Effect of Fuel on Structural and Optical Characterization of Gd2O3:Er3+ Phosphor

Abstract

The present paper reports the Photoluminescence (PL) curves of Erbium doped Gd2O3 phosphors. Gd2O3:Er 3+ Phosphor was synthesized by combustion synthesis method. The phosphor were characterized by using X-ray diffractometer (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscopy (TEM) and photoluminescence emission spectra. The particle size was calculated by Debye-Scherer's formula. The XRD patterns reveal that these phosphors have monoclinic crystal structure and particle size is 26 nm for urea and 14 nm for glucose. The optical property was characterized by photoluminescence study. The emission spectra consists peak in the range 450-750nm at 960 nm excitation. The emission spectra have intense green emission at 545 nm for both samples.

Effect of the concentration of TEA on the formation of lead hydroxide micro to nanoparticle

“…This matches with the reported results of Eye who synthesized white thin films of lead hydroxide using 0.1 M aqueous solution of EDTA (due to slow reaction) and obtained the band gap 2.4-2.8 eV. After annealing, lead hydroxide converts into PbO and particle size was found to be 0.39-0.70 nm with increases band gap 2.95 eV [42][43][44][45][46][47]. It implies that when particle size is nanometer range XRD data is justified with band gap variation.…”

“…In recent years, one-dimensional (1-D) nanostructures [4,5] such as nanowires [6][7][8], nanorods [9,10], nanotubes [11][12][13] and two dimensional (2-D) nanoplates/nanosheets [14] have attracted considerable attention. Their remarkable properties [15][16][17] and potential applications [18][19][20] resulted in research upsurge of nanoscience and nanotechnology. Synthesis of 1-D and 2-D nanostructures is vital area of research [21][22][23].…”

Fascinating functional properties of Mn:Gd2O3 nanocrystalline phosphor

“…Also, Gd 2 O 3 is used as an electrolyte material for SOFCs when it is composited with Bi 2 O 3 and CeO 2 [1]. On the other hand, rare earth (RE) oxides, especially Gd 2 O 3 , have been adopted as excellent host lattice for many transition metal activator ions [4]. Gd 2 O 3 has outstanding optical, mechanical, and chemical properties as well as low phonon energy of 419.9 cm -1 (23,815 nm) [5].…”

Upconversion and colour tunability of Gd2O3:Er3+ phosphor prepared by combustion synthesis method

“…When it cooled down to room temperature, the resultant particles were crushed by mortar and pestle and then annealed at different temperatures 600°C, 700°C, 800°C and 900°C for 2h [17,18].…”