Judd-Ofelt Parameters of Erbium Doped Zinc Phosphate Glass Containing Natural Ferrite Oxide Nanoparticles

2019 ◽  
Vol 290 ◽  
pp. 41-45
Author(s):  
Puzi Anigrahawati ◽  
M.R. Sahar ◽  
Sib Krishna Ghoshal
Keyword(s):  
Phosphate Glass ◽  
Zinc Phosphate ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Erbium Ions ◽  
Intensity Parameters ◽  
Zinc Phosphate Glass ◽  
Erbium Doped ◽  
Quenching Method

Erbium ions (Er3+) doped zinc phosphate glass system with varying contents of natural ferrite (Fe3O4) nanoparticles were prepared using melt quenching method. The glass is characterized by x-ray diffraction (XRD) and UV-VIS NIR spectrometer. It is observed that the amorphous nature of the glass is confirmed by x-ray diffraction. The absorption spectra of the glass are recorded in the UV-Visible in the range of 400-1600 nm. The UV-VIS NIR spectra reveal ten absorption peaks centered at 376, 406, 420, 486, 522, 546, 652, 798, 976 and 1534 nm, correspond to the transitions from the ground state 4I15/2 to higher 4I13/2, 4I11/2, 4I9/2, 4F9/2, 4S3/2, 2H11/2, 4F7/2, 4F3/2, 2H9/2, 4G11/2 levels, respectively. Effects of natural ferrite oxide nanoparticles on the absorption and emission properties of the synthesized glasses were analyzed via Judd-Ofelt (J-O) theory. The J-O intensity-parameters (W2, W4, W6) analysis demonstrate a significant increase of spectroscopic quality factors.Keywords: Fe3O4 NPs, Absorption, Judd-Ofelt.

Structural Properties of Erbium Doped Tellurite Glass Embedded with Natural Ferrite Oxide Nanoparticles

2017 ◽  
Vol 268 ◽  
pp. 177-180 ◽  
Author(s):  
Puzi Anigrahawati ◽  
Md Rahim Sahar
Keyword(s):  
Wave Number ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Raman Spectroscopic ◽  
Trigonal Bipyramidal ◽  
Erbium Doped ◽  
Amorphous Nature ◽  
Glassy Materials ◽  
Quenching Method

Natural ferrite oxide nanoparticles (NPs) embed with tellurite glasses ((89-x) TeO2-10ZnO-1Er2O3-(x)Fe3O4, (x = 0 – 0.8 mol %)) were prepared by conventional melt quenching method to study the influence of the Fe3O4 NPs concentration on the stuctural properties of the glass. Studies on these glassy materials characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and RAMAN spectroscopic measurements are presented. It is observed that the amorphous nature of the glass is confirmed by x-ray diffraction. The FTIR studies support the formation of Te-O-Fe linkages. The FTIR spectra reveal modification in network structures evidenced from vibrational wave-number shifts of TeO4 and TeO3 structural units. Raman spectroscopy have been manipulated to observe the structural modification of [TeO4] trigonal bipyramidal structural unit.

Magnetic Properties of Sm3+ Doped Zinc Phosphate Glass Containing Nickel Oxide Nanoparticles

2016 ◽  
Vol 846 ◽  
pp. 80-84
Author(s):  
Siti Amlah Mohamad Azmi ◽  
M.R. Sahar
Keyword(s):  
Phosphate Glass ◽  
Nickel Nanoparticles ◽  
Zinc Phosphate ◽  
Amorphous State ◽  
X Ray Diffraction ◽  
Electron Microscopic ◽  
Nickel Oxide Nanoparticles ◽  
X Ray ◽  
Transmission Electron ◽  
Zinc Phosphate Glass

Nickel nanoparticles are incorporated in Sm3+ doped zinc phosphate glass having a composition of 40ZnO-(58-x)P2O5-1Sm2O3-xNiO, with x = 0.0 and 2.0 mol% prepared by melt quenching technique. Sample characterizations are made by means of X-ray diffraction, transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). X-ray diffraction shows that the glass is in amorphous state. The transmission electron microscopic (TEM) image reveals the existence of Nickel nanoparticles having a particles size in the range of 5.5 – 21.8 nm. The magnetization M(H) curve reveals that the glass displays an anomalous hysteresis behavior at room temperature. It is observed that the initial curve of magnetization lies positively as a function of magnetic field under 1000 H (O.e).

scholarly journals Optical Properties of Erbium Doped Borotellurite Glass System

2015 ◽  
Vol 1112 ◽  
pp. 7-10 ◽  
Author(s):  
Mohamed Kamari Halimah ◽  
M.N. Azlan ◽  
S.Z. Shafinas
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Molar Volume ◽  
X Ray Diffraction ◽  
Melt Quenching ◽  
X Ray ◽  
Erbium Doped ◽  
Amorphous Nature ◽  
Quenching Method ◽  
Xrd Method

Erbium doped zinc borotellurite glasses were prepared by using melt-quenching method. The structural properties of the glass samples were determined by using x-ray diffraction (XRD) method and was confirmed its amorphous nature. The density and molar volume is shown to be increased with increasing content of erbium. The refractive index is found to be increased with increasing content of erbium.

