Abstract
Sm3+ doped bismuth borate glasses of the composition (50 - x)B2O3:50Bi2O3:xSm2O3 (where x = 0.00, 0.50, 1.00, 1.50, 2.00 and 2.50 mol%) have been synthesized by conventional melt quenching technique. In order to understand the role of Sm2O3 inbismuth borate glasses, the density, the molar volume, the refractive index and the optical absorption were investigated. The results show that density, molar volume and refractive index of glasses increased with increasing Sm2O3 concentration. The increase of molar volume with Sm2O3 concentration is due to increase of non-bridging oxy- gen (NBOs) in the glass matrices. The optical absorption spectra were measured in the wavelength range 300 - 1100 nm and the optical band gaps were determined. It was found that the optical band gap decreased with the increase of Sm2O3 concentration. Moreover, the X-rays luminescence of Sm2O3 glasses samples were measured and shows emission band at 4G5/2→6H5/2 (569 nm),4G5/2→6H7/2 (598 nm),4G5/2→6H9/2 (641 nm) and4G5/2→6H11/2 (705 nm).
Highlights
Boric oxide, B2O3, acts as one of the most important glass formers and flux materials
In crystalline form, on the other hand, borates with various compositions are of exceptional importance due to their interesting linear and nonlinear optical properties [1]
For the linear properties this anionic group should act in a similar way in an amorphous environment, i.e., in glass
Summary
B2O3, acts as one of the most important glass formers and flux materials. The boron atom usually coordinates with either three or four oxygen atoms forming (BO3)3− or (BO4)5− structural units These two fundamental units can be arbitrarily combined to form different BxOy structural groups [2]. Among these borates, especially the monoclinic bismuth borate BiB3O6 shows up remarkably large linear and nonlinear optical coefficients [3,4]. Especially the monoclinic bismuth borate BiB3O6 shows up remarkably large linear and nonlinear optical coefficients [3,4] Calculations indicate that this can be mainly attributed to the contribution of the (BiO4)5− anionic group [5,6]. The properties of glasses of the system Bi2O3-B2O3 have attracted much
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
