Can I read Role of Al2O3 in upconversion and NIR emission in Tm3+ and Er3+ codoped calcium fluoro phosphorous silicate glass system on EtoBox?

Role of Al2O3 in upconversion and NIR emission in Tm3+ and Er3+ codoped calcium fluoro phosphorous silicate glass system by Y. Gandhi; M.V. Ramachandra Rao; Ch. Srinivasa Rao; I.V. Kityk; N. Veeraiah is a Materials Science article available to read on EtoBox.

What is Role of Al2O3 in upconversion and NIR emission in Tm3+ and Er3+ codoped calcium fluoro phosphorous silicate glass system about?

Calcium fluoro phosphorous silicate glass Upconversion Tm 3 þ and Er 3 þ ions a b s t r a c t In this study, the principal role of Al 2 O 3 on the features of the photoluminescence spectra of Tm 3 þ ion and upconversion phenomenon in Tm 3 þ and Er 3 þ codoped CaF 2 À Al 2 O 3 À P 2 O 5 À SiO 2 glass system has been investigated. The concentration of Al 2 O 3 is varied from 2 to 10 mol% while that of Er 3 þ and Tm 3 þ is fixed. IR and Raman spectral studies have indicated that there is a gradual increase in the degree of disorder in the glass network with increase in the concentration of Al 2 O 3 up to 6.0 mol%. This is attributed to the presence of Al 3 þ ions in octahedral positions in larger proportions. When the glasses are doped with Tm 3 þ ions, the blue and red emissions were observed, whereas in Er 3 þ doped glasses blue, green and red emissions were observed. When the glasses are codoped with Tm 3 þ and Er 3 þ ions and excited at 790 nm, all the three emission lines were observed to be reinforced, especially in the glasses mixed with 6.0 mol% of Al 2 O 3 . The IR emission band detected at about 1.8 mm due to 3 F 4 -3 H 6 transition of Tm 3 þ ions is also observed to be stre

Who reads Role of Al2O3 in upconversion and NIR emission in Tm3+ and Er3+ codoped calcium fluoro phosphorous silicate glass system?

Author

Y. Gandhi; M.V. Ramachandra Rao; Ch. Srinivasa Rao; I.V. Kityk; N. Veeraiah

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-2313)

Published

2011

Language

EN

Field

Materials Science (Physical Sciences)