论文信息 - Growth and characterization of Y2O3:Eu3+ phosphor films by sol-gel process

Growth and characterization of Y2O3:Eu3+ phosphor films by sol-gel process

Abstract Phosphor films play an important role in high resolution display devices, remote thermometry, gas sensors, etc. These films were grown by various methods. In the present paper, europium activated yttrium oxide (Y2O3:Eu) phosphor films were deposited from yttrium hydroxide gels by dip and dry and spin coating methods. XRD of the films, calcinated at 700 to 1000°C showed all the prominent lines of the yttria phase. From SEM studies, it was observed that these films were uniform and defect free. Luminescence intensity was comparable with that of Y2O3:Eu powder samples.

Ravi P. Rao | R. P. Rao

[1] P. Maestro,et al. Mixed rare earth oxides as starting material for the preparation of Y [sub 2] O [sub 3]:Eu lamp phosphor; characterization and use , 1992 .

[2] Karl W. Beeson,et al. Low-pressure metalorganic chemical vapor deposition of photoluminescent Eu-doped Y_2O_3 films , 1990 .

[3] R. Denning. Luminescence in Inorganic Solids , 1981 .

[4] R. B. Hunt,et al. Dye‐Laser Spectroscopy of Commercial Y 2 O 3 : Eu3 + Phosphors , 1985 .

[5] J. Shmulovich,et al. Sol-gel deposition of Tb3+: Y2SiO5 cathodoluminescent layers , 1987 .

[6] R. P. Rao. Preparation and Characterization of Fine‐Grain Yttrium‐Based Phosphors by Sol‐Gel Process , 1996 .

[7] C. Falcony,et al. Photoluminescence characteristics of undoped and terbium chloride doped zinc oxide films deposited by spray pyrolysis , 1988 .

[8] W. Duley,et al. Preparation and luminescence of MgO:Tb phosphors , 1992 .

[9] J. Kane,et al. Electroluminescence and Photoluminescence of Cerium‐Activated Alkaline Earth Thiogallate Thin Films and Devices , 1994 .