescent devices

Katsu Tanaka, Norihiko Ishii, Isao Tanaka, 2002 .