Programs
- M. Tech. in Automotive Engineering -
- Fellowship In Interventional Pulmonology and Pulmonary Critical care - Fellowship
Publication Type : Journal Article
Publisher : IOP Conference Series: Materials Science and Engineering, IOP Publishing,
Source : IOP Conference Series: Materials Science and Engineering, IOP Publishing, Volume 577, p.012184 (2019)
Url : https://iopscience.iop.org/article/10.1088/1757-899X/577/1/012184
Campus : Bengaluru
School : School of Engineering
Department : Physics
Year : 2019
Abstract : Mimosa pudica(MP) plant extract was used to prepare Y2O3:Tm3+ (1-11mol %) nanoscale superstructure with nitrate source as precursors. The samples were characterized by advanced characterization techniques. The PXRD peaks indicates crystalline, no impurity peaks were present with body centre cubic structure of Y2O3. Photoluminescence emission spectra shows blue color emission at 358 nm excitation wavelength. The major peak of Tm3+ was at 453 nm and two very weak peaks were observed at ∼ 474 nm attributed to the transitions of 1D2 → 3 F4 and 1G4 → 3H6, res. The calculated color co-ordinates were matches to the NTSC blue color. Correlated color temperature was ∼ 4000 K. So the Y2O3:Tm3+ nanophosphor could be used for blue component in the warm WLED and SSL devices.
Cite this Research Publication : K. N. Venkatachalaiah, Nagabhushana, H., and Venkataravanappa, M., “Bio-mediated Combustion Synthesis and Color Characteristic Studies of Y2O3:Tm3+ Nanoscale Superstructures”, IOP Conference Series: Materials Science and Engineering, vol. 577, p. 012184, 2019.