Open AccessBio-mediated Combustion Synthesis and Color Characteristic Studies of Y2O3:Tm3+ Nanoscale Superstructures
Author(s) -
K.N. Venkatachalaiah,
H. Nagabhushana,
M. Venkataravanappa
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/577/1/012184
Subject(s) - photoluminescence , materials science , analytical chemistry (journal) , nanoscopic scale , impurity , crystallography , nanotechnology , chemistry , optoelectronics , organic chemistry
Mimosa pudica(MP) plant extract was used to prepare Y 2 O 3 :Tm 3+ (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 Y 2 O 3 . Photoluminescence emission spectra shows blue color emission at 358 nm excitation wavelength. The major peak of Tm 3+ was at 453 nm and two very weak peaks were observed at ∼ 474 nm attributed to the transitions of 1 D 2 → 3 F 4 and 1 G 4 → 3 H 6 , res. The calculated color co-ordinates were matches to the NTSC blue color. Correlated color temperature was ∼ 4000 K. So the Y 2 O 3 :Tm 3+ nanophosphor could be used for blue component in the warm WLED and SSL devices.