Luminescence properties of Tb3+ doped Sr2SnO4 green phosphor in UV/VUV regions |
| |
| Authors: | M Srinivas B Appa Rao M Vithal P Raghava Rao |
| |
| Institution: | 1. Department of Physics, Osmania University, , Hyderabad, 500 007 A.P, India;2. Department of Chemistry, Osmania University, , Hyderabad, 500 007 A.P, India;3. Department of Physics, Acharya Nagarjuna University‐Nuzvid Campus, , Nuzvid, 521 201 A.P, India |
| |
| Abstract: | Polycrystalline Sr2SnO4 phosphors doped with Tb3+ were prepared by conventional solid‐state reaction method. Materials were characterized by powder XRD and EDS techniques. The luminescence properties of these materials were investigated under UV and VUV excitation. Upon excitation at 272 nm, phosphors exhibited intense emissions at 492 and 543 nm due to 5D4 → 7 F6 and 5D4 → 7 F5 transitions of Tb3+ ions, respectively. Materials also exhibited strong emissions from these transitions under VUV excitation at 147, 173 and 230 nm. Quantitative analysis of the spectra indicated probable applications of these phosphors for PDP and other display devices as green emitting phosphors. Copyright © 2012 John Wiley & Sons, Ltd. |
| |
| Keywords: | phosphors X‐ray technique VUV photoluminescence green phosphor |
|
|
