Reddish-orange emission and Judd-Ofelt investigation of Sm3+ ions doped in zince-bismuth-phospho-tellurite glasses for solid lighting application

Excitation‐dependent energy transfer and color tunability in Dy3+/Eu3+ co‐doped multi‐component borophosphate glasses

“…Because of the impact of J-mixing between multiplets, low-intensity emission transitions commencing from the 5 D 0 state to 7 F 3 and F I G U R E 5 (A) Excitation and (B) emission spectra of KZnBP:1.0Eu 3+ glass. 7 F 5 are severely forbidden. 14,24,41 The luminescence intensity of the 5 D 0 → 7 F J (J = 1 and 2) transitions relies on the Eu 3+ ion symmetry.…”

“…Optical materials, such as glasses, glass ceramics, polymers, and phosphors, containing trivalent and/or divalent rare‐earth (RE) ions have been extensively investigated over the last few decades owing to their potential applications 1–5 . RE ions, whose 4f intra‐shell is shielded by 5s and 5p outer shells, possess exceptional optical, spectral, dielectric, and magnetic properties, which have given them significant importance in solid‐state lighting (SSL), high‐power lasers, photovoltaic cells, memory storage devices, optical fibers, and amplifiers in telecommunications 6–13 . Among the various classes of optical materials studied, glasses with a wide range of dopant solubility, chemical resistance, thermal stability, mechanical strength, and glass‐formation range are considered suitable host matrices for incorporation with RE ions in different valence states and combinations, such as single and dual combinations (co‐dopants).…”

Luminescence properties of Sm3+ doped Glass ceramics containing Ba3Gd(PO4)3 crystal phase

“…Kolavekar et al prepared Sm 3+ doped zinc-bismuth-phospho-tellurite glass by melt quenching method. CIE chromaticity coordinates are (0.48, 0.52), showing good orange-red emission and low CCT values, indicating potential use in solid-state lighting [6]. Damodaraiah et al prepared Sm 3+ doped Bismuth phosphate glass by traditional melt quenching method.…”

Investigation of gamma-ray shielding parameters of bismuth phospho-tellurite glasses doped with varying Sm2O3

“…As the phosphate glasses have high mechanical, good chemical and high thermal stability, they are potential materials for radiation shielding, radiation sensing, medicine, and industry [ 22 ]. Phosphate glass exhibits good chemical durability and good transparency in visible and infrared regions [ 23 ]. Phosphate and borate glasses doped with Bi 2 O 3 are attracting attention in the world of optoelectronics due to their dual roles as a conditional glass former (when added in large amounts) in some of the host glass matrix and as a modifier role when the concentration of the same is low in the host glass matrix [ 24 , 25 ].…”

“…Reports show that many glasses are known to fulfill these requirements, based on the recent investigation of different glass compositions for their radiation shield competence [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. In order to study luminescence parameters such as stimulated emission cross section and branching ratios, five glass samples having the composition 47.5P 2 O 5 +45ZnO+(5-x)Bi 2 O 3 +2.5TeO 2 +xSm 2 O 3 (where x = 0, 0.01, 0.1, 0.3, 0.5 and 1 mol%) were prepared and found that color vanishes with a minimal amount of Sm 2 O 3 [ 23 ]. These prepared glasses are coded as 0PZBTS, 1PZBTS, 2PZBTS, 3PZBTS, 4PZBTS, and 5PZBTS.…”