X-ray/proton and photoluminescence behaviors of Sm3+ doped high-density tungsten gadolinium borate scintillating glass

Use of Eggshell Waste as a source of CaO in Sm3+-Doped Na2O-B2O3-CaO-SiO2 Glass Preparation

“…The addition of Sm2O3 leads to light absorption band in the UVvisible region centered at 345, 360, 376, 403, 416, 438, 463 and 472 nm. These correspond to the energy transitions from 6 H5/2 to 4 K15/2, 4 L17/2, 6 P5/2, 6 P3/2, 4 P5/2, 4 G9/2, 4 I13/2 and 4 I11/2, respectively [4]. The highest absorption occurs at 403 nm.…”

“…Among the rare earth ions, trivalent samarium ions (Sm 3+ ) have attracted a lot of interest especially in the fields of high-density optical storage and luminescent devices [3]. A strong intense emission band of the Sm 3+ ions occurs at about 600 nm due to 4 G5/2 → 6 H7/2 transition, which emits the bright red-orange light under UV and visible-light excitation [2,4].…”

Photoluminescence and X‐Ray‐Induced Luminescence Behavior of Sm2O3‐Doped Oxyfluoroborate Scintillating Glass for Radiation Detecting Material

“…[1][2][3][4] Compared with crystals and ceramic scintillators, RE 3þ -activated glass scintillating materials have been extensively studied due to their low cost, easy preparation, and easy to be made into various shapes. [5][6][7][8][9][10] Among the wide glass family, borate glasses are more abundant and reliable than alternate glass forms because of their high doping capability, broad inhomogeneous bandwidths, cheap cost, sensible thermal stability, high transparency, and easy production method. [11][12][13] However, borate glass exhibits maximum phonon energy at around 1200 cm À1 , which affects the nonradiative (NR) luminescence decays, and it can be minimized by the addition of fluoride ions like aluminum fluoride (AlF 3 ), sodium fluoride (NaF), and calcium fluoride (CaF 2 ), and thus generates stronger luminescence output of RE 3þ ions.…”

Luminescence Properties of Samarium Ion‐Doped Silicoborate Glasses for Application in Optoelectronic Material

“…[22][23][24] Recently, many researchers have shown interest in understanding the luminescence properties of Sm 3þ ions in various glass hosts, such as V. Murali Krishna et al, who has studied Sm 3þ ion-doped oxy-fluoro borotellurite glasses, [25] M. Shoaib et al who studied samarium-doped oxide and oxyfluoride phosphate glasses, [26] and N. Wantana et al who studied Sm 3þ -doped tungsten gadolinium borate glass. [27] In addition to Sm 3þ ions, gadolinium (Gd 3þ ) ions are codoped as they behave as an excellent sensitizer to transfer energy from 6 P 7/2 to the energy level of the activator (Sm 3þ ) ions, and it also enhances the luminescence properties of the glass. [28] In addition to the studies mentioned earlier, our previous research studies show the luminescence and energy transfer properties of Gd 3þ and Dy 3þ in two series, namely, DOI: 10.1002/pssa.202200440 Gadolinium sodium silicoborate glasses doped with samarium ion (Sm:GNSB) are prepared by the melt quenching technique.…”

“…[ 22–24 ] Recently, many researchers have shown interest in understanding the luminescence properties of Sm 3+ ions in various glass hosts, such as V. Murali Krishna et al, who has studied Sm 3+ ion‐doped oxy‐fluoro borotellurite glasses, [ 25 ] M. Shoaib et al who studied samarium‐doped oxide and oxyfluoride phosphate glasses, [ 26 ] and N. Wantana et al who studied Sm 3+ ‐doped tungsten gadolinium borate glass. [ 27 ] In addition to Sm 3+ ions, gadolinium (Gd 3+ ) ions are codoped as they behave as an excellent sensitizer to transfer energy from 6 P 7/2 to the energy level of the activator (Sm 3+ ) ions, and it also enhances the luminescence properties of the glass. [ 28 ]…”