DC and Thermal Conductivity of Lithium Zinc Phosphate Glasses

2017 ◽  
Vol 268 ◽  
pp. 198-204
Author(s):  
A.M. Hilman ◽  
E.S. Sazali ◽  
Md Rahim Sahar ◽  
K. Azman ◽  
Yahya Norihan
Keyword(s):  
Thermal Conductivity ◽  
Molar Volume ◽  
Zinc Phosphate ◽  
Arrhenius Plot ◽  
Phosphate Glasses ◽  
X Ray Diffraction ◽  
X Ray ◽  
Straight Line ◽  
Amorphous Nature ◽  
Quenching Method

The phosphate glasses, with composition (60-x)P2O5-25ZnO-(15+x)Li2O where 0.0 ≤ x ≤ 5.0 mol% are prepared by conventional melt quenching method. The amorphous nature of the glass is determined by X-Ray Diffraction (XRD). The physical properties are measured in term of their density and molar volume. Glass density is found to increase from 2.700 to 2.785 g cm-3 whereas molar volume is found to decrease from 40.735 to 37.488 cm3 mol-1 with respect to Li2O content. The DC measurements are done by using four point probes and the activation energies are determined. Arrhenius plot shows straight line behavior as observed that confirmed the conductivity increased with Li2O content. The activation energy is found to decreases from 0.75 to 0.08 eV as Li2O content is increased in the temperature range from 310 to 420 K. Measurements of the thermal conductivity using Lee’s disc apparatus have been made. It is observed that the maximum and minimum thermal conductivity are 0.2679 and 0.2168 W m-1 K-1 respectively.

scholarly journals Data on the femtosecond laser-induced formation of tracks in silver-containing zinc phosphate glass

Data in Brief ◽  
2021 ◽  
Vol 34 ◽  
pp. 106698
Author(s):  
Georgiy Shakhgildyan ◽  
Alexey Lipatiev ◽  
Maxim Vetchinnikov ◽  
Sergey Fedotov ◽  
Sergey Lotarev ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Phosphate Glass ◽  
Zinc Phosphate ◽  
Zinc Phosphate Glass

Study of emission and optical interaction in the UO2–Nd system doped in zinc phosphate glass

2021 ◽  
Author(s):  
C. C. Dhondiyal ◽  
H. Tiwari ◽  
T. Bhatt ◽  
Hema ◽  
D. K. Upreti ◽  
...  
Keyword(s):  
Phosphate Glass ◽  
Zinc Phosphate ◽  
Zinc Phosphate Glass ◽  
Optical Interaction

Cetyltrimethylammonium bromide- and ethylene glycol-assisted preparation of mono-dispersed indium oxide nanoparticles using hydrothermal method

2014 ◽  
Vol 68 (8) ◽  
Author(s):  
Selvakumar Dhanasingh ◽  
Dharmaraj Nallasamy ◽  
Saravanan Padmanapan ◽  
Vinod Padaki
Keyword(s):  
Ethylene Glycol ◽  
Hydrothermal Method ◽  
Indium Oxide ◽  
Cetyltrimethylammonium Bromide ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Transmission Electron ◽  
Diffraction Patterns

AbstractThe influence of cetyltrimethylammonium bromide and ethylene glycol on the size and dispersion of indium oxide nanoparticles prepared under hydrothermal conditions was investigated. The precursor compound, indium hydroxide, obtained by the hydrothermal method in the absence as well as the presence of cetyltrimethylammonium bromide, was converted to indium oxide by sintering at 400°C. The formation of nanoscale indium oxide upon sintering was ascertained by the characteristic infrared adsorption bands and X-ray diffraction patterns of indium oxide. Transmission electron microscopy and band gap values confirmed that the cetyltrimethylammonium bromide facilitated the formation of indium oxide nanoparticles smaller in size and narrower in distribution than those prepared without the assistance of cetyltrimethylammonium bromide.

Sign in / Sign up

Export Citation Format

Share Document