Effect of alkali modifier ion on spectroscopic properties of Cu2+-doped lead zinc phosphate glass system

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pp. 1169-1175 ◽  
Author(s):  
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M. V. V. K. S. Prasad ◽  
B. R. Venkateswara Rao ◽  
J. Sivaramakrishna
2012 ◽  
Vol 133 (1) ◽  
pp. 249-252 ◽  
Author(s):  
R. Lakshmikantha ◽  
R. Rajaramakrishna ◽  
R.V. Anavekar ◽  
N.H. Ayachit

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M.R. Sahar ◽  
Sib Krishna Ghoshal

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.


